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Beta-Lactamase Data Resources

NOTE: THIS RESOURCE IS DEPRECATED AND REPRESENTS AN OLDER SNAPSHOT. FOR THE LATEST REFERENCE SET OF ANTIMICROBIAL RESISTANCE GENES/PROTEINS GO TO THIS PROJECT: Bacterial Antimicrobial Resistance Reference Gene Database

Along with assigning new allele numbers to certain beta-lactamase families , NCBI has built the Bacterial Antimicrobial Resistance Reference Gene Database which contains the latest curated beta-lactamase protein and nucleotide sequences. Please use this resource for the most up to date information on antimicrobial resistance

We have deprecated two sets of beta-lactamase sequence files-these files are no longer actively maintained and may contain errors, inconsistencies, and outdated information:

  1. Downloadable protein sequence files, nucleotide sequence files, and a table providing accessions and curated gene product names for those beta-lactamase from families curated by NCBI for which there were nucleotide or protein accessions in Genbank on or before April 12, 2016.
  2. Downloadable protein sequence files, nucleotide sequence files, and a table providing accessions and curated gene product names for those beta-lactamases from the Lahey Beta-Lactamase site through to July 1, 2015 for which there were either nucleotide or protein accessions in Genbank.

Additional information about these resources is provided in the Read Me file, and the parent directory of these files is found at https://ftp.ncbi.nlm.nih.gov/pathogen/betalactamases/.

To submit novel beta-lactamases, see this page: https://www.ncbi.nlm.nih.gov/pathogens/submit-beta-lactamase/