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td-sidebar-link__page" id=m-datasetsdocsv1getting_started><span>Getting started</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-datasetsdocsv1download-and-install-li><a href=/datasets/docs/v1/download-and-install/ class="align-left ps-0 td-sidebar-link
td-sidebar-link__page" id=m-datasetsdocsv1download-and-install><span>Download and install</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section with-child" id=m-datasetsdocsv1how-tos-li><a href=/datasets/docs/v1/how-tos/ class="align-left ps-0 td-sidebar-link
td-sidebar-link__section" id=m-datasetsdocsv1how-tos><span>How-to guides</span></a><ul class="ul-2 foldable"><li class="td-sidebar-nav__section-title td-sidebar-nav__section with-child collapse" id=m-datasetsdocsv1how-tosgenes-li><a href=/datasets/docs/v1/how-tos/genes/ class="align-left ps-0 td-sidebar-link
td-sidebar-link__section" id=m-datasetsdocsv1how-tosgenes><span>Genes</span></a><ul class="ul-3 foldable"><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-datasetsdocsv1how-tosgenesget-gene-metadata-li><a href=/datasets/docs/v1/how-tos/genes/get-gene-metadata/ class="align-left ps-0 td-sidebar-link
td-sidebar-link__page" id=m-datasetsdocsv1how-tosgenesget-gene-metadata><span>Get gene metadata</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-datasetsdocsv1how-tosgenesdownload-gene-data-package-li><a href=/datasets/docs/v1/how-tos/genes/download-gene-data-package/ title="Download a gene data package" class="align-left ps-0 td-sidebar-link
td-sidebar-link__page" id=m-datasetsdocsv1how-tosgenesdownload-gene-data-package><span>Download genes</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-datasetsdocsv1how-tosgenesdownload-ortholog-dataset-li><a href=/datasets/docs/v1/how-tos/genes/download-ortholog-dataset/ title="Download a gene ortholog data package" class="align-left ps-0 td-sidebar-link
td-sidebar-link__page" id=m-datasetsdocsv1how-tosgenesdownload-ortholog-dataset><span>Download gene orthologs</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-datasetsdocsv1how-tosgenesortholog-get-one-isoform-li><a href=/datasets/docs/v1/how-tos/genes/ortholog-get-one-isoform/ title="Get representative protein sequences from Ortholog sets" class="align-left ps-0 td-sidebar-link
td-sidebar-link__page" id=m-datasetsdocsv1how-tosgenesortholog-get-one-isoform><span>Get the longest isoform</span></a></li></ul></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section with-child collapse" id=m-datasetsdocsv1how-tosgenomes-li><a href=/datasets/docs/v1/how-tos/genomes/ class="align-left ps-0 td-sidebar-link
td-sidebar-link__section" id=m-datasetsdocsv1how-tosgenomes><span>Genomes</span></a><ul class="ul-3 foldable"><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-datasetsdocsv1how-tosgenomesget-genome-metadata-li><a href=/datasets/docs/v1/how-tos/genomes/get-genome-metadata/ class="align-left ps-0 td-sidebar-link
td-sidebar-link__page" id=m-datasetsdocsv1how-tosgenomesget-genome-metadata><span>Get genome metadata</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-datasetsdocsv1how-tosgenomesdownload-genome-li><a href=/datasets/docs/v1/how-tos/genomes/download-genome/ title="Download a genome data package" class="align-left ps-0 td-sidebar-link
td-sidebar-link__page" id=m-datasetsdocsv1how-tosgenomesdownload-genome><span>Download genome data</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-datasetsdocsv1how-tosgenomeslarge-download-li><a href=/datasets/docs/v1/how-tos/genomes/large-download/ title="Download large genome data packages" class="align-left ps-0 td-sidebar-link
td-sidebar-link__page" id=m-datasetsdocsv1how-tosgenomeslarge-download><span>Large genome downloads</span></a></li></ul></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section with-child collapse" id=m-datasetsdocsv1how-tosvirus-li><a href=/datasets/docs/v1/how-tos/virus/ class="align-left ps-0 td-sidebar-link
td-sidebar-link__section" id=m-datasetsdocsv1how-tosvirus><span>Virus</span></a><ul class="ul-3 foldable"><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-datasetsdocsv1how-tosvirusget-sars2-genomes-li><a href=/datasets/docs/v1/how-tos/virus/get-sars2-genomes/ title="Download SARS-CoV-2 genomes" class="align-left ps-0 td-sidebar-link
td-sidebar-link__page" id=m-datasetsdocsv1how-tosvirusget-sars2-genomes><span>SARS-CoV-2 genomes</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-datasetsdocsv1how-tosvirusget-sars2-proteins-li><a href=/datasets/docs/v1/how-tos/virus/get-sars2-proteins/ title="Download SARS-CoV-2 protein sequences" class="align-left ps-0 td-sidebar-link
td-sidebar-link__page" id=m-datasetsdocsv1how-tosvirusget-sars2-proteins><span>SARS-CoV-2 proteins</span></a></li></ul></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section with-child collapse" id=m-datasetsdocsv1how-tosdata-reports-li><a href=/datasets/docs/v1/how-tos/data-reports/ class="align-left ps-0 td-sidebar-link
td-sidebar-link__section" id=m-datasetsdocsv1how-tosdata-reports><span>Working with JSON</span></a><ul class="ul-3 foldable"><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-datasetsdocsv1how-tosdata-reportsworking-with-jsonl-data-reports-li><a href=/datasets/docs/v1/how-tos/data-reports/working-with-jsonl-data-reports/ title="Working with JSON Lines data reports" class="align-left ps-0 td-sidebar-link
td-sidebar-link__page" id=m-datasetsdocsv1how-tosdata-reportsworking-with-jsonl-data-reports><span>Working with data reports</span></a></li></ul></li></ul></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section with-child" id=m-datasetsdocsv1languages-li><a href=/datasets/docs/v1/languages/ class="align-left ps-0 td-sidebar-link
td-sidebar-link__section" id=m-datasetsdocsv1languages><span>Supported programming languages</span></a><ul class="ul-2 foldable"><li class="td-sidebar-nav__section-title td-sidebar-nav__section with-child collapse" id=m-datasetsdocsv1languagespython-li><a href=/datasets/docs/v1/languages/python/ class="align-left ps-0 td-sidebar-link
td-sidebar-link__section" id=m-datasetsdocsv1languagespython><span>Python</span></a><ul class="ul-3 foldable"><li class="td-sidebar-nav__section-title td-sidebar-nav__section with-child collapse" id=m-datasetsdocsv1languagespythonapi-li><a href=/datasets/docs/v1/languages/python/api/ class="align-left ps-0 td-sidebar-link
td-sidebar-link__section" id=m-datasetsdocsv1languagespythonapi><span>Python API</span></a><ul class="ul-4 foldable"><li class="td-sidebar-nav__section-title td-sidebar-nav__section with-child collapse" id=m-datasetsdocsv1languagespythonapincbidatasets-li><a href=/datasets/docs/v1/languages/python/api/ncbi.datasets/ title="Package: ncbi.datasets" class="align-left ps-0 td-sidebar-link
td-sidebar-link__section" id=m-datasetsdocsv1languagespythonapincbidatasets><span>ncbi.datasets</span></a><ul class="ul-5 foldable"><li class="td-sidebar-nav__section-title td-sidebar-nav__section with-child collapse" id=m-datasetsdocsv1languagespythonapincbidatasetsmetadata-li><a href=/datasets/docs/v1/languages/python/api/ncbi.datasets/metadata/ title="Package: ncbi.datasets.metadata" class="align-left ps-0 td-sidebar-link
td-sidebar-link__section" id=m-datasetsdocsv1languagespythonapincbidatasetsmetadata><span>metadata</span></a><ul class="ul-6 foldable"><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-datasetsdocsv1languagespythonapincbidatasetsmetadatagene-li><a href=/datasets/docs/v1/languages/python/api/ncbi.datasets/metadata/gene/ title="Module: ncbi.datasets.metadata.gene" class="align-left ps-0 td-sidebar-link
td-sidebar-link__page" id=m-datasetsdocsv1languagespythonapincbidatasetsmetadatagene><span>gene</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-datasetsdocsv1languagespythonapincbidatasetsmetadatagenome-li><a href=/datasets/docs/v1/languages/python/api/ncbi.datasets/metadata/genome/ title="Module: ncbi.datasets.metadata.genome" class="align-left ps-0 td-sidebar-link
td-sidebar-link__page" id=m-datasetsdocsv1languagespythonapincbidatasetsmetadatagenome><span>genome</span></a></li></ul></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section with-child collapse" id=m-datasetsdocsv1languagespythonapincbidatasetsopenapi-li><a href=/datasets/docs/v1/languages/python/api/ncbi.datasets/openapi/ title="Package: ncbi.datasets.openapi" class="align-left ps-0 td-sidebar-link
td-sidebar-link__section" id=m-datasetsdocsv1languagespythonapincbidatasetsopenapi><span>openapi</span></a><ul class="ul-6 foldable"><li class="td-sidebar-nav__section-title td-sidebar-nav__section with-child collapse" id=m-datasetsdocsv1languagespythonapincbidatasetsopenapiapi-li><a href=/datasets/docs/v1/languages/python/api/ncbi.datasets/openapi/api/ title="Package: ncbi.datasets.openapi.api" class="align-left ps-0 td-sidebar-link
td-sidebar-link__section" id=m-datasetsdocsv1languagespythonapincbidatasetsopenapiapi><span>api</span></a><ul class="ul-7 foldable"><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-datasetsdocsv1languagespythonapincbidatasetsopenapiapigene_api-li><a href=/datasets/docs/v1/languages/python/api/ncbi.datasets/openapi/api/gene_api/ title="Module: ncbi.datasets.openapi.api.gene_api" class="align-left ps-0 td-sidebar-link
td-sidebar-link__page" id=m-datasetsdocsv1languagespythonapincbidatasetsopenapiapigene_api><span>gene_api</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-datasetsdocsv1languagespythonapincbidatasetsopenapiapigenome_api-li><a href=/datasets/docs/v1/languages/python/api/ncbi.datasets/openapi/api/genome_api/ title="Module: ncbi.datasets.openapi.api.genome_api" class="align-left ps-0 td-sidebar-link
td-sidebar-link__page" id=m-datasetsdocsv1languagespythonapincbidatasetsopenapiapigenome_api><span>genome_api</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-datasetsdocsv1languagespythonapincbidatasetsopenapiapiprokaryote_api-li><a href=/datasets/docs/v1/languages/python/api/ncbi.datasets/openapi/api/prokaryote_api/ title="Module: ncbi.datasets.openapi.api.prokaryote_api" class="align-left ps-0 td-sidebar-link
td-sidebar-link__page" id=m-datasetsdocsv1languagespythonapincbidatasetsopenapiapiprokaryote_api><span>prokaryote_api</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-datasetsdocsv1languagespythonapincbidatasetsopenapiapitaxonomy_api-li><a href=/datasets/docs/v1/languages/python/api/ncbi.datasets/openapi/api/taxonomy_api/ title="Module: ncbi.datasets.openapi.api.taxonomy_api" class="align-left ps-0 td-sidebar-link
td-sidebar-link__page" id=m-datasetsdocsv1languagespythonapincbidatasetsopenapiapitaxonomy_api><span>taxonomy_api</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-datasetsdocsv1languagespythonapincbidatasetsopenapiapiversion_api-li><a href=/datasets/docs/v1/languages/python/api/ncbi.datasets/openapi/api/version_api/ title="Module: ncbi.datasets.openapi.api.version_api" class="align-left ps-0 td-sidebar-link
td-sidebar-link__page" id=m-datasetsdocsv1languagespythonapincbidatasetsopenapiapiversion_api><span>version_api</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-datasetsdocsv1languagespythonapincbidatasetsopenapiapivirus_api-li><a href=/datasets/docs/v1/languages/python/api/ncbi.datasets/openapi/api/virus_api/ title="Module: ncbi.datasets.openapi.api.virus_api" class="align-left ps-0 td-sidebar-link
td-sidebar-link__page" id=m-datasetsdocsv1languagespythonapincbidatasetsopenapiapivirus_api><span>virus_api</span></a></li></ul></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-datasetsdocsv1languagespythonapincbidatasetsopenapiapi_client-li><a href=/datasets/docs/v1/languages/python/api/ncbi.datasets/openapi/api_client/ title="Module: ncbi.datasets.openapi.api_client" class="align-left ps-0 td-sidebar-link
td-sidebar-link__page" id=m-datasetsdocsv1languagespythonapincbidatasetsopenapiapi_client><span>api_client</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-datasetsdocsv1languagespythonapincbidatasetsopenapiapis-li><a href=/datasets/docs/v1/languages/python/api/ncbi.datasets/openapi/apis/ title="Module: ncbi.datasets.openapi.apis" class="align-left ps-0 td-sidebar-link
td-sidebar-link__page" id=m-datasetsdocsv1languagespythonapincbidatasetsopenapiapis><span>apis</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-datasetsdocsv1languagespythonapincbidatasetsopenapiconfiguration-li><a href=/datasets/docs/v1/languages/python/api/ncbi.datasets/openapi/configuration/ title="Module: ncbi.datasets.openapi.configuration" class="align-left ps-0 td-sidebar-link
td-sidebar-link__page" id=m-datasetsdocsv1languagespythonapincbidatasetsopenapiconfiguration><span>configuration</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-datasetsdocsv1languagespythonapincbidatasetsopenapiexceptions-li><a href=/datasets/docs/v1/languages/python/api/ncbi.datasets/openapi/exceptions/ title="Module: ncbi.datasets.openapi.exceptions" class="align-left ps-0 td-sidebar-link
td-sidebar-link__page" id=m-datasetsdocsv1languagespythonapincbidatasetsopenapiexceptions><span>exceptions</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-datasetsdocsv1languagespythonapincbidatasetsopenapimodel_utils-li><a href=/datasets/docs/v1/languages/python/api/ncbi.datasets/openapi/model_utils/ title="Module: ncbi.datasets.openapi.model_utils" class="align-left ps-0 td-sidebar-link
td-sidebar-link__page" id=m-datasetsdocsv1languagespythonapincbidatasetsopenapimodel_utils><span>model_utils</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section with-child collapse" id=m-datasetsdocsv1languagespythonapincbidatasetsopenapimodel-li><a href=/datasets/docs/v1/languages/python/api/ncbi.datasets/openapi/model/ title="Module: OpenAPI Models" class="align-left ps-0 td-sidebar-link
td-sidebar-link__section" id=m-datasetsdocsv1languagespythonapincbidatasetsopenapimodel><span>models</span></a><ul class="ul-7 foldable"><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-datasetsdocsv1languagespythonapincbidatasetsopenapimodelprotobuf_any-li><a href=/datasets/docs/v1/languages/python/api/ncbi.datasets/openapi/model/protobuf_any/ title="Module: ncbi.datasets.openapi.model.protobuf_any" class="align-left ps-0 td-sidebar-link
td-sidebar-link__page" id=m-datasetsdocsv1languagespythonapincbidatasetsopenapimodelprotobuf_any><span>protobuf_any</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-datasetsdocsv1languagespythonapincbidatasetsopenapimodelrpc_status-li><a href=/datasets/docs/v1/languages/python/api/ncbi.datasets/openapi/model/rpc_status/ title="Module: ncbi.datasets.openapi.model.rpc_status" class="align-left ps-0 td-sidebar-link
td-sidebar-link__page" id=m-datasetsdocsv1languagespythonapincbidatasetsopenapimodelrpc_status><span>rpc_status</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-datasetsdocsv1languagespythonapincbidatasetsopenapimodelv1_accessions-li><a href=/datasets/docs/v1/languages/python/api/ncbi.datasets/openapi/model/v1_accessions/ title="Module: ncbi.datasets.openapi.model.v1_accessions" class="align-left ps-0 td-sidebar-link
td-sidebar-link__page" id=m-datasetsdocsv1languagespythonapincbidatasetsopenapimodelv1_accessions><span>v1_accessions</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-datasetsdocsv1languagespythonapincbidatasetsopenapimodelv1_annotated_assemblies-li><a href=/datasets/docs/v1/languages/python/api/ncbi.datasets/openapi/model/v1_annotated_assemblies/ title="Module: ncbi.datasets.openapi.model.v1_annotated_assemblies" class="align-left ps-0 td-sidebar-link
td-sidebar-link__page" id=m-datasetsdocsv1languagespythonapincbidatasetsopenapimodelv1_annotated_assemblies><span>v1_annotated_assemblies</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-datasetsdocsv1languagespythonapincbidatasetsopenapimodelv1_annotation-li><a href=/datasets/docs/v1/languages/python/api/ncbi.datasets/openapi/model/v1_annotation/ title="Module: ncbi.datasets.openapi.model.v1_annotation" class="align-left ps-0 td-sidebar-link
td-sidebar-link__page" id=m-datasetsdocsv1languagespythonapincbidatasetsopenapimodelv1_annotation><span>v1_annotation</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-datasetsdocsv1languagespythonapincbidatasetsopenapimodelv1_annotation_for_assembly-li><a href=/datasets/docs/v1/languages/python/api/ncbi.datasets/openapi/model/v1_annotation_for_assembly/ title="Module: ncbi.datasets.openapi.model.v1_annotation_for_assembly" class="align-left ps-0 td-sidebar-link
td-sidebar-link__page" id=m-datasetsdocsv1languagespythonapincbidatasetsopenapimodelv1_annotation_for_assembly><span>v1_annotation_for_assembly</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-datasetsdocsv1languagespythonapincbidatasetsopenapimodelv1_annotation_for_assembly_file-li><a href=/datasets/docs/v1/languages/python/api/ncbi.datasets/openapi/model/v1_annotation_for_assembly_file/ title="Module: ncbi.datasets.openapi.model.v1_annotation_for_assembly_file" class="align-left ps-0 td-sidebar-link
td-sidebar-link__page" id=m-datasetsdocsv1languagespythonapincbidatasetsopenapimodelv1_annotation_for_assembly_file><span>v1_annotation_for_assembly_file</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-datasetsdocsv1languagespythonapincbidatasetsopenapimodelv1_annotation_for_assembly_type-li><a href=/datasets/docs/v1/languages/python/api/ncbi.datasets/openapi/model/v1_annotation_for_assembly_type/ title="Module: ncbi.datasets.openapi.model.v1_annotation_for_assembly_type" class="align-left ps-0 td-sidebar-link
td-sidebar-link__page" id=m-datasetsdocsv1languagespythonapincbidatasetsopenapimodelv1_annotation_for_assembly_type><span>v1_annotation_for_assembly_type</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-datasetsdocsv1languagespythonapincbidatasetsopenapimodelv1_annotation_for_virus_type-li><a href=/datasets/docs/v1/languages/python/api/ncbi.datasets/openapi/model/v1_annotation_for_virus_type/ title="Module: ncbi.datasets.openapi.model.v1_annotation_for_virus_type" class="align-left ps-0 td-sidebar-link
td-sidebar-link__page" id=m-datasetsdocsv1languagespythonapincbidatasetsopenapimodelv1_annotation_for_virus_type><span>v1_annotation_for_virus_type</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-datasetsdocsv1languagespythonapincbidatasetsopenapimodelv1_assembly_dataset_availability-li><a href=/datasets/docs/v1/languages/python/api/ncbi.datasets/openapi/model/v1_assembly_dataset_availability/ title="Module: ncbi.datasets.openapi.model.v1_assembly_dataset_availability" class="align-left ps-0 td-sidebar-link
td-sidebar-link__page" id=m-datasetsdocsv1languagespythonapincbidatasetsopenapimodelv1_assembly_dataset_availability><span>v1_assembly_dataset_availability</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-datasetsdocsv1languagespythonapincbidatasetsopenapimodelv1_assembly_dataset_descriptor-li><a href=/datasets/docs/v1/languages/python/api/ncbi.datasets/openapi/model/v1_assembly_dataset_descriptor/ title="Module: ncbi.datasets.openapi.model.v1_assembly_dataset_descriptor" class="align-left ps-0 td-sidebar-link
td-sidebar-link__page" id=m-datasetsdocsv1languagespythonapincbidatasetsopenapimodelv1_assembly_dataset_descriptor><span>v1_assembly_dataset_descriptor</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-datasetsdocsv1languagespythonapincbidatasetsopenapimodelv1_assembly_dataset_descriptor_chromosome-li><a href=/datasets/docs/v1/languages/python/api/ncbi.datasets/openapi/model/v1_assembly_dataset_descriptor_chromosome/ title="Module: ncbi.datasets.openapi.model.v1_assembly_dataset_descriptor_chromosome" class="align-left ps-0 td-sidebar-link
td-sidebar-link__page" id=m-datasetsdocsv1languagespythonapincbidatasetsopenapimodelv1_assembly_dataset_descriptor_chromosome><span>v1_assembly_dataset_descriptor_chromosome</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-datasetsdocsv1languagespythonapincbidatasetsopenapimodelv1_assembly_dataset_descriptors_filter-li><a href=/datasets/docs/v1/languages/python/api/ncbi.datasets/openapi/model/v1_assembly_dataset_descriptors_filter/ title="Module: ncbi.datasets.openapi.model.v1_assembly_dataset_descriptors_filter" class="align-left ps-0 td-sidebar-link
td-sidebar-link__page" id=m-datasetsdocsv1languagespythonapincbidatasetsopenapimodelv1_assembly_dataset_descriptors_filter><span>v1_assembly_dataset_descriptors_filter</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-datasetsdocsv1languagespythonapincbidatasetsopenapimodelv1_assembly_dataset_descriptors_filter_assembly_level-li><a href=/datasets/docs/v1/languages/python/api/ncbi.datasets/openapi/model/v1_assembly_dataset_descriptors_filter_assembly_level/ title="Module: ncbi.datasets.openapi.model.v1_assembly_dataset_descriptors_filter_assembly_level" class="align-left ps-0 td-sidebar-link
td-sidebar-link__page" id=m-datasetsdocsv1languagespythonapincbidatasetsopenapimodelv1_assembly_dataset_descriptors_filter_assembly_level><span>v1_assembly_dataset_descriptors_filter_assembly_level</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-datasetsdocsv1languagespythonapincbidatasetsopenapimodelv1_assembly_dataset_descriptors_filter_assembly_source-li><a href=/datasets/docs/v1/languages/python/api/ncbi.datasets/openapi/model/v1_assembly_dataset_descriptors_filter_assembly_source/ title="Module: ncbi.datasets.openapi.model.v1_assembly_dataset_descriptors_filter_assembly_source" class="align-left ps-0 td-sidebar-link
td-sidebar-link__page" id=m-datasetsdocsv1languagespythonapincbidatasetsopenapimodelv1_assembly_dataset_descriptors_filter_assembly_source><span>v1_assembly_dataset_descriptors_filter_assembly_source</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-datasetsdocsv1languagespythonapincbidatasetsopenapimodelv1_assembly_dataset_descriptors_filter_assembly_version-li><a href=/datasets/docs/v1/languages/python/api/ncbi.datasets/openapi/model/v1_assembly_dataset_descriptors_filter_assembly_version/ title="Module: ncbi.datasets.openapi.model.v1_assembly_dataset_descriptors_filter_assembly_version" class="align-left ps-0 td-sidebar-link
td-sidebar-link__page" id=m-datasetsdocsv1languagespythonapincbidatasetsopenapimodelv1_assembly_dataset_descriptors_filter_assembly_version><span>v1_assembly_dataset_descriptors_filter_assembly_version</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-datasetsdocsv1languagespythonapincbidatasetsopenapimodelv1_assembly_dataset_descriptors_request_content_type-li><a href=/datasets/docs/v1/languages/python/api/ncbi.datasets/openapi/model/v1_assembly_dataset_descriptors_request_content_type/ title="Module: ncbi.datasets.openapi.model.v1_assembly_dataset_descriptors_request_content_type" class="align-left ps-0 td-sidebar-link
td-sidebar-link__page" id=m-datasetsdocsv1languagespythonapincbidatasetsopenapimodelv1_assembly_dataset_descriptors_request_content_type><span>v1_assembly_dataset_descriptors_request_content_type</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-datasetsdocsv1languagespythonapincbidatasetsopenapimodelv1_assembly_dataset_request-li><a href=/datasets/docs/v1/languages/python/api/ncbi.datasets/openapi/model/v1_assembly_dataset_request/ title="Module: ncbi.datasets.openapi.model.v1_assembly_dataset_request" class="align-left ps-0 td-sidebar-link
td-sidebar-link__page" id=m-datasetsdocsv1languagespythonapincbidatasetsopenapimodelv1_assembly_dataset_request><span>v1_assembly_dataset_request</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-datasetsdocsv1languagespythonapincbidatasetsopenapimodelv1_assembly_dataset_request_resolution-li><a href=/datasets/docs/v1/languages/python/api/ncbi.datasets/openapi/model/v1_assembly_dataset_request_resolution/ title="Module: ncbi.datasets.openapi.model.v1_assembly_dataset_request_resolution" class="align-left ps-0 td-sidebar-link
td-sidebar-link__page" id=m-datasetsdocsv1languagespythonapincbidatasetsopenapimodelv1_assembly_dataset_request_resolution><span>v1_assembly_dataset_request_resolution</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-datasetsdocsv1languagespythonapincbidatasetsopenapimodelv1_assembly_match-li><a href=/datasets/docs/v1/languages/python/api/ncbi.datasets/openapi/model/v1_assembly_match/ title="Module: ncbi.datasets.openapi.model.v1_assembly_match" class="align-left ps-0 td-sidebar-link
td-sidebar-link__page" id=m-datasetsdocsv1languagespythonapincbidatasetsopenapimodelv1_assembly_match><span>v1_assembly_match</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-datasetsdocsv1languagespythonapincbidatasetsopenapimodelv1_assembly_metadata-li><a href=/datasets/docs/v1/languages/python/api/ncbi.datasets/openapi/model/v1_assembly_metadata/ title="Module: ncbi.datasets.openapi.model.v1_assembly_metadata" class="align-left ps-0 td-sidebar-link
td-sidebar-link__page" id=m-datasetsdocsv1languagespythonapincbidatasetsopenapimodelv1_assembly_metadata><span>v1_assembly_metadata</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-datasetsdocsv1languagespythonapincbidatasetsopenapimodelv1_assembly_metadata_request-li><a href=/datasets/docs/v1/languages/python/api/ncbi.datasets/openapi/model/v1_assembly_metadata_request/ title="Module: ncbi.datasets.openapi.model.v1_assembly_metadata_request" class="align-left ps-0 td-sidebar-link
td-sidebar-link__page" id=m-datasetsdocsv1languagespythonapincbidatasetsopenapimodelv1_assembly_metadata_request><span>v1_assembly_metadata_request</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-datasetsdocsv1languagespythonapincbidatasetsopenapimodelv1_assembly_metadata_request_bioprojects-li><a href=/datasets/docs/v1/languages/python/api/ncbi.datasets/openapi/model/v1_assembly_metadata_request_bioprojects/ title="Module: ncbi.datasets.openapi.model.v1_assembly_metadata_request_bioprojects" class="align-left ps-0 td-sidebar-link
td-sidebar-link__page" id=m-datasetsdocsv1languagespythonapincbidatasetsopenapimodelv1_assembly_metadata_request_bioprojects><span>v1_assembly_metadata_request_bioprojects</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-datasetsdocsv1languagespythonapincbidatasetsopenapimodelv1_assembly_metadata_request_content_type-li><a href=/datasets/docs/v1/languages/python/api/ncbi.datasets/openapi/model/v1_assembly_metadata_request_content_type/ title="Module: ncbi.datasets.openapi.model.v1_assembly_metadata_request_content_type" class="align-left ps-0 td-sidebar-link
td-sidebar-link__page" id=m-datasetsdocsv1languagespythonapincbidatasetsopenapimodelv1_assembly_metadata_request_content_type><span>v1_assembly_metadata_request_content_type</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-datasetsdocsv1languagespythonapincbidatasetsopenapimodelv1_bio_project-li><a href=/datasets/docs/v1/languages/python/api/ncbi.datasets/openapi/model/v1_bio_project/ title="Module: ncbi.datasets.openapi.model.v1_bio_project" class="align-left ps-0 td-sidebar-link
td-sidebar-link__page" id=m-datasetsdocsv1languagespythonapincbidatasetsopenapimodelv1_bio_project><span>v1_bio_project</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-datasetsdocsv1languagespythonapincbidatasetsopenapimodelv1_bio_project_lineage-li><a href=/datasets/docs/v1/languages/python/api/ncbi.datasets/openapi/model/v1_bio_project_lineage/ title="Module: ncbi.datasets.openapi.model.v1_bio_project_lineage" class="align-left ps-0 td-sidebar-link
td-sidebar-link__page" id=m-datasetsdocsv1languagespythonapincbidatasetsopenapimodelv1_bio_project_lineage><span>v1_bio_project_lineage</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-datasetsdocsv1languagespythonapincbidatasetsopenapimodelv1_busco_stat-li><a href=/datasets/docs/v1/languages/python/api/ncbi.datasets/openapi/model/v1_busco_stat/ title="Module: ncbi.datasets.openapi.model.v1_busco_stat" class="align-left ps-0 td-sidebar-link
td-sidebar-link__page" id=m-datasetsdocsv1languagespythonapincbidatasetsopenapimodelv1_busco_stat><span>v1_busco_stat</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-datasetsdocsv1languagespythonapincbidatasetsopenapimodelv1_count_type-li><a href=/datasets/docs/v1/languages/python/api/ncbi.datasets/openapi/model/v1_count_type/ title="Module: ncbi.datasets.openapi.model.v1_count_type" class="align-left ps-0 td-sidebar-link
td-sidebar-link__page" id=m-datasetsdocsv1languagespythonapincbidatasetsopenapimodelv1_count_type><span>v1_count_type</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-datasetsdocsv1languagespythonapincbidatasetsopenapimodelv1_dataset_request-li><a href=/datasets/docs/v1/languages/python/api/ncbi.datasets/openapi/model/v1_dataset_request/ title="Module: ncbi.datasets.openapi.model.v1_dataset_request" class="align-left ps-0 td-sidebar-link
td-sidebar-link__page" id=m-datasetsdocsv1languagespythonapincbidatasetsopenapimodelv1_dataset_request><span>v1_dataset_request</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-datasetsdocsv1languagespythonapincbidatasetsopenapimodelv1_download_summary-li><a href=/datasets/docs/v1/languages/python/api/ncbi.datasets/openapi/model/v1_download_summary/ title="Module: ncbi.datasets.openapi.model.v1_download_summary" class="align-left ps-0 td-sidebar-link
td-sidebar-link__page" id=m-datasetsdocsv1languagespythonapincbidatasetsopenapimodelv1_download_summary><span>v1_download_summary</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-datasetsdocsv1languagespythonapincbidatasetsopenapimodelv1_download_summary_available_files-li><a href=/datasets/docs/v1/languages/python/api/ncbi.datasets/openapi/model/v1_download_summary_available_files/ title="Module: ncbi.datasets.openapi.model.v1_download_summary_available_files" class="align-left ps-0 td-sidebar-link
td-sidebar-link__page" id=m-datasetsdocsv1languagespythonapincbidatasetsopenapimodelv1_download_summary_available_files><span>v1_download_summary_available_files</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-datasetsdocsv1languagespythonapincbidatasetsopenapimodelv1_download_summary_dehydrated-li><a href=/datasets/docs/v1/languages/python/api/ncbi.datasets/openapi/model/v1_download_summary_dehydrated/ title="Module: ncbi.datasets.openapi.model.v1_download_summary_dehydrated" class="align-left ps-0 td-sidebar-link
td-sidebar-link__page" id=m-datasetsdocsv1languagespythonapincbidatasetsopenapimodelv1_download_summary_dehydrated><span>v1_download_summary_dehydrated</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-datasetsdocsv1languagespythonapincbidatasetsopenapimodelv1_download_summary_file_summary-li><a href=/datasets/docs/v1/languages/python/api/ncbi.datasets/openapi/model/v1_download_summary_file_summary/ title="Module: ncbi.datasets.openapi.model.v1_download_summary_file_summary" class="align-left ps-0 td-sidebar-link
td-sidebar-link__page" id=m-datasetsdocsv1languagespythonapincbidatasetsopenapimodelv1_download_summary_file_summary><span>v1_download_summary_file_summary</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-datasetsdocsv1languagespythonapincbidatasetsopenapimodelv1_download_summary_hydrated-li><a href=/datasets/docs/v1/languages/python/api/ncbi.datasets/openapi/model/v1_download_summary_hydrated/ title="Module: ncbi.datasets.openapi.model.v1_download_summary_hydrated" class="align-left ps-0 td-sidebar-link
td-sidebar-link__page" id=m-datasetsdocsv1languagespythonapincbidatasetsopenapimodelv1_download_summary_hydrated><span>v1_download_summary_hydrated</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-datasetsdocsv1languagespythonapincbidatasetsopenapimodelv1_element_flank_config-li><a href=/datasets/docs/v1/languages/python/api/ncbi.datasets/openapi/model/v1_element_flank_config/ title="Module: ncbi.datasets.openapi.model.v1_element_flank_config" class="align-left ps-0 td-sidebar-link
td-sidebar-link__page" id=m-datasetsdocsv1languagespythonapincbidatasetsopenapimodelv1_element_flank_config><span>v1_element_flank_config</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-datasetsdocsv1languagespythonapincbidatasetsopenapimodelv1_error-li><a href=/datasets/docs/v1/languages/python/api/ncbi.datasets/openapi/model/v1_error/ title="Module: ncbi.datasets.openapi.model.v1_error" class="align-left ps-0 td-sidebar-link
td-sidebar-link__page" id=m-datasetsdocsv1languagespythonapincbidatasetsopenapimodelv1_error><span>v1_error</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-datasetsdocsv1languagespythonapincbidatasetsopenapimodelv1_error_assembly_error_code-li><a href=/datasets/docs/v1/languages/python/api/ncbi.datasets/openapi/model/v1_error_assembly_error_code/ title="Module: ncbi.datasets.openapi.model.v1_error_assembly_error_code" class="align-left ps-0 td-sidebar-link
td-sidebar-link__page" id=m-datasetsdocsv1languagespythonapincbidatasetsopenapimodelv1_error_assembly_error_code><span>v1_error_assembly_error_code</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-datasetsdocsv1languagespythonapincbidatasetsopenapimodelv1_error_gene_error_code-li><a href=/datasets/docs/v1/languages/python/api/ncbi.datasets/openapi/model/v1_error_gene_error_code/ title="Module: ncbi.datasets.openapi.model.v1_error_gene_error_code" class="align-left ps-0 td-sidebar-link
td-sidebar-link__page" id=m-datasetsdocsv1languagespythonapincbidatasetsopenapimodelv1_error_gene_error_code><span>v1_error_gene_error_code</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-datasetsdocsv1languagespythonapincbidatasetsopenapimodelv1_error_virus_error_code-li><a href=/datasets/docs/v1/languages/python/api/ncbi.datasets/openapi/model/v1_error_virus_error_code/ title="Module: ncbi.datasets.openapi.model.v1_error_virus_error_code" class="align-left ps-0 td-sidebar-link
td-sidebar-link__page" id=m-datasetsdocsv1languagespythonapincbidatasetsopenapimodelv1_error_virus_error_code><span>v1_error_virus_error_code</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-datasetsdocsv1languagespythonapincbidatasetsopenapimodelv1_fasta-li><a href=/datasets/docs/v1/languages/python/api/ncbi.datasets/openapi/model/v1_fasta/ title="Module: ncbi.datasets.openapi.model.v1_fasta" class="align-left ps-0 td-sidebar-link
td-sidebar-link__page" id=m-datasetsdocsv1languagespythonapincbidatasetsopenapimodelv1_fasta><span>v1_fasta</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-datasetsdocsv1languagespythonapincbidatasetsopenapimodelv1_feature_counts-li><a href=/datasets/docs/v1/languages/python/api/ncbi.datasets/openapi/model/v1_feature_counts/ title="Module: ncbi.datasets.openapi.model.v1_feature_counts" class="align-left ps-0 td-sidebar-link
td-sidebar-link__page" id=m-datasetsdocsv1languagespythonapincbidatasetsopenapimodelv1_feature_counts><span>v1_feature_counts</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-datasetsdocsv1languagespythonapincbidatasetsopenapimodelv1_gene_counts-li><a href=/datasets/docs/v1/languages/python/api/ncbi.datasets/openapi/model/v1_gene_counts/ title="Module: ncbi.datasets.openapi.model.v1_gene_counts" class="align-left ps-0 td-sidebar-link
td-sidebar-link__page" id=m-datasetsdocsv1languagespythonapincbidatasetsopenapimodelv1_gene_counts><span>v1_gene_counts</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-datasetsdocsv1languagespythonapincbidatasetsopenapimodelv1_gene_dataset_request-li><a href=/datasets/docs/v1/languages/python/api/ncbi.datasets/openapi/model/v1_gene_dataset_request/ title="Module: ncbi.datasets.openapi.model.v1_gene_dataset_request" class="align-left ps-0 td-sidebar-link
td-sidebar-link__page" id=m-datasetsdocsv1languagespythonapincbidatasetsopenapimodelv1_gene_dataset_request><span>v1_gene_dataset_request</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-datasetsdocsv1languagespythonapincbidatasetsopenapimodelv1_gene_dataset_request_content_type-li><a href=/datasets/docs/v1/languages/python/api/ncbi.datasets/openapi/model/v1_gene_dataset_request_content_type/ title="Module: ncbi.datasets.openapi.model.v1_gene_dataset_request_content_type" class="align-left ps-0 td-sidebar-link
td-sidebar-link__page" id=m-datasetsdocsv1languagespythonapincbidatasetsopenapimodelv1_gene_dataset_request_content_type><span>v1_gene_dataset_request_content_type</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-datasetsdocsv1languagespythonapincbidatasetsopenapimodelv1_gene_dataset_request_sort-li><a href=/datasets/docs/v1/languages/python/api/ncbi.datasets/openapi/model/v1_gene_dataset_request_sort/ title="Module: ncbi.datasets.openapi.model.v1_gene_dataset_request_sort" class="align-left ps-0 td-sidebar-link
td-sidebar-link__page" id=m-datasetsdocsv1languagespythonapincbidatasetsopenapimodelv1_gene_dataset_request_sort><span>v1_gene_dataset_request_sort</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-datasetsdocsv1languagespythonapincbidatasetsopenapimodelv1_gene_dataset_request_sort_field-li><a href=/datasets/docs/v1/languages/python/api/ncbi.datasets/openapi/model/v1_gene_dataset_request_sort_field/ title="Module: ncbi.datasets.openapi.model.v1_gene_dataset_request_sort_field" class="align-left ps-0 td-sidebar-link
td-sidebar-link__page" id=m-datasetsdocsv1languagespythonapincbidatasetsopenapimodelv1_gene_dataset_request_sort_field><span>v1_gene_dataset_request_sort_field</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-datasetsdocsv1languagespythonapincbidatasetsopenapimodelv1_gene_dataset_request_symbols_for_taxon-li><a href=/datasets/docs/v1/languages/python/api/ncbi.datasets/openapi/model/v1_gene_dataset_request_symbols_for_taxon/ title="Module: ncbi.datasets.openapi.model.v1_gene_dataset_request_symbols_for_taxon" class="align-left ps-0 td-sidebar-link
td-sidebar-link__page" id=m-datasetsdocsv1languagespythonapincbidatasetsopenapimodelv1_gene_dataset_request_symbols_for_taxon><span>v1_gene_dataset_request_symbols_for_taxon</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-datasetsdocsv1languagespythonapincbidatasetsopenapimodelv1_gene_descriptor-li><a href=/datasets/docs/v1/languages/python/api/ncbi.datasets/openapi/model/v1_gene_descriptor/ title="Module: ncbi.datasets.openapi.model.v1_gene_descriptor" class="align-left ps-0 td-sidebar-link
td-sidebar-link__page" id=m-datasetsdocsv1languagespythonapincbidatasetsopenapimodelv1_gene_descriptor><span>v1_gene_descriptor</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-datasetsdocsv1languagespythonapincbidatasetsopenapimodelv1_gene_descriptor_gene_type-li><a href=/datasets/docs/v1/languages/python/api/ncbi.datasets/openapi/model/v1_gene_descriptor_gene_type/ title="Module: ncbi.datasets.openapi.model.v1_gene_descriptor_gene_type" class="align-left ps-0 td-sidebar-link
td-sidebar-link__page" id=m-datasetsdocsv1languagespythonapincbidatasetsopenapimodelv1_gene_descriptor_gene_type><span>v1_gene_descriptor_gene_type</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-datasetsdocsv1languagespythonapincbidatasetsopenapimodelv1_gene_descriptor_rna_type-li><a href=/datasets/docs/v1/languages/python/api/ncbi.datasets/openapi/model/v1_gene_descriptor_rna_type/ title="Module: ncbi.datasets.openapi.model.v1_gene_descriptor_rna_type" class="align-left ps-0 td-sidebar-link
td-sidebar-link__page" id=m-datasetsdocsv1languagespythonapincbidatasetsopenapimodelv1_gene_descriptor_rna_type><span>v1_gene_descriptor_rna_type</span></a></li></ul></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-datasetsdocsv1languagespythonapincbidatasetsopenapimodels-li><a href=/datasets/docs/v1/languages/python/api/ncbi.datasets/openapi/models/ title="Module: OpenAPI Models" class="align-left ps-0 td-sidebar-link
td-sidebar-link__section" id=m-datasetsdocsv1languagespythonapincbidatasetsopenapimodels><span>models</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-datasetsdocsv1languagespythonapincbidatasetsopenapirest-li><a href=/datasets/docs/v1/languages/python/api/ncbi.datasets/openapi/rest/ title="Module: ncbi.datasets.openapi.rest" class="align-left ps-0 td-sidebar-link
td-sidebar-link__page" id=m-datasetsdocsv1languagespythonapincbidatasetsopenapirest><span>rest</span></a></li></ul></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section with-child collapse" id=m-datasetsdocsv1languagespythonapincbidatasetspackage-li><a href=/datasets/docs/v1/languages/python/api/ncbi.datasets/package/ title="Package: ncbi.datasets.package" class="align-left ps-0 td-sidebar-link
td-sidebar-link__section" id=m-datasetsdocsv1languagespythonapincbidatasetspackage><span>package</span></a><ul class="ul-6 foldable"><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-datasetsdocsv1languagespythonapincbidatasetspackagedataset-li><a href=/datasets/docs/v1/languages/python/api/ncbi.datasets/package/dataset/ title="Module: ncbi.datasets.package.dataset" class="align-left ps-0 td-sidebar-link
td-sidebar-link__page" id=m-datasetsdocsv1languagespythonapincbidatasetspackagedataset><span>dataset</span></a></li></ul></li></ul></li></ul></li></ul></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-datasetsdocsv1languagesr-li><a href=/datasets/docs/v1/languages/r/ class="align-left ps-0 td-sidebar-link
td-sidebar-link__section" id=m-datasetsdocsv1languagesr><span>R</span></a></li></ul></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section with-child active-path" id=m-datasetsdocsv1reference-docs-li><a href=/datasets/docs/v1/reference-docs/ class="align-left ps-0 td-sidebar-link
td-sidebar-link__section" id=m-datasetsdocsv1reference-docs><span>Reference</span></a><ul class="ul-2 foldable"><li class="td-sidebar-nav__section-title td-sidebar-nav__section with-child" id=m-datasetsdocsv1reference-docscommand-line-li><a href=/datasets/docs/v1/reference-docs/command-line/ title="Command line tool reference" class="align-left ps-0 td-sidebar-link
td-sidebar-link__section" id=m-datasetsdocsv1reference-docscommand-line><span>Command line</span></a><ul class="ul-3 foldable"><li class="td-sidebar-nav__section-title td-sidebar-nav__section with-child collapse" id=m-datasetsdocsv1reference-docscommand-linedataformat-li><a href=/datasets/docs/v1/reference-docs/command-line/dataformat/ class="align-left ps-0 td-sidebar-link
td-sidebar-link__section" id=m-datasetsdocsv1reference-docscommand-linedataformat><span>dataformat</span></a><ul class="ul-4 foldable"><li class="td-sidebar-nav__section-title td-sidebar-nav__section with-child collapse" id=m-datasetsdocsv1reference-docscommand-linedataformattsv-li><a href=/datasets/docs/v1/reference-docs/command-line/dataformat/tsv/ class="align-left ps-0 td-sidebar-link
td-sidebar-link__section" id=m-datasetsdocsv1reference-docscommand-linedataformattsv><span>tsv</span></a><ul class="ul-5 foldable"><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-datasetsdocsv1reference-docscommand-linedataformattsvdataformat_tsv_genome-li><a href=/datasets/docs/v1/reference-docs/command-line/dataformat/tsv/dataformat_tsv_genome/ class="align-left ps-0 td-sidebar-link
td-sidebar-link__page" id=m-datasetsdocsv1reference-docscommand-linedataformattsvdataformat_tsv_genome><span>genome</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-datasetsdocsv1reference-docscommand-linedataformattsvdataformat_tsv_genome-seq-li><a href=/datasets/docs/v1/reference-docs/command-line/dataformat/tsv/dataformat_tsv_genome-seq/ class="align-left ps-0 td-sidebar-link
td-sidebar-link__page" id=m-datasetsdocsv1reference-docscommand-linedataformattsvdataformat_tsv_genome-seq><span>genome-seq</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-datasetsdocsv1reference-docscommand-linedataformattsvdataformat_tsv_gene-li><a href=/datasets/docs/v1/reference-docs/command-line/dataformat/tsv/dataformat_tsv_gene/ class="align-left ps-0 td-sidebar-link
td-sidebar-link__page" id=m-datasetsdocsv1reference-docscommand-linedataformattsvdataformat_tsv_gene><span>gene</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-datasetsdocsv1reference-docscommand-linedataformattsvdataformat_tsv_virus-genome-li><a href=/datasets/docs/v1/reference-docs/command-line/dataformat/tsv/dataformat_tsv_virus-genome/ class="align-left ps-0 td-sidebar-link
td-sidebar-link__page" id=m-datasetsdocsv1reference-docscommand-linedataformattsvdataformat_tsv_virus-genome><span>virus-genome</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-datasetsdocsv1reference-docscommand-linedataformattsvdataformat_tsv_microbigge-li><a href=/datasets/docs/v1/reference-docs/command-line/dataformat/tsv/dataformat_tsv_microbigge/ class="align-left ps-0 td-sidebar-link
td-sidebar-link__page" id=m-datasetsdocsv1reference-docscommand-linedataformattsvdataformat_tsv_microbigge><span>microbigge</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-datasetsdocsv1reference-docscommand-linedataformattsvdataformat_tsv_prok-gene-li><a href=/datasets/docs/v1/reference-docs/command-line/dataformat/tsv/dataformat_tsv_prok-gene/ class="align-left ps-0 td-sidebar-link
td-sidebar-link__page" id=m-datasetsdocsv1reference-docscommand-linedataformattsvdataformat_tsv_prok-gene><span>prok-gene</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-datasetsdocsv1reference-docscommand-linedataformattsvdataformat_tsv_prok-gene-location-li><a href=/datasets/docs/v1/reference-docs/command-line/dataformat/tsv/dataformat_tsv_prok-gene-location/ class="align-left ps-0 td-sidebar-link
td-sidebar-link__page" id=m-datasetsdocsv1reference-docscommand-linedataformattsvdataformat_tsv_prok-gene-location><span>prok-gene-location</span></a></li></ul></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section with-child collapse" id=m-datasetsdocsv1reference-docscommand-linedataformatexcel-li><a href=/datasets/docs/v1/reference-docs/command-line/dataformat/excel/ class="align-left ps-0 td-sidebar-link
td-sidebar-link__section" id=m-datasetsdocsv1reference-docscommand-linedataformatexcel><span>excel</span></a><ul class="ul-5 foldable"><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-datasetsdocsv1reference-docscommand-linedataformatexceldataformat_excel_genome-li><a href=/datasets/docs/v1/reference-docs/command-line/dataformat/excel/dataformat_excel_genome/ class="align-left ps-0 td-sidebar-link
td-sidebar-link__page" id=m-datasetsdocsv1reference-docscommand-linedataformatexceldataformat_excel_genome><span>genome</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-datasetsdocsv1reference-docscommand-linedataformatexceldataformat_excel_genome-seq-li><a href=/datasets/docs/v1/reference-docs/command-line/dataformat/excel/dataformat_excel_genome-seq/ class="align-left ps-0 td-sidebar-link
td-sidebar-link__page" id=m-datasetsdocsv1reference-docscommand-linedataformatexceldataformat_excel_genome-seq><span>genome-seq</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-datasetsdocsv1reference-docscommand-linedataformatexceldataformat_excel_gene-li><a href=/datasets/docs/v1/reference-docs/command-line/dataformat/excel/dataformat_excel_gene/ class="align-left ps-0 td-sidebar-link
td-sidebar-link__page" id=m-datasetsdocsv1reference-docscommand-linedataformatexceldataformat_excel_gene><span>gene</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-datasetsdocsv1reference-docscommand-linedataformatexceldataformat_excel_virus-genome-li><a href=/datasets/docs/v1/reference-docs/command-line/dataformat/excel/dataformat_excel_virus-genome/ class="align-left ps-0 td-sidebar-link
td-sidebar-link__page" id=m-datasetsdocsv1reference-docscommand-linedataformatexceldataformat_excel_virus-genome><span>virus-genome</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-datasetsdocsv1reference-docscommand-linedataformatexceldataformat_excel_microbigge-li><a href=/datasets/docs/v1/reference-docs/command-line/dataformat/excel/dataformat_excel_microbigge/ class="align-left ps-0 td-sidebar-link
td-sidebar-link__page" id=m-datasetsdocsv1reference-docscommand-linedataformatexceldataformat_excel_microbigge><span>microbigge</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-datasetsdocsv1reference-docscommand-linedataformatexceldataformat_excel_prok-gene-li><a href=/datasets/docs/v1/reference-docs/command-line/dataformat/excel/dataformat_excel_prok-gene/ class="align-left ps-0 td-sidebar-link
td-sidebar-link__page" id=m-datasetsdocsv1reference-docscommand-linedataformatexceldataformat_excel_prok-gene><span>prok-gene</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-datasetsdocsv1reference-docscommand-linedataformatexceldataformat_excel_prok-gene-location-li><a href=/datasets/docs/v1/reference-docs/command-line/dataformat/excel/dataformat_excel_prok-gene-location/ class="align-left ps-0 td-sidebar-link
td-sidebar-link__page" id=m-datasetsdocsv1reference-docscommand-linedataformatexceldataformat_excel_prok-gene-location><span>prok-gene-location</span></a></li></ul></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-datasetsdocsv1reference-docscommand-linedataformatdataformat_catalog-li><a href=/datasets/docs/v1/reference-docs/command-line/dataformat/dataformat_catalog/ class="align-left ps-0 td-sidebar-link
td-sidebar-link__page" id=m-datasetsdocsv1reference-docscommand-linedataformatdataformat_catalog><span>catalog</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section with-child collapse" id=m-datasetsdocsv1reference-docscommand-linedataformatcompletion-li><a href=/datasets/docs/v1/reference-docs/command-line/dataformat/completion/ class="align-left ps-0 td-sidebar-link
td-sidebar-link__section" id=m-datasetsdocsv1reference-docscommand-linedataformatcompletion><span>completion</span></a><ul class="ul-5 foldable"><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-datasetsdocsv1reference-docscommand-linedataformatcompletiondataformat_completion_bash-li><a href=/datasets/docs/v1/reference-docs/command-line/dataformat/completion/dataformat_completion_bash/ class="align-left ps-0 td-sidebar-link
td-sidebar-link__page" id=m-datasetsdocsv1reference-docscommand-linedataformatcompletiondataformat_completion_bash><span>bash</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-datasetsdocsv1reference-docscommand-linedataformatcompletiondataformat_completion_zsh-li><a href=/datasets/docs/v1/reference-docs/command-line/dataformat/completion/dataformat_completion_zsh/ class="align-left ps-0 td-sidebar-link
td-sidebar-link__page" id=m-datasetsdocsv1reference-docscommand-linedataformatcompletiondataformat_completion_zsh><span>zsh</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-datasetsdocsv1reference-docscommand-linedataformatcompletiondataformat_completion_fish-li><a href=/datasets/docs/v1/reference-docs/command-line/dataformat/completion/dataformat_completion_fish/ class="align-left ps-0 td-sidebar-link
td-sidebar-link__page" id=m-datasetsdocsv1reference-docscommand-linedataformatcompletiondataformat_completion_fish><span>fish</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-datasetsdocsv1reference-docscommand-linedataformatcompletiondataformat_completion_powershell-li><a href=/datasets/docs/v1/reference-docs/command-line/dataformat/completion/dataformat_completion_powershell/ class="align-left ps-0 td-sidebar-link
td-sidebar-link__page" id=m-datasetsdocsv1reference-docscommand-linedataformatcompletiondataformat_completion_powershell><span>powershell</span></a></li></ul></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-datasetsdocsv1reference-docscommand-linedataformatdataformat_version-li><a href=/datasets/docs/v1/reference-docs/command-line/dataformat/dataformat_version/ class="align-left ps-0 td-sidebar-link
td-sidebar-link__page" id=m-datasetsdocsv1reference-docscommand-linedataformatdataformat_version><span>version</span></a></li></ul></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section with-child collapse" id=m-datasetsdocsv1reference-docscommand-linedatasets-li><a href=/datasets/docs/v1/reference-docs/command-line/datasets/ class="align-left ps-0 td-sidebar-link
td-sidebar-link__section" id=m-datasetsdocsv1reference-docscommand-linedatasets><span>datasets</span></a><ul class="ul-4 foldable"><li class="td-sidebar-nav__section-title td-sidebar-nav__section with-child collapse" id=m-datasetsdocsv1reference-docscommand-linedatasetssummary-li><a href=/datasets/docs/v1/reference-docs/command-line/datasets/summary/ class="align-left ps-0 td-sidebar-link
td-sidebar-link__section" id=m-datasetsdocsv1reference-docscommand-linedatasetssummary><span>summary</span></a><ul class="ul-5 foldable"><li class="td-sidebar-nav__section-title td-sidebar-nav__section with-child collapse" id=m-datasetsdocsv1reference-docscommand-linedatasetssummaryvirus-li><a href=/datasets/docs/v1/reference-docs/command-line/datasets/summary/virus/ class="align-left ps-0 td-sidebar-link
td-sidebar-link__section" id=m-datasetsdocsv1reference-docscommand-linedatasetssummaryvirus><span>virus</span></a><ul class="ul-6 foldable"><li class="td-sidebar-nav__section-title td-sidebar-nav__section with-child collapse" id=m-datasetsdocsv1reference-docscommand-linedatasetssummaryvirusgenome-li><a href=/datasets/docs/v1/reference-docs/command-line/datasets/summary/virus/genome/ class="align-left ps-0 td-sidebar-link
td-sidebar-link__section" id=m-datasetsdocsv1reference-docscommand-linedatasetssummaryvirusgenome><span>genome</span></a><ul class="ul-7 foldable"><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-datasetsdocsv1reference-docscommand-linedatasetssummaryvirusgenomedatasets_summary_virus_genome_taxon-li><a href=/datasets/docs/v1/reference-docs/command-line/datasets/summary/virus/genome/datasets_summary_virus_genome_taxon/ class="align-left ps-0 td-sidebar-link
td-sidebar-link__page" id=m-datasetsdocsv1reference-docscommand-linedatasetssummaryvirusgenomedatasets_summary_virus_genome_taxon><span>taxon</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-datasetsdocsv1reference-docscommand-linedatasetssummaryvirusgenomedatasets_summary_virus_genome_accession-li><a href=/datasets/docs/v1/reference-docs/command-line/datasets/summary/virus/genome/datasets_summary_virus_genome_accession/ class="align-left ps-0 td-sidebar-link
td-sidebar-link__page" id=m-datasetsdocsv1reference-docscommand-linedatasetssummaryvirusgenomedatasets_summary_virus_genome_accession><span>accession</span></a></li></ul></li></ul></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section with-child collapse" id=m-datasetsdocsv1reference-docscommand-linedatasetssummarygene-li><a href=/datasets/docs/v1/reference-docs/command-line/datasets/summary/gene/ class="align-left ps-0 td-sidebar-link
td-sidebar-link__section" id=m-datasetsdocsv1reference-docscommand-linedatasetssummarygene><span>gene</span></a><ul class="ul-6 foldable"><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-datasetsdocsv1reference-docscommand-linedatasetssummarygenedatasets_summary_gene_gene-id-li><a href=/datasets/docs/v1/reference-docs/command-line/datasets/summary/gene/datasets_summary_gene_gene-id/ class="align-left ps-0 td-sidebar-link
td-sidebar-link__page" id=m-datasetsdocsv1reference-docscommand-linedatasetssummarygenedatasets_summary_gene_gene-id><span>gene-id</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-datasetsdocsv1reference-docscommand-linedatasetssummarygenedatasets_summary_gene_symbol-li><a href=/datasets/docs/v1/reference-docs/command-line/datasets/summary/gene/datasets_summary_gene_symbol/ class="align-left ps-0 td-sidebar-link
td-sidebar-link__page" id=m-datasetsdocsv1reference-docscommand-linedatasetssummarygenedatasets_summary_gene_symbol><span>symbol</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-datasetsdocsv1reference-docscommand-linedatasetssummarygenedatasets_summary_gene_accession-li><a href=/datasets/docs/v1/reference-docs/command-line/datasets/summary/gene/datasets_summary_gene_accession/ class="align-left ps-0 td-sidebar-link
td-sidebar-link__page" id=m-datasetsdocsv1reference-docscommand-linedatasetssummarygenedatasets_summary_gene_accession><span>accession</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-datasetsdocsv1reference-docscommand-linedatasetssummarygenedatasets_summary_gene_taxon-li><a href=/datasets/docs/v1/reference-docs/command-line/datasets/summary/gene/datasets_summary_gene_taxon/ class="align-left ps-0 td-sidebar-link
td-sidebar-link__page" id=m-datasetsdocsv1reference-docscommand-linedatasetssummarygenedatasets_summary_gene_taxon><span>taxon</span></a></li></ul></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section with-child collapse" id=m-datasetsdocsv1reference-docscommand-linedatasetssummarygenome-li><a href=/datasets/docs/v1/reference-docs/command-line/datasets/summary/genome/ class="align-left ps-0 td-sidebar-link
td-sidebar-link__section" id=m-datasetsdocsv1reference-docscommand-linedatasetssummarygenome><span>genome</span></a><ul class="ul-6 foldable"><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-datasetsdocsv1reference-docscommand-linedatasetssummarygenomedatasets_summary_genome_accession-li><a href=/datasets/docs/v1/reference-docs/command-line/datasets/summary/genome/datasets_summary_genome_accession/ class="align-left ps-0 td-sidebar-link
td-sidebar-link__page" id=m-datasetsdocsv1reference-docscommand-linedatasetssummarygenomedatasets_summary_genome_accession><span>accession</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-datasetsdocsv1reference-docscommand-linedatasetssummarygenomedatasets_summary_genome_taxon-li><a href=/datasets/docs/v1/reference-docs/command-line/datasets/summary/genome/datasets_summary_genome_taxon/ class="align-left ps-0 td-sidebar-link
td-sidebar-link__page" id=m-datasetsdocsv1reference-docscommand-linedatasetssummarygenomedatasets_summary_genome_taxon><span>taxon</span></a></li></ul></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section with-child collapse" id=m-datasetsdocsv1reference-docscommand-linedatasetssummaryortholog-li><a href=/datasets/docs/v1/reference-docs/command-line/datasets/summary/ortholog/ class="align-left ps-0 td-sidebar-link
td-sidebar-link__section" id=m-datasetsdocsv1reference-docscommand-linedatasetssummaryortholog><span>ortholog</span></a><ul class="ul-6 foldable"><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-datasetsdocsv1reference-docscommand-linedatasetssummaryorthologdatasets_summary_ortholog_gene-id-li><a href=/datasets/docs/v1/reference-docs/command-line/datasets/summary/ortholog/datasets_summary_ortholog_gene-id/ class="align-left ps-0 td-sidebar-link
td-sidebar-link__page" id=m-datasetsdocsv1reference-docscommand-linedatasetssummaryorthologdatasets_summary_ortholog_gene-id><span>gene-id</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-datasetsdocsv1reference-docscommand-linedatasetssummaryorthologdatasets_summary_ortholog_symbol-li><a href=/datasets/docs/v1/reference-docs/command-line/datasets/summary/ortholog/datasets_summary_ortholog_symbol/ class="align-left ps-0 td-sidebar-link
td-sidebar-link__page" id=m-datasetsdocsv1reference-docscommand-linedatasetssummaryorthologdatasets_summary_ortholog_symbol><span>symbol</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-datasetsdocsv1reference-docscommand-linedatasetssummaryorthologdatasets_summary_ortholog_accession-li><a href=/datasets/docs/v1/reference-docs/command-line/datasets/summary/ortholog/datasets_summary_ortholog_accession/ class="align-left ps-0 td-sidebar-link
td-sidebar-link__page" id=m-datasetsdocsv1reference-docscommand-linedatasetssummaryorthologdatasets_summary_ortholog_accession><span>accession</span></a></li></ul></li></ul></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section with-child collapse" id=m-datasetsdocsv1reference-docscommand-linedatasetsdownload-li><a href=/datasets/docs/v1/reference-docs/command-line/datasets/download/ class="align-left ps-0 td-sidebar-link
td-sidebar-link__section" id=m-datasetsdocsv1reference-docscommand-linedatasetsdownload><span>download</span></a><ul class="ul-5 foldable"><li class="td-sidebar-nav__section-title td-sidebar-nav__section with-child collapse" id=m-datasetsdocsv1reference-docscommand-linedatasetsdownloadgene-li><a href=/datasets/docs/v1/reference-docs/command-line/datasets/download/gene/ class="align-left ps-0 td-sidebar-link
td-sidebar-link__section" id=m-datasetsdocsv1reference-docscommand-linedatasetsdownloadgene><span>gene</span></a><ul class="ul-6 foldable"><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-datasetsdocsv1reference-docscommand-linedatasetsdownloadgenedatasets_download_gene_gene-id-li><a href=/datasets/docs/v1/reference-docs/command-line/datasets/download/gene/datasets_download_gene_gene-id/ class="align-left ps-0 td-sidebar-link
td-sidebar-link__page" id=m-datasetsdocsv1reference-docscommand-linedatasetsdownloadgenedatasets_download_gene_gene-id><span>gene-id</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-datasetsdocsv1reference-docscommand-linedatasetsdownloadgenedatasets_download_gene_symbol-li><a href=/datasets/docs/v1/reference-docs/command-line/datasets/download/gene/datasets_download_gene_symbol/ class="align-left ps-0 td-sidebar-link
td-sidebar-link__page" id=m-datasetsdocsv1reference-docscommand-linedatasetsdownloadgenedatasets_download_gene_symbol><span>symbol</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-datasetsdocsv1reference-docscommand-linedatasetsdownloadgenedatasets_download_gene_accession-li><a href=/datasets/docs/v1/reference-docs/command-line/datasets/download/gene/datasets_download_gene_accession/ class="align-left ps-0 td-sidebar-link
td-sidebar-link__page" id=m-datasetsdocsv1reference-docscommand-linedatasetsdownloadgenedatasets_download_gene_accession><span>accession</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-datasetsdocsv1reference-docscommand-linedatasetsdownloadgenedatasets_download_gene_taxon-li><a href=/datasets/docs/v1/reference-docs/command-line/datasets/download/gene/datasets_download_gene_taxon/ class="align-left ps-0 td-sidebar-link
td-sidebar-link__page" id=m-datasetsdocsv1reference-docscommand-linedatasetsdownloadgenedatasets_download_gene_taxon><span>taxon</span></a></li></ul></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section with-child collapse" id=m-datasetsdocsv1reference-docscommand-linedatasetsdownloadgenome-li><a href=/datasets/docs/v1/reference-docs/command-line/datasets/download/genome/ class="align-left ps-0 td-sidebar-link
td-sidebar-link__section" id=m-datasetsdocsv1reference-docscommand-linedatasetsdownloadgenome><span>genome</span></a><ul class="ul-6 foldable"><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-datasetsdocsv1reference-docscommand-linedatasetsdownloadgenomedatasets_download_genome_accession-li><a href=/datasets/docs/v1/reference-docs/command-line/datasets/download/genome/datasets_download_genome_accession/ class="align-left ps-0 td-sidebar-link
td-sidebar-link__page" id=m-datasetsdocsv1reference-docscommand-linedatasetsdownloadgenomedatasets_download_genome_accession><span>accession</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-datasetsdocsv1reference-docscommand-linedatasetsdownloadgenomedatasets_download_genome_taxon-li><a href=/datasets/docs/v1/reference-docs/command-line/datasets/download/genome/datasets_download_genome_taxon/ class="align-left ps-0 td-sidebar-link
td-sidebar-link__page" id=m-datasetsdocsv1reference-docscommand-linedatasetsdownloadgenomedatasets_download_genome_taxon><span>taxon</span></a></li></ul></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section with-child collapse" id=m-datasetsdocsv1reference-docscommand-linedatasetsdownloadvirus-li><a href=/datasets/docs/v1/reference-docs/command-line/datasets/download/virus/ class="align-left ps-0 td-sidebar-link
td-sidebar-link__section" id=m-datasetsdocsv1reference-docscommand-linedatasetsdownloadvirus><span>virus</span></a><ul class="ul-6 foldable"><li class="td-sidebar-nav__section-title td-sidebar-nav__section with-child collapse" id=m-datasetsdocsv1reference-docscommand-linedatasetsdownloadvirusgenome-li><a href=/datasets/docs/v1/reference-docs/command-line/datasets/download/virus/genome/ class="align-left ps-0 td-sidebar-link
td-sidebar-link__section" id=m-datasetsdocsv1reference-docscommand-linedatasetsdownloadvirusgenome><span>genome</span></a><ul class="ul-7 foldable"><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-datasetsdocsv1reference-docscommand-linedatasetsdownloadvirusgenomedatasets_download_virus_genome_accession-li><a href=/datasets/docs/v1/reference-docs/command-line/datasets/download/virus/genome/datasets_download_virus_genome_accession/ class="align-left ps-0 td-sidebar-link
td-sidebar-link__page" id=m-datasetsdocsv1reference-docscommand-linedatasetsdownloadvirusgenomedatasets_download_virus_genome_accession><span>accession</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-datasetsdocsv1reference-docscommand-linedatasetsdownloadvirusgenomedatasets_download_virus_genome_taxon-li><a href=/datasets/docs/v1/reference-docs/command-line/datasets/download/virus/genome/datasets_download_virus_genome_taxon/ class="align-left ps-0 td-sidebar-link
td-sidebar-link__page" id=m-datasetsdocsv1reference-docscommand-linedatasetsdownloadvirusgenomedatasets_download_virus_genome_taxon><span>taxon</span></a></li></ul></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-datasetsdocsv1reference-docscommand-linedatasetsdownloadvirusdatasets_download_virus_protein-li><a href=/datasets/docs/v1/reference-docs/command-line/datasets/download/virus/datasets_download_virus_protein/ class="align-left ps-0 td-sidebar-link
td-sidebar-link__page" id=m-datasetsdocsv1reference-docscommand-linedatasetsdownloadvirusdatasets_download_virus_protein><span>protein</span></a></li></ul></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section with-child collapse" id=m-datasetsdocsv1reference-docscommand-linedatasetsdownloadortholog-li><a href=/datasets/docs/v1/reference-docs/command-line/datasets/download/ortholog/ class="align-left ps-0 td-sidebar-link
td-sidebar-link__section" id=m-datasetsdocsv1reference-docscommand-linedatasetsdownloadortholog><span>ortholog</span></a><ul class="ul-6 foldable"><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-datasetsdocsv1reference-docscommand-linedatasetsdownloadorthologdatasets_download_ortholog_gene-id-li><a href=/datasets/docs/v1/reference-docs/command-line/datasets/download/ortholog/datasets_download_ortholog_gene-id/ class="align-left ps-0 td-sidebar-link
td-sidebar-link__page" id=m-datasetsdocsv1reference-docscommand-linedatasetsdownloadorthologdatasets_download_ortholog_gene-id><span>gene-id</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-datasetsdocsv1reference-docscommand-linedatasetsdownloadorthologdatasets_download_ortholog_symbol-li><a href=/datasets/docs/v1/reference-docs/command-line/datasets/download/ortholog/datasets_download_ortholog_symbol/ class="align-left ps-0 td-sidebar-link
td-sidebar-link__page" id=m-datasetsdocsv1reference-docscommand-linedatasetsdownloadorthologdatasets_download_ortholog_symbol><span>symbol</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-datasetsdocsv1reference-docscommand-linedatasetsdownloadorthologdatasets_download_ortholog_accession-li><a href=/datasets/docs/v1/reference-docs/command-line/datasets/download/ortholog/datasets_download_ortholog_accession/ class="align-left ps-0 td-sidebar-link
td-sidebar-link__page" id=m-datasetsdocsv1reference-docscommand-linedatasetsdownloadorthologdatasets_download_ortholog_accession><span>accession</span></a></li></ul></li></ul></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-datasetsdocsv1reference-docscommand-linedatasetsdatasets_rehydrate-li><a href=/datasets/docs/v1/reference-docs/command-line/datasets/datasets_rehydrate/ class="align-left ps-0 td-sidebar-link
td-sidebar-link__page" id=m-datasetsdocsv1reference-docscommand-linedatasetsdatasets_rehydrate><span>rehydrate</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section with-child collapse" id=m-datasetsdocsv1reference-docscommand-linedatasetscompletion-li><a href=/datasets/docs/v1/reference-docs/command-line/datasets/completion/ class="align-left ps-0 td-sidebar-link
td-sidebar-link__section" id=m-datasetsdocsv1reference-docscommand-linedatasetscompletion><span>completion</span></a><ul class="ul-5 foldable"><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-datasetsdocsv1reference-docscommand-linedatasetscompletiondatasets_completion_bash-li><a href=/datasets/docs/v1/reference-docs/command-line/datasets/completion/datasets_completion_bash/ class="align-left ps-0 td-sidebar-link
td-sidebar-link__page" id=m-datasetsdocsv1reference-docscommand-linedatasetscompletiondatasets_completion_bash><span>bash</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-datasetsdocsv1reference-docscommand-linedatasetscompletiondatasets_completion_zsh-li><a href=/datasets/docs/v1/reference-docs/command-line/datasets/completion/datasets_completion_zsh/ class="align-left ps-0 td-sidebar-link
td-sidebar-link__page" id=m-datasetsdocsv1reference-docscommand-linedatasetscompletiondatasets_completion_zsh><span>zsh</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-datasetsdocsv1reference-docscommand-linedatasetscompletiondatasets_completion_fish-li><a href=/datasets/docs/v1/reference-docs/command-line/datasets/completion/datasets_completion_fish/ class="align-left ps-0 td-sidebar-link
td-sidebar-link__page" id=m-datasetsdocsv1reference-docscommand-linedatasetscompletiondatasets_completion_fish><span>fish</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-datasetsdocsv1reference-docscommand-linedatasetscompletiondatasets_completion_powershell-li><a href=/datasets/docs/v1/reference-docs/command-line/datasets/completion/datasets_completion_powershell/ class="align-left ps-0 td-sidebar-link
td-sidebar-link__page" id=m-datasetsdocsv1reference-docscommand-linedatasetscompletiondatasets_completion_powershell><span>powershell</span></a></li></ul></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-datasetsdocsv1reference-docscommand-linedatasetsdatasets_version-li><a href=/datasets/docs/v1/reference-docs/command-line/datasets/datasets_version/ class="align-left ps-0 td-sidebar-link
td-sidebar-link__page" id=m-datasetsdocsv1reference-docscommand-linedatasetsdatasets_version><span>version</span></a></li></ul></li></ul></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section with-child active-path" id=m-datasetsdocsv1reference-docsfile-formats-li><a href=/datasets/docs/v1/reference-docs/file-formats/ title="Annotation file formats" class="align-left ps-0 td-sidebar-link
td-sidebar-link__section" id=m-datasetsdocsv1reference-docsfile-formats><span>File formats</span></a><ul class="ul-3 foldable"><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-datasetsdocsv1reference-docsfile-formatsabout-ncbi-gbff-li><a href=/datasets/docs/v1/reference-docs/file-formats/about-ncbi-gbff/ title="GBFF format" class="align-left ps-0 td-sidebar-link
td-sidebar-link__page" id=m-datasetsdocsv1reference-docsfile-formatsabout-ncbi-gbff><span>GBFF</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child active-path" id=m-datasetsdocsv1reference-docsfile-formatsabout-ncbi-gff3-li><a href=/datasets/docs/v1/reference-docs/file-formats/about-ncbi-gff3/ title="GFF3 format" class="align-left ps-0 active td-sidebar-link
td-sidebar-link__page" id=m-datasetsdocsv1reference-docsfile-formatsabout-ncbi-gff3><span class=td-sidebar-nav-active-item>GFF3</span></a></li></ul></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section with-child" id=m-datasetsdocsv1reference-docsdata-reports-li><a href=/datasets/docs/v1/reference-docs/data-reports/ class="align-left ps-0 td-sidebar-link
td-sidebar-link__section" id=m-datasetsdocsv1reference-docsdata-reports><span>Report schemas</span></a><ul class="ul-3 foldable"><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-datasetsdocsv1reference-docsdata-reportsgene-li><a href=/datasets/docs/v1/reference-docs/data-reports/gene/ title="Gene report" class="align-left ps-0 td-sidebar-link
td-sidebar-link__page" id=m-datasetsdocsv1reference-docsdata-reportsgene><span>Gene</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-datasetsdocsv1reference-docsdata-reportsgenome-assembly-li><a href=/datasets/docs/v1/reference-docs/data-reports/genome-assembly/ title="Genome assembly report" class="align-left ps-0 td-sidebar-link
td-sidebar-link__page" id=m-datasetsdocsv1reference-docsdata-reportsgenome-assembly><span>Genome assembly</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-datasetsdocsv1reference-docsdata-reportsgenome-sequence-li><a href=/datasets/docs/v1/reference-docs/data-reports/genome-sequence/ title="Genome sequence report" class="align-left ps-0 td-sidebar-link
td-sidebar-link__page" id=m-datasetsdocsv1reference-docsdata-reportsgenome-sequence><span>Genome sequence</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-datasetsdocsv1reference-docsdata-reportsmicrobigge-li><a href=/datasets/docs/v1/reference-docs/data-reports/microbigge/ title="MicroBIGG-E report" class="align-left ps-0 td-sidebar-link
td-sidebar-link__page" id=m-datasetsdocsv1reference-docsdata-reportsmicrobigge><span>MicroBIGG-E</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-datasetsdocsv1reference-docsdata-reportsprokaryote-gene-li><a href=/datasets/docs/v1/reference-docs/data-reports/prokaryote-gene/ title="Prokaryote gene report" class="align-left ps-0 td-sidebar-link
td-sidebar-link__page" id=m-datasetsdocsv1reference-docsdata-reportsprokaryote-gene><span>Prok. gene</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-datasetsdocsv1reference-docsdata-reportsprokaryote-gene-location-li><a href=/datasets/docs/v1/reference-docs/data-reports/prokaryote-gene-location/ title="Prokaryote gene location report" class="align-left ps-0 td-sidebar-link
td-sidebar-link__page" id=m-datasetsdocsv1reference-docsdata-reportsprokaryote-gene-location><span>Prok. gene location</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-datasetsdocsv1reference-docsdata-reportsvirus-li><a href=/datasets/docs/v1/reference-docs/data-reports/virus/ title="Virus report" class="align-left ps-0 td-sidebar-link
td-sidebar-link__page" id=m-datasetsdocsv1reference-docsdata-reportsvirus><span>Virus</span></a></li></ul></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section with-child" id=m-datasetsdocsv1reference-docsdata-packages-li><a href=/datasets/docs/v1/reference-docs/data-packages/ class="align-left ps-0 td-sidebar-link
td-sidebar-link__section" id=m-datasetsdocsv1reference-docsdata-packages><span>Data packages</span></a><ul class="ul-3 foldable"><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-datasetsdocsv1reference-docsdata-packagesgene-package-li><a href=/datasets/docs/v1/reference-docs/data-packages/gene-package/ title="NCBI Datasets Gene Package" class="align-left ps-0 td-sidebar-link
td-sidebar-link__page" id=m-datasetsdocsv1reference-docsdata-packagesgene-package><span>Gene package</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-datasetsdocsv1reference-docsdata-packagesgenome-li><a href=/datasets/docs/v1/reference-docs/data-packages/genome/ title="NCBI Datasets Genome Package" class="align-left ps-0 td-sidebar-link
td-sidebar-link__page" id=m-datasetsdocsv1reference-docsdata-packagesgenome><span>Genome package</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-datasetsdocsv1reference-docsdata-packagessars-cov-2-genome-li><a href=/datasets/docs/v1/reference-docs/data-packages/sars-cov-2-genome/ title="NCBI Datasets SARS-CoV-2 Data Package" class="align-left ps-0 td-sidebar-link
td-sidebar-link__page" id=m-datasetsdocsv1reference-docsdata-packagessars-cov-2-genome><span>SARS-CoV-2 data package</span></a></li></ul></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-datasetsdocsv1reference-docsgca-and-gcf-explained-li><a href=/datasets/docs/v1/reference-docs/gca-and-gcf-explained/ title="GenBank (GCA) and RefSeq (GCF) genome assemblies" class="align-left ps-0 td-sidebar-link
td-sidebar-link__page" id=m-datasetsdocsv1reference-docsgca-and-gcf-explained><span>GCA and GCF genomes</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-datasetsdocsv1reference-docsjq-cheatsheet-li><a href=/datasets/docs/v1/reference-docs/jq-cheatsheet/ title="jq cheatsheet for genome metadata" class="align-left ps-0 td-sidebar-link
td-sidebar-link__page" id=m-datasetsdocsv1reference-docsjq-cheatsheet><span>jq cheatsheet</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section with-child" id=m-datasetsdocsv1reference-docsrest-api-li><a href=/datasets/docs/v1/reference-docs/rest-api/ title="NCBI Datasets v1 REST API" class="align-left ps-0 td-sidebar-link
td-sidebar-link__section" id=m-datasetsdocsv1reference-docsrest-api><span>REST API</span></a><ul class="ul-3 foldable"><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-datasetsdocsv1reference-docsrest-apiauthentication-li><a href=/datasets/docs/v1/reference-docs/rest-api/authentication/ class="align-left ps-0 td-sidebar-link
td-sidebar-link__page" id=m-datasetsdocsv1reference-docsrest-apiauthentication><span>Authentication</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-datasetsdocsv1reference-docsrest-apideprecated_apis-li><a href=/datasets/docs/v1/reference-docs/rest-api/deprecated_apis/ title="Retired API Endpoints" class="align-left ps-0 td-sidebar-link
td-sidebar-link__page" id=m-datasetsdocsv1reference-docsrest-apideprecated_apis><span>Retired Endpoints</span></a></li></ul></li></ul></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section with-child" id=m-datasetsdocsv1troubleshooting-li><a href=/datasets/docs/v1/troubleshooting/ class="align-left ps-0 td-sidebar-link
td-sidebar-link__section" id=m-datasetsdocsv1troubleshooting><span>FAQs and troubleshooting</span></a><ul class="ul-2 foldable"><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-datasetsdocsv1troubleshootingfaq-li><a href=/datasets/docs/v1/troubleshooting/faq/ title=FAQs class="align-left ps-0 td-sidebar-link
td-sidebar-link__page" id=m-datasetsdocsv1troubleshootingfaq><span>Frequently asked Questions</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-datasetsdocsv1troubleshootingmac-zip-bug-li><a href=/datasets/docs/v1/troubleshooting/mac-zip-bug/ title="Mac Safari zip archive bug" class="align-left ps-0 td-sidebar-link
td-sidebar-link__page" id=m-datasetsdocsv1troubleshootingmac-zip-bug><span>Mac zip bug</span></a></li></ul></li></ul></li></ul></nav><script src=/datasets/docs/v1/js/sidebar-tree.js></script><div id=doc-version-selector-container><div>Documentation version</div><select><option value=v1>CLI v13.x (API v1)</option><option value=v2>CLI v16+ (API v2)</option></select>
<a href=/datasets/docs/v2/troubleshooting/faq/#which-version-of-the-documentation-should-i-use>Learn more</a></div></div></div><div class="d-none d-xl-block col-xl-2 td-sidebar-toc d-print-none"><div class=td-toc><nav id=TableOfContents><ul><li><a href=#directives>Directives</a><ul><li><a href=#official-directives>Official directives</a></li><li><a href=#unofficial-directives>Unofficial directives</a></li></ul></li><li><a href=#column-specifications>Column Specifications</a></li><li><a href=#attribute-specifications>Attribute Specifications</a><ul><li><a href=#official-gff3-attributes>Official GFF3 attributes</a></li><li><a href=#unofficial-attributes>Unofficial attributes</a></li></ul></li><li><a href=#annotation-data-model>Annotation Data Model</a></li><li><a href=#additional-details>Additional Details</a><ul><li><a href=#the-source-region-feature>The source &lsquo;region&rsquo; feature</a></li><li><a href=#utrs>UTRs</a></li><li><a href=#start-and-stop-codons>Start and stop codons</a></li><li><a href=#origin-spanning-features>Origin-spanning features</a></li><li><a href=#annotation-accommodations-for-putative-assembly-errors>Annotation accommodations for putative assembly errors</a></li><li><a href=#ribosomal-slippage>Ribosomal slippage</a></li></ul></li><li><a href=#alignments>Alignments</a><ul><li><a href=#official-gff3-attributes-1>Official GFF3 attributes</a></li><li><a href=#unofficial-attributes-1>Unofficial attributes</a></li></ul></li></ul></nav></div></div><main class="col-12 col-md-9 col-xl-8 pl-md-5" role=main><div id=possible-banner></div><div class=watermarked data-watermark=" Retired "></div><nav aria-label=breadcrumb class=d-print-none><ol class="breadcrumb spb-1"><li class=breadcrumb-item><a href=/datasets/docs/v1/>Documentation</a></li><li class=breadcrumb-item><a href=/datasets/docs/v1/reference-docs/>Reference</a></li><li class=breadcrumb-item><a href=/datasets/docs/v1/reference-docs/file-formats/>File formats</a></li><li class="breadcrumb-item active" aria-current=page><a href=/datasets/docs/v1/reference-docs/file-formats/about-ncbi-gff3/>GFF3</a></li></ol></nav><h1 class="mb-4 font-weight-bold">GFF3 format</h1><p class="lead pb-2">Supports all annotated assemblies</p><div class="d-xl-none td-toc td-toc--inline d-print-none"><a id=td-content__toc-link href=#td-content__toc data-toggle=collapse aria-controls=td-docs-toc aria-expanded=false aria-label="Toggle toc navigation"><span class=lead>Contents<i class="fas fa-chevron-right ml-2"></i></span></a><div id=td-content__toc class=collapse><nav id=TableOfContents><ul><li><a href=#directives>Directives</a><ul><li><a href=#official-directives>Official directives</a></li><li><a href=#unofficial-directives>Unofficial directives</a></li></ul></li><li><a href=#column-specifications>Column Specifications</a></li><li><a href=#attribute-specifications>Attribute Specifications</a><ul><li><a href=#official-gff3-attributes>Official GFF3 attributes</a></li><li><a href=#unofficial-attributes>Unofficial attributes</a></li></ul></li><li><a href=#annotation-data-model>Annotation Data Model</a></li><li><a href=#additional-details>Additional Details</a><ul><li><a href=#the-source-region-feature>The source &lsquo;region&rsquo; feature</a></li><li><a href=#utrs>UTRs</a></li><li><a href=#start-and-stop-codons>Start and stop codons</a></li><li><a href=#origin-spanning-features>Origin-spanning features</a></li><li><a href=#annotation-accommodations-for-putative-assembly-errors>Annotation accommodations for putative assembly errors</a></li><li><a href=#ribosomal-slippage>Ribosomal slippage</a></li></ul></li><li><a href=#alignments>Alignments</a><ul><li><a href=#official-gff3-attributes-1>Official GFF3 attributes</a></li><li><a href=#unofficial-attributes-1>Unofficial attributes</a></li></ul></li></ul></nav></div><button id=td-content__toc-link-expanded href=#td-content__toc class="btn btn-small ml-1 my-2 py-0 px-3" data-toggle=collapse aria-controls=td-docs-toc aria-expanded=true aria-label="Toggle toc navigation"></button></div><style>.td-content table{border:1px solid #ccc}@media screen and (min-width:600px){.td-content table{display:table}}@media screen and (max-width:400px){.td-content table td{white-space:nowrap!important}}.td-content table th{white-space:nowrap}summary>h3{display:inline-block}</style><div class=td-content><h1>GFF3 format</h1><div class=lead>Supports all annotated assemblies</div><header class=article-meta></header><p>Genome annotation files are provided in GFF3 format for all annotated assemblies included in NCBI&rsquo;s Genomes FTP resource.
GFF3 files are formatted according to the <a href=https://github.com/The-Sequence-Ontology/Specifications/blob/master/gff3.md target=_blank>specifications</a>
published by the Sequence Ontology.</p><p>NCBI&rsquo;s GFF3 files differ from the official GFF3 specifications for certain attributes and formatting details.</p><h2 id=directives>Directives</h2><h3 id=official-directives>Official directives</h3><p>The following directives or pragmas are provided according to the GFF3
specifications:</p><p><strong>##gff-version</strong></p><p><strong>##sequence-region</strong></p><p><strong>##species</strong></p><h3 id=unofficial-directives>Unofficial directives</h3><p>The following directives are not part of the official GFF3 specifications and
have been proposed or are provided as additional information to aid in
parsing the files. They are indicated by a leading &lsquo;#!&rsquo;.</p><p><strong>#!gff-spec-version</strong>
specific version of the GFF3 specification that the files conform to</p><p><strong>#!processor</strong>
NCBI application used to generate the files</p><p><strong>#!genome-build</strong>
Assembly name, if the set of seqids included in the file correspond to a
specific genome assembly</p><p><strong>#!genome-build-accession</strong>
Assembly accession.version as defined in NCBI&rsquo;s Assembly resource. This is
a stable, unique identifier for the set of sequence records included in an
assembly as found in INSDC or RefSeq, and it is highly recommended to use
the assembly accession.version in addition to or instead of the assembly
name to ensure consistency in datasets.</p><p><strong>#!annotation-date</strong>
Date the annotation was produced, if available</p><p><strong>#!annotation-source</strong>
Source and name to use for the annotation, if available</p><h2 id=column-specifications>Column Specifications</h2><p><strong>Column 1: &ldquo;seqid&rdquo;</strong>
Accession.version of the annotated genomic sequence.
NCBI files universally use accession.version because it provides an
unambiguous identifier for the annotated sequence, and does not require
additional knowledge of the species, assembly and version, and data source.
We strongly recommend using accession.version instead of ambiguous seqids
such as &lsquo;chr1&rsquo; to avoid errors due to mis-associating features with the
wrong genomic location.</p><p><strong>Column 2: &ldquo;source&rdquo;</strong>
For annotations produced by one of NCBI&rsquo;s pipelines, the method used to
generate the annotation is provided in column 2. The method is found in the
ModelEvidence object in ASN.1 format, and appears in the flatfile format as
a structured note. For example:
&ldquo;Derived by automated computational analysis using gene prediction method:
BestRefSeq&rdquo;</p><p>The reported methods for RefSeq eukaryotic annotations include:</p><p><em>BestRefSeq:</em> feature projected from the alignment of a &ldquo;known&rdquo; RefSeq transcript to the genome</p><p><em>Curated Genomic:</em> feature projected from the alignment of a curated RefSeq genomic sequence to the genome</p><p><em>Gnomon:</em> feature predicted by Gnomon, using transcript and protein evidence and/or ab initio</p><p><em>BestRefSeq,Gnomon:</em> gene with children features predicted by BestRefSeq and Gnomon</p><p><em>Curated Genomic,Gnomon:</em> gene with children features predicted Curated Genomic or Gnomon</p><p><em>tRNAscan-SE:</em> feature predicted by tRNAscan-SE</p><p>The reported methods for RefSeq prokaryotic annotations include:</p><p><em>GeneMarkS+:</em> feature predicted by GeneMarkS+</p><p><em>Protein Homology:</em> feature predicted by protein alignment</p><p><em>cmsearch:</em> feature predicted by cmsearch</p><p><em>tRNAscan-SE:</em> feature predicted by tRNAscan-SE</p><p>If the annotation method is not available, the source column is based on the
source database for the record (RefSeq, GenBank, EMBL, DDBJ).</p><p><strong>Column 3: &ldquo;type&rdquo;</strong>
The SOFA feature type most equivalent to the feature found in the source
annotation. The original GenBank feature type is also provided by the &ldquo;gbkey&rdquo;
attribute in column 9.</p><p><strong>Columns 4 & 5: &ldquo;start&rdquo; and &ldquo;end&rdquo;</strong>
Start and end coordinates of the feature in 1-based coordinates. Note two
exon or CDS rows of the same feature may overlap or be separated by an
artificial &ldquo;micro-intron&rdquo; in order to represent cases of ribosomal slippage
or putative assembly errors. See Additional Details below for more
information.</p><p><strong>Column 6: &ldquo;score&rdquo;</strong>
Currently only provided for alignments, if they contain a score named
&ldquo;score&rdquo;. The definition of this score may vary depending on the type of
alignment.</p><p><strong>Column 7: &ldquo;strand&rdquo;</strong>
The strand of the feature</p><p><strong>Column 8: &ldquo;phase&rdquo;</strong>
The phase of the CDS feature, which is related to /codon_start in the
flatfile specification. The phase is computed based on the known phase at
the start of the CDS and computed for subsequent CDS rows. It may not be
accurate if the CDS contains internal frameshifts, which can occur in
pseudogenes and in genomes with indels, assembly gaps, and other errors.
See Additional Details below for more information.</p><p><strong>Column 9: &ldquo;attributes&rdquo;</strong>
A semicolon delimited list of official and additional attributes describing
the feature.</p><h2 id=attribute-specifications>Attribute Specifications</h2><p>Attributes in column 9 conform to the GFF3 specification, which uses a starting
Capital letter for official attributes and starting lower-case letter for other
attributes.</p><h3 id=official-gff3-attributes>Official GFF3 attributes</h3><p><strong>ID</strong>
A unique identifier for the feature. Most IDs are generated on-the-fly
during file generation. They are not intended to be used as stable feature
identifiers, and they are likely to change between annotation versions.
Multiple rows with the same ID designate a single feature that is
composed of multiple parts, most common for CDSes and multi-exon alignments
but possible for other feature types as well. Note other attributes such as
gene symbols, GeneIDs, and transcript or protein accessions may occur on
multiple features, whereas the ID is globally unique for an individual file.</p><p><strong>Parent</strong>
ID of the parent of the feature</p><p><strong>Dbxref</strong>
A set of comma-separated tag:ID pairs corresponding to the /db_xref
qualifiers provided in the source annotation. Note that database IDs can contain
colons, so a format such as &ldquo;HGNC:HGNC:1100&rdquo; is expected and should be
parsed on the first colon. See NCBI&rsquo;s <a href=https://www.ncbi.nlm.nih.gov/genbank/collab/db_xref target=_blank>documentation on the db_xref qualifier</a>
for more details, including URLs corresponding to specific database tags.</p><p>Most Dbxref tags known to NCBI are also available in the <a href=http://amigo.geneontology.org/xrefs target=_blank>list</a>
provided by
the <a href=http://geneontology.org/ target=_blank>Gene Ontology Consortium</a>
.</p><p><strong>Name</strong>
A suggested display name for the feature, currently populated for specific
features:
region &ldquo;landmark&rdquo; feature &ndash; chromosome or linkage group, if available
gene &ndash; gene symbol or locus_tag
RNA (multiple types) and CDS &ndash; product accession.version (if exists)</p><p><strong>Note</strong>
feature comment. This appears as a /note qualifier in the GenBank format.
Additional text may appear in the flatfile /note that internally is not part
of a comment, and is not included in the GFF3 Note attribute.</p><p><strong>Is_circular</strong>
provided on the landmark &ldquo;region&rdquo; feature as &lsquo;Is_circular=true&rsquo; if the record
is annotated to be a circular chromosome.</p><h3 id=unofficial-attributes>Unofficial attributes</h3><p>This section describes the unofficial attributes that are the most informative for interpreting NCBI&rsquo;s GFF3 files. Many of the unofficial attributes correspond to qualifiers that are described for the [GenBank flatfile format](<a href=http://www.insdc.org/files/feature_table.html#7.2%5D(http://www.insdc.org/files/feature_table.html#7.2)>http://www.insdc.org/files/feature_table.html#7.2](http://www.insdc.org/files/feature_table.html#7.2)</a></p><p><strong>anticodon</strong>
Position of the anticodon on the seq-id for a tRNA feature</p><p><strong>description</strong>
The gene full name, corresponding to /gene_desc in the flatfile format.</p><p><strong>exception</strong>
indicates that the transcription or translation product of the feature as
derived from the annotated sequence does not match the sequence of the
product. There are several common usages in annotations from the RefSeq
eukaryotic genome annotation pipeline (e.g. RefSeq annotation for human):</p><ol><li>features corresponding to known RefSeq transcripts (NM_) or proteins (NP_)
that have mismatches, indels, or additional sequence compared to the
genome. These use the &ldquo;exception=annotated by transcript or
proteomic data&rdquo;.</li><li>features corresponding to model RefSeq transcripts (XM_) or proteins (XP_)
that have additional sequence compared to the genome. These use
&ldquo;exception=annotated by transcript or proteomic data&rdquo;.</li><li>features corresponding to model RefSeq transcripts (XM_) or proteins (XP_)
annotated as having indels compared to the genome. These use
&ldquo;exception=unclassified transcription discrepancy&rdquo; or
&ldquo;exception=unclassified translation discrepancy&rdquo;.</li><li>features that undergo programmed genomic rearrangements in order to
generate a functional transcript and protein product. These use
&ldquo;exception=rearrangement required for product&rdquo;.</li><li>CDS features that undergo +1 or -1 translation frameshifts (aka ribosomal
slippage) use &ldquo;exception=ribosomal slippage&rdquo;. See Additional Details for
more information.</li></ol><p>These and other exceptions may also appear in INSDC annotations, with
similar meanings.</p><p><strong>exon_number</strong>
The GFF3 specification does not include explicit numbering of exons, as is
sometimes found in GTF files. Occasionally an exon_number attribute is
present on exon features that are annotated separately from an RNA feature.
Exon features that are children of mRNA or other transcript features do not
include an explicit exon_number attribute, and their relative order should be
inferred from the order on the genome.</p><p><strong>gbkey</strong>
The original GenBank feature type, before conversion into the SOFA type
indicated in column 3. INSDC describes <a href=http://www.insdc.org/files/feature_table.html#7.2 target=_blank>feature keys</a>
in the DDBJ/ENA/GenBank Feature Table Definition.</p><p><strong>gene</strong>
The primary gene symbol.</p><p><strong>gene_biotype</strong>
Attribute computed on gene features based on the set of child features to
indicate the overall biotype for the gene annotation at this location.
This attribute was introduced in June 2015, and is not present in older
files. Values are:</p><p><em>protein_coding:</em> gene has at least one CDS feature, and is not a Ig/TCR segment or pseudogene</p><p><em>V_region, V_segment, D_segment, J_segment, C_region, tRNA, rRNA, snRNA, snoRNA, tmRNA, miscRNA:</em> gene has one or more of the child features, and no other type, and is not a pseudogene</p><p><em>V_region_pseudogene, etc:</em> same as above, but the gene is marked as a pseudogene</p><p><em>transcribed_pseudogene:</em> only has miscRNA child feature(s) marked as pseudogene</p><p><em>lncRNA, and additional ncRNA classes:</em> gene has one or more child ncRNA features of a single ncRNA_class. If ncRNA_class=&ldquo;other&rdquo;, then the gene_biotype=ncRNA. INSDC provides a <a href=http://www.insdc.org/rna_vocab.html target=_blank>controlled vocabulary for ncRNA classes</a>
.</p><p><em>miRNA:</em> a gene with only miRNA child features, or both miRNA and precursor_RNA</p><p><em>segment:</em> gene has a CDS with a &ldquo;rearrangment required for product&rdquo; exception, no specific region or segment feature, and is not a pseudogene</p><p><em>segment_pseudogene:</em> same as segment, but is a pseudogene</p><p><em>pseudogene:</em> marked as a pseudogene, but does not meet any of the more specific criteria above.</p><p><em>other:</em> rare cases where gene does not meet any of the above criteria. For
example, a partial gene with only mRNA and no CDS child feature(s) is
sometimes annotated by RefSeq to represent a location that contains
only 5' or 3' UTR, or a gene feature that is not marked as a pseudogene
but has no child features.</p><p>Note: There may be multiple gene features on a single assembly annotated
with the same GeneID dbxref because they are considered to be different
parts or alleles of the same gene. In these cases, it&rsquo;s possible for the
gene features to be annotated with different gene_biotype values, such as
protein_coding and transcribed_pseudogene or protein_coding and other.</p><p><strong>gene_synonym</strong>
One or more additional synonyms for gene symbol.</p><p><strong>locus_tag</strong>
locus_tag is intended to be a unique value on each gene feature, and is
also propagated to child features. In some cases it may not be unique because
of errors in data files. Annotations from the RefSeq eukaryotic annotation
pipeline do not use locus_tag.</p><p><strong>ncrna_class</strong>
An additional qualifier provided on ncRNA features to indicate a specific
feature subtype, such as miRNA or lncRNA. INSDC provides a <a href=http://www.insdc.org/rna_vocab.html target=_blank>controlled vocabulary for ncRNA classes</a>
.</p><p><strong>part</strong>
A proposed attribute for the official GFF3 specification that has not yet
been finalized. Indicates the order in which multiple rows for the same ID
should be joined, using the format &ldquo;part=X/Y&rdquo;, where X is the row order and
Y is the total number of rows. Only found on some types of features such as
genes that are rarely represented as more than one range.</p><p><strong>partial</strong>
Indicates that the feature is considered to be partial, either internally or
at one or both ends. The start_range and end_range attributes indicate which
end of an interval is partial. The partial attribute always appears with the
value &lsquo;true&rsquo; (i.e. partial=true).</p><p><strong>product</strong>
Name of the transcript or protein product, corresponding to /product in the
GenBank flatfile format.</p><p><strong>protein_id</strong>
Accession.version of the product record for the protein feature, if one
exists.</p><p><strong>pseudo</strong>
The feature, or its parent, is annotated as a non-functional version. If
present, it is always provided with the value &lsquo;true&rsquo; (i.e. pseudo=true).</p><p><strong>pseudogene</strong>
A more specific attribute indicating the feature is considered to be a
pseudogene. INSDC provides a <a href=http://www.insdc.org/documents/pseudogene-qualifier-vocabulary target=_blank>controlled vocabulary for the pseudogene qualifier</a>
.</p><p><strong>start_range</strong></p><p><strong>end_range</strong></p><p>Attributes adapted from GVF to indicate partial feature boundaries. The value
is two integers (or a &lsquo;.&rsquo; for an unknown value) separated by a comma, where
the two values indicate the range of ambiguity for that boundary. The
start_range attribute applies to column 4, and end_range applies to column 5.
If a &lsquo;.&rsquo; is used for the outer range value, as is always the case in NCBI&rsquo;s
current files, then presence of a start_range attribute can simply be
interpreted as column 4 is partial, and an end_range attribute as column 5
is partial, regardless of strand, without further analysis of the tag value.
Further details about the attributes are available in the <a href=https://github.com/The-Sequence-Ontology/Specifications/blob/master/gvf.md target=_blank>GVF specifications</a>
provided by the Sequence Ontology.</p><p><strong>transcript_id</strong>
Accession.version of the product record for the transcript feature, if one
exists.</p><p><strong>transl_except</strong>
One or more translation exceptions, found on CDS features. These indicate
codons on the genome (in coordinates corresponding to the column 1 seq-id)
that should be considered to be translated as a different amino acid than
expected by the codon sequence and translation table for this organism. The
format corresponds to that used in the flatfile format, with some encoded
characters. For example:
transl_except=(pos:25802093..25802095%2Caa:OTHER)
means the codon at the indicated position should be translated as &ldquo;X&rdquo;,
typically instead of a stop codon.</p><h2 id=annotation-data-model>Annotation Data Model</h2><p>The annotation in GFF3 format reflects the annotation in the source GenBank or
RefSeq records, adapted according to the GFF3 specifications. Thus, the data
model may vary depending on what information was provided by the annotation
submitter. Annotations in RefSeq are more standardized through the use of
NCBI&rsquo;s own annotation pipelines or additional cleanup steps applied when
propagating INSDC submitted annotation into RefSeq records.</p><p>In general, annotations conform to the central dogma of gene-mRNA-CDS, or
gene-RNA for non-coding genes, with some exceptions:</p><p>Protein-coding gene annotations in prokaryotes, organelles, and some
eukaryote records lack mRNA features in INSDC and RefSeq annotations, and
therefore lack mRNA features in the GFF3 files, as allowed by the GFF3
specifications. See &ldquo;NOTE 2&rdquo; in the GFF3 specifications for more details.</p><p>Gene segment annotations for immunoglobulin and T-cell receptor genes that
undergo genomic rearrangements are commonly represented by gene,
C/V/D/J_gene_segment, and CDS features corresponding to individual segments
of the overall gene. The C/V/D/J_gene_segment feature with one or more child
exon features can be treated similar to a transcript feature. Currently, the
CDS features for gene segments use the Gene feature as the Parent.</p><p>Some pseudogene annotations are represented by a CDS feature with no
corresponding mRNA Parent feature.</p><p>Some RNA annotations, especially tRNAs, may not have a corresponding Gene
parent. This is more common in older annotation submissions.</p><p><a href=https://www.ncbi.nlm.nih.gov/genome/annotation_euk/all/ target=_blank>RefSeq annotations</a>
from NCBI&rsquo;s eukaryotic genome annotation pipeline include
additional conventions that may be relevant for processing.</p><p>Notable conventions used in RefSeq annotations from NCBI&rsquo;s eukaryotic genome
annotation pipeline are:</p><p>Transcribed genes, both protein-coding and non-coding, may be annotated with
multiple transcript variants and protein isoforms. A single gene may have
both &ldquo;known&rdquo; (NM/NR/NP) and &ldquo;model&rdquo; (XM/XR/XP) RefSeq products. Known RefSeqs
are created both through curation done at NCBI, and automated processes
using annotated INSDC sequences, whereas model RefSeqs are created by
automated processes primarily based on alignment evidence supplemented with
ab initio prediction.</p><p>A protein-coding gene may have both coding and non-coding transcript child
features. Coding transcripts are represented by mRNA-exon-CDS features, and
non-coding transcripts are represented by transcript-exon features.</p><p>Non-transcribed pseudogenes are annotated with a gene feature, and may have
child exon features if sufficient evidence was available to define the pseudo
exon structure. No mRNA or CDS feature is annotated because the gene is
thought to not produce an RNA or protein.</p><p>Transcribed pseudogenes are annotated with a gene feature and one or more
transcript-exon features.</p><p>MicroRNAs are annotated as gene-primary_transcript-exon features based on
the stem-loop sequence identified by miRBase. Additional ncRNA child
features with the attribute ncrna_class=miRNA are annotated to represent the
mature miRNA products. The miRNA features currently have the Gene feature as
the parent.</p><p>Additional non-coding transcripts are annotated as ncRNA, rRNA, or tRNA
features with one or more exon child features.</p><p>Both &ldquo;known&rdquo; (NM/NR/NP) and &ldquo;model&rdquo; (XM/XR/XP) RefSeq transcript and protein
products may have differences (mismatches or indels) or additional sequence
compared to the sequence of the corresponding genome feature. These differences
are conveyed in several ways:</p><p>A Note describing the differences is provided on the affected transcript or
CDS feature.</p><p>For RefSeqs with indels or additional 5' or internal sequence, an alignment
between the transcript and genome is provided that can be used to map
between genome, transcript, and protein coordinates. These alignments are
found at the end of each seq-id. See below for details on the alignment
format specifications.</p><p>More recent GFF files under the /genomes/&lt;genus_species> FTP path incorporate
the use of short overlaps or micro-introns to adjust the annotated feature
for insertions or deletions in the coding region compared to the RefSeq
product. See Additional Details below for more information.</p><p>For CDS features with internal stop codons compared to the RefSeq product,
a transl_except attribute is provided to indicate the location of the stop
codon, and the amino acid that is thought to be encoded at that position.
Model RefSeqs use aa:OTHER to indicate the stop codon in the genome may be
in error, but the correct sequence is unknown. Known RefSeqs may also use
aa:OTHER in older files (fixed in mid 2015). The transl_except attribute is
also used to indicate stop codons in the genome that are naturally translated
as selenocysteine (Sec).</p><p>RefSeqs with additional sequence that does not align to the genome, with the
exception of 3' polyA tails and very short unaligned 5' sequence, are
annotated with partial features. This markup includes a partial=true
attribute on all rows of the affected feature, and a start_range and/or
end_range attribute on the specific rows that are marked as partial (see
above for a description of start_range/end_range). The most common partial
markup is for the 5'-most or 3'-most end of the mRNA and CDS to be marked
as partial, but it is also possible for internal sequence to be missing, in
which case internal exon and CDS rows will be marked with start_range or
end_range.</p><h2 id=additional-details>Additional Details</h2><h3 id=the-source-region-feature>The source &lsquo;region&rsquo; feature</h3><p>The first feature row for every seqid is a &ldquo;region&rdquo; feature spanning the
entire range of the sequence, and corresponds to the &ldquo;source feature&rdquo; that
appears in the GenBank flatfile format. It can be identified by the
&ldquo;gbkey=Src&rdquo; attribute, and can function as the landmark feature that is used
by some software but is not well defined in the current GFF3 specifications.
It contains many qualifiers with information about the source of the record.
These include:</p><p><strong>Name</strong>
Currently set to the source chromosome value, if known. The value chosen for
Name may be revised in the future to better address requirements for some
software.</p><p><strong>chromosome</strong>
The chromosome of the record, if one is assigned. Note some scaffolds may be
assigned to a specific chromosome even if they are not part of a single
record for that chromosome (&ldquo;unlocalized scaffolds&rdquo;).</p><p><strong>Is_circular</strong>
see official GFF3 attributes above</p><p><strong>genome</strong>
The genome source of the record, corresponding to &ldquo;source genome <value>&rdquo; in
the ASN.1 specification, and indexed as &ldquo;gene in <value>[properties]&rdquo; in the
Entrez nucleotide indexing system.</p><p><strong>linkage-group</strong>
The linkage group of the record, if one is assigned. Similar to chromosome.</p><p><strong>mol_type</strong>
The molecule type of the record, such as &ldquo;genomic DNA&rdquo; or &ldquo;mRNA&rdquo;</p><p><strong>transl_table</strong>
The genetic code table to use for translation of CDS features, if other than
the universal table. INSDC provides a <a href=http://www.insdc.org/files/feature_table.html#7.4.5 target=_blank>controlled vocabulary for genetic code tables</a>
.</p><h3 id=utrs>UTRs</h3><p>5' and 3' UTR features for mRNAs are not explicitly annotated, but can be
inferred from the difference between the child exon and CDS features. For
applications that require explicit five_prime_UTR and three_prime_UTR features, NCBI provides
a <a href=https://ftp.ncbi.nlm.nih.gov/genomes/TOOLS/add_utrs_to_gff/ target=_blank>Python script</a>
to add UTR features.</p><h3 id=start-and-stop-codons>Start and stop codons</h3><p>start_codon and stop_codon features are not explicitly annotated, but can be
inferred from the beginning and end of the CDS feature, if that CDS feature is
not partial on the end in question. Partialness is represented by start_range
and end_range attributes in NCBI&rsquo;s GFF3 files, using a format adapted from GVF.</p><p>More specifically:</p><ol><li><p>the CDS is 5' partial and does not include a start codon if:
a) the first CDS row is on the + strand and has a start_range=.,### attribute.
b) the first CDS row is on the - strand and has an end_range=###,. attribute.</p></li><li><p>the CDS is 3' partial and does not include a stop codon if:
a) the last CDS row is on the + strand and has an end_range=###,. attribute.
b) the last CDS row is on the - strand and has a start_range=.,### attribute.</p></li></ol><p>If those conditions are not met, then you can infer the start_codon and
stop_codon position from the first or last 3 bp of the CDS feature.</p><h3 id=origin-spanning-features>Origin-spanning features</h3><p>If an interval (an individual row) spans the origin of a circular sequence, the
column 5 coordinate is extended into virtual space. This means that a parent
feature may be extended into virtual space, but its child features are not, and
some child features may not fall within the span of the parent. For example:</p><p>A simple case, with single interval gene and CDS features that both span the
origin:</p><pre><code>##sequence-region NC_005213.1 1 490885
NC_005213.1 RefSeq gene 490883 491764 . - . ID=gene1
NC_005213.1 RefSeq CDS 490883 491764 . - 0 ID=cds0;;Parent=gene1
</code></pre><p>A complex multi-exon case, where the gene and mRNA features span the origin, but
none of the individual exon or CDS rows span the origin. Note the exon and CDS
at 959..966(-) that do not fall within the span of the Parent mRNA:</p><pre><code>##sequence-region NC_004367.1 1 149696
NC_004367.1 RefSeq gene 138637 150662 . - . ID=gene0
NC_004367.1 RefSeq mRNA 138637 150662 . - . ID=rna0;Parent=gene0
NC_004367.1 RefSeq exon 959 966 . - . ID=id1;Parent=rna0
NC_004367.1 RefSeq exon 140247 140485 . - . ID=id2;Parent=rna0
NC_004367.1 RefSeq exon 140075 140167 . - . ID=id3;Parent=rna0
NC_004367.1 RefSeq exon 139744 139992 . - . ID=id4;Parent=rna0
NC_004367.1 RefSeq exon 139572 139661 . - . ID=id5;Parent=rna0
NC_004367.1 RefSeq exon 139294 139458 . - . ID=id6;Parent=rna0
NC_004367.1 RefSeq exon 139106 139219 . - . ID=id7;Parent=rna0
NC_004367.1 RefSeq exon 138904 139005 . - . ID=id8;Parent=rna0
NC_004367.1 RefSeq exon 138637 138818 . - . ID=id9;Parent=rna0
NC_004367.1 RefSeq CDS 959 966 . - 0 ID=cds0;Parent=rna0
NC_004367.1 RefSeq CDS 140247 140485 . - 1 ID=cds0;Parent=rna0
NC_004367.1 RefSeq CDS 140075 140167 . - 2 ID=cds0;Parent=rna0
NC_004367.1 RefSeq CDS 139744 139992 . - 2 ID=cds0;Parent=rna0
NC_004367.1 RefSeq CDS 139572 139661 . - 2 ID=cds0;Parent=rna0
NC_004367.1 RefSeq CDS 139294 139458 . - 2 ID=cds0;Parent=rna0
NC_004367.1 RefSeq CDS 139106 139219 . - 2 ID=cds0;Parent=rna0
NC_004367.1 RefSeq CDS 138904 139005 . - 2 ID=cds0;Parent=rna0
NC_004367.1 RefSeq CDS 138637 138818 . - 2 ID=cds0;Parent=rna0
</code></pre><h3 id=annotation-accommodations-for-putative-assembly-errors>Annotation accommodations for putative assembly errors</h3><p>The INSDC annotation specification includes several options for annotating mRNA
and CDS features affected by putative assembly errors, and these conventions can
also appear in the GFF3 format for both GenBank and RefSeq genomes.</p><p>CDSes with internal stop codons that are believed to be in error can be
annotated with a transl_except attribute on the CDS feature to indicate the
location of the internal stop codon and its replacement amino acid.</p><p>mRNA and CDS features disrupted by frameshifting insertions or deletions that
are thought to represent assembly errors may be adjusted through the use of
short overlaps or &ldquo;micro-introns&rdquo; between exon and CDS rows of the same mRNA
feature. These adjustments artificially appear to split a single exon into two,
but serve to restore the reading frame and allow representation of a complete
CDS in the correct frame. In the case of an overlap, the overlapping base does
not necessarily represent the correct sequence, but serves to represent an
insertion of a length that restores the proper reading frame.</p><p>The overlap/micro-intron format is a compromise designed to allow processing by
most software; however, some software may not properly accommodate overlaps, in
which case the annotation may require modification.</p><p>If the software supports internal phase shifts with a partial codon in the
middle of the CDS, then an overlap can be adjusted by trimming the
coordinate of the first row (modify column 5 if the feature is on the +
strand, and column 4 if the feature is on the - strand), without altering
the phase column:</p><p>original:
seq1 GenBank CDS 100 150 . + 0 ID=cds1
seq1 GenBank CDS 150 200 . + 0 ID=cds1</p><p>altered:
seq1 GenBank CDS 100 149 . + 0 ID=cds1
seq1 GenBank CDS 150 200 . + 0 ID=cds1</p><p>If the software does not support either overlaps or internal phase shifts,
then the alternative is to adjust the first row by a multiple of three,
creating a micro-intron that maintains the proper phase:</p><p>original:
seq1 GenBank CDS 100 150 . + 0 ID=cds1
seq1 GenBank CDS 150 200 . + 0 ID=cds1</p><p>altered:
seq1 GenBank CDS 100 147 . + 0 ID=cds1
seq1 GenBank CDS 150 200 . + 0 ID=cds1</p><h3 id=ribosomal-slippage>Ribosomal slippage</h3><p>Some proteins are expressed by a process involving +1 or -1 translation
frameshifts (aka ribosomal slippage). In this case the CDS feature for what is
a single exon is split into two intervals, with either a small gap (positive
slippage) or a slight overlap (negative slippage), similar to how some putative
assembly error cases are annotated. However, for ribosomal slippage annotations
the exons of the corresponding mRNA feature do NOT include the slippage because
only the translated protein is affected by the slippage event. These types of
CDS features can be identified by the attribute &ldquo;exception=ribosomal slippage&rdquo;.</p><h2 id=alignments>Alignments</h2><p>Alignments are provided according to the GFF3 specifications. They are
identified by the SO type in column 3:
cDNA_match &ndash; used for mRNA-genome alignments
EST_match &ndash; used for EST-genome alignments
protein_match &ndash; used for protein-genome alignments
match &ndash; used for all other alignments, including transcripts other than mRNA</p><p>They appear in several places:</p><p>Genomic annotation GFF3 files include alignments for genomic RefSeq (NGs),
and those transcript RefSeqs (NM/NR and XM/XR accession prefixes) where the
transcript does not map perfectly to the feature (see ANNOTATION DATA MODEL).</p><p><a href=https://ftp.ncbi.nlm.nih.gov/pub/remap/ target=_blank>Genome-genome alignment files</a>
as used by NCBI&rsquo;s Remap service.</p><p><a href=https://ftp.ncbi.nlm.nih.gov/genomes/refseq/vertebrate_mammalian/Homo_sapiens/latest_assembly_versions/GCF_000001405.40_GRCh38.p14/GCF_000001405.40_GRCh38.p14_assembly_structure/ALT_REF_LOCI_1/alt_scaffolds/alignments/ target=_blank>Primary-ALT_LOCI and primary-PATCH alignment files</a>
, provided as part of
the human and mouse GRC assemblies, indicating correspondence between
locations on the primary assembly and sequences of alternate loci.</p><p><a href=https://ftp.ncbi.nlm.nih.gov/genomes/refseq/vertebrate_mammalian/Mus_musculus/annotation_releases/108/GCF_000001635.27_GRCm38.p6/Evidence_alignments/ target=_blank>Transcript alignment files</a>
for eukaryotes produced by NCBI&rsquo;s eukaryotic
genome annotation pipeline, provided in the Evidence_alignments sub-directory.</p><p>RefSeq transcript and RefSeqGene genomic alignments for <a href=https://ftp.ncbi.nlm.nih.gov/refseq/H_sapiens/alignments/ target=_blank>human</a>
and <a href=https://ftp.ncbi.nlm.nih.gov/refseq/M_musculus/annotation_releases/current/GCF_000001635.27_GRCm39/RefSeq_transcripts_alignments/ target=_blank>mouse</a>
.</p><h3 id=official-gff3-attributes-1>Official GFF3 attributes</h3><p><strong>ID</strong>
A unique identifier for the alignment. Some alignments use a long UUID string
as a stable alignment identifier. Multiple rows with the same ID indicate
parts of the same alignment. For example, transcript alignments are
represented with a separate row representing each exon of the transcript.</p><p><strong>Target</strong>
The accession.version of the sequence aligned to the reference sequence
indicated in column 1. The format is &ldquo;target_id start end strand&rdquo;, where
start &lt; end.</p><p><strong>Gap</strong>
Location of Gaps (indels) in the alignment in the Exonerate CIGAR format
where &lsquo;M&rsquo; indicates an aligned base (which may be either a match or
mismatch). The locations of mismatches must be computed by comparing the
Target and Reference sequences. The Gap attribute is omitted if there are
no indels within the alignment Target range.</p><p>The Gap attribute is relative to the Target sequence and range
for that row of the alignment. If the Target is in minus orientation, then
the Gap string is read from end to start. For example:
ID=aln1;Target=NG_033055.1 1 7866 -;Gap=M7047 D1 M819
indicates:
NG_0033055.1:7866..820 &ldquo;match&rdquo;
followed by a deletion of 1 bp (the extra base is present in the
reference sequence, and missing from the target)
NG_0033055.1:819..1 &ldquo;match&rdquo;</p><p>Note gaps can also be represented by ranges of the Target (either at the
beginning, end, or internally) that are not found in any row of the
alignment.</p><h3 id=unofficial-attributes-1>Unofficial attributes</h3><p>A wide variety of scores may be present in alignment files depending on the
process that generated them. Many aren&rsquo;t of direct use to most users. Most
reported scores, including all scores listed below, apply to the alignment as
a whole (all rows with the same ID). The most useful scores are described here:</p><p><strong>gap_count</strong>
number of gap openings in the alignment. Equal to the number of D or I codes
in the Gap string.</p><p><strong>num_ident</strong>
number of identities in the alignment</p><p><strong>num_mismatch</strong>
number of mismatches in the alignment. If num_mismatch=0, then there are no
mismatches within the aligned portion of the Target and Reference (for any
match row with the same ID)</p><p><strong>pct_coverage</strong>
Gapped percent coverage of the Target sequence.</p><p><strong>pct_identity_gap</strong>
Gapped percent identity, for the aligned portion of the Target. This is the
standard BLAST percent identity score. Unaligned portions of the Target
(not included in any match row with the same ID) do not affect the reported
identity.</p><p><strong>pct_identity_gapopen_only</strong>
Percent identity, counting gaps as a mismatch regardless of length.</p><p><strong>pct_identity_ungap</strong>
Percent identity, ignoring gaps</p><p><strong>reciprocity</strong>
Used for assembly-assembly alignments. Values:
3 == alignment is best for both Reference and Target. Also referred to as
&lsquo;First-Pass Alignments&rsquo;
1 or 2 == alignment is best for one sequence, but a better alignment is
reported for the other sequence. Also referred to as &lsquo;Second-Pass
Alignments&rsquo;</p><p>More details on some of the reported scores is available in the
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