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<meta name="robots" content="NOINDEX,NOFOLLOW,NOARCHIVE,NOIMAGEINDEX" /><meta name="citation_inbook_title" content="SRA Knowledge Base [Internet]" /><meta name="citation_title" content="Searching for Data Generated by a Specific Platform or Instrument" /><meta name="citation_publisher" content="National Center for Biotechnology Information (US)" /><meta name="citation_date" content="2014/03/18" /><meta name="citation_fulltext_html_url" content="https://www.ncbi.nlm.nih.gov/books/NBK569231/" /><link rel="schema.DC" href="http://purl.org/DC/elements/1.0/" /><meta name="DC.Title" content="Searching for Data Generated by a Specific Platform or Instrument" /><meta name="DC.Type" content="Text" /><meta name="DC.Publisher" content="National Center for Biotechnology Information (US)" /><meta name="DC.Date" content="2014/03/18" /><meta name="DC.Identifier" content="https://www.ncbi.nlm.nih.gov/books/NBK569231/" /><meta name="og:title" content="Searching for Data Generated by a Specific Platform or Instrument" /><meta name="og:type" content="book" /><meta name="og:url" content="https://www.ncbi.nlm.nih.gov/books/NBK569231/" /><meta name="og:site_name" content="NCBI Bookshelf" /><meta name="og:image" content="https://www.ncbi.nlm.nih.gov/corehtml/pmc/pmcgifs/bookshelf/thumbs/th-helpsrakb-lrg.png" /><meta name="twitter:card" content="summary" /><meta name="twitter:site" content="@ncbibooks" /><meta name="warning" content="This publication is provided for historical reference only and the information may be out of date." /><meta name="bk-non-canon-loc" content="/books/n/helpsrakb/srch_by_platform/" /><link rel="canonical" href="https://www.ncbi.nlm.nih.gov/books/NBK569231/" /><link rel="stylesheet" href="/corehtml/pmc/css/figpopup.css" type="text/css" media="screen" /><link rel="stylesheet" href="/corehtml/pmc/css/bookshelf/2.26/css/books.min.css" type="text/css" /><link rel="stylesheet" href="/corehtml/pmc/css/bookshelf/2.26/css/books_print.min.css" type="text/css" /><style type="text/css">p a.figpopup{display:inline !important} .bk_tt {font-family: monospace} .first-line-outdent .bk_ref {display: inline} </style><script type="text/javascript" src="/corehtml/pmc/js/jquery.hoverIntent.min.js"> </script><script type="text/javascript" src="/corehtml/pmc/js/common.min.js?_=3.18"> </script><script type="text/javascript">window.name="mainwindow";</script><script type="text/javascript" src="/corehtml/pmc/js/bookshelf/2.26/book-toc.min.js"> </script><script type="text/javascript" src="/corehtml/pmc/js/bookshelf/2.26/books.min.js"> </script>
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<div class="pre-content"><div><div class="bk_prnt"><p class="small">NCBI Bookshelf. A service of the National Library of Medicine, National Institutes of Health.</p><p>SRA Knowledge Base [Internet]. Bethesda (MD): National Center for Biotechnology Information (US); 2011-. </p></div><div class="messagearea bk_noprnt" style="margin-bottom:1.3846em "><ul class="messages"><li class="warn icon"><span class="icon">This publication is provided for historical reference only and the information may be out of date.</span></li></ul></div><div class="bk_prnt"><p style="color:red;"><strong>This publication is provided for historical reference only and the information may be out of date.</strong></p></div></div></div>
<div class="main-content lit-style" itemscope="itemscope" itemtype="http://schema.org/CreativeWork"><div class="meta-content fm-sec"><h1 id="_NBK569231_"><span class="title" itemprop="name">Searching for Data Generated by a Specific Platform or Instrument</span></h1><p class="small">Created: <span itemprop="datePublished">August 22, 2011</span>; Last Update: <span itemprop="dateModified">March 18, 2014</span>.</p><p><em>Estimated reading time: 2 minutes</em></p></div><div class="body-content whole_rhythm" itemprop="text"><div><h4 id="srch_by_platform.can_i_search_for_sra_da">Can I search for SRA data by platform/instrument type?</h4><blockquote><p>Yes, you can search SRA for data by platform/instrument type using <a href="/sra" ref="pagearea=body&amp;targetsite=external&amp;targetcat=link&amp;targettype=uri">Entrez SRA</a>.</p><ul><li class="half_rhythm"><div><b>Search for the platform/instrument type</b>
<b>by placing</b>
<b>quotation marks around the name of the platform/instrument</b> (e.g. <span class="bk_pgobj">&#x0201c;ab solid system 3 0&#x0201d;</span>) <b>or by using a qualifier at the end of a compound word</b> (e.g. <span class="bk_pgobj">ab solid system 3 0[word]</span>
<i>or</i>
<span class="bk_pgobj">ab solid system 3 0[all]</span>).</div></li><li class="half_rhythm"><div><b>If you search for an unquoted or unqualified phrase</b> (e.g. <span class="bk_pgobj">ab solid system 3 0</span>), Entrez will not treat the words as a name &#x02013; they will be treated as list of words joined by the Boolean operator AND. This means Entrez will search for each of the words in all fields irrespective of order, and <b>your search results may contain records that would not normally be included in the results of a search for the name of the platform/instrument type</b>.</div></li><li class="half_rhythm"><div>To see how Entrez interpreted your query, look in the &#x0201c;Search Details&#x0201d; text box on your result page.</div></li></ul><p>Your search results will be presented as a list of experiments (<a href="/books/n/helpsrakb/srch_Understand_SRA/#srch_Understand_SRA.what_do_the_differen">SRX/ERX/DRX</a> accessions) whose metadata contains the phrase you entered in the query box.</p><dl class="temp-labeled-list"><dt>1.</dt><dd><p class="no_top_margin">Click on the SRX record of interest. The record will include:</p><dl class="temp-labeled-list"><dt>a.</dt><dd><p class="no_top_margin">Links to each run in the experiment</p></dd><dt>b.</dt><dd><p class="no_top_margin">Experiment design information (if available)</p></dd><dt>c.</dt><dd><p class="no_top_margin">Submission accession and submitter name</p></dd><dt>d.</dt><dd><p class="no_top_margin">Study summary and abstract (if available)</p></dd><dt>e.</dt><dd><p class="no_top_margin">Experiment sample (SRS) information</p></dd><dt>f.</dt><dd><p class="no_top_margin">Links to a list of experiments (SRX)</p></dd><dt>g.</dt><dd><p class="no_top_margin">Library information (if available)</p></dd><dt>h.</dt><dd><p class="no_top_margin">Platform information</p></dd><dt>i.</dt><dd><p class="no_top_margin">Processing information (base calls and quality scores)</p></dd><dt>j.</dt><dd><p class="no_top_margin">Spot descriptor information</p></dd><dt>k.</dt><dd><p class="no_top_margin">Links to related information</p></dd></dl></dd><dt>2.</dt><dd><p class="no_top_margin">At this point, you can do one of the following:</p><dl class="temp-labeled-list"><dt>a.</dt><dd><p class="no_top_margin"><b>Click on the &#x0201c;All experiments&#x0201d; link</b> to see a complete list of the experiments included in the study.</p></dd><dt>b.</dt><dd><p class="no_top_margin"><b>Download the data for a particular experiment</b> by clicking on the SRA or the SRA-lite download links. These links will take you to the SRA FTP site where the files are available for download. If there are no download links for the experiment record, please contact <a href="mailto:dev@null" data-email="vog.hin.mln.ibcn@ars" class="oemail">vog.hin.mln.ibcn@ars</a>.</p></dd><dt>c.</dt><dd><p class="no_top_margin"><b>Click on one of the</b>
<a href="/books/n/helpsrakb/srch_Understand_SRA/#srch_Understand_SRA.each_srx_entry_in_th"><b>run links</b></a>
<b>(</b><a href="/books/n/helpsrakb/srch_Understand_SRA/#srch_Understand_SRA.what_do_the_differen">SRR/ERR/DRR</a>
<b>accessions)</b> to go to the SRA Run Browser, where you can look at individual reads, search the spots for a specific sequence, or download a set of spots from the run.</p></dd></dl></dd></dl><p><b>Note:</b> Search results may not include all studies that used the specified platform or instrument since SRA is a raw data archive (not curated) and can index only those terms that a submitter provides in the metadata of their submission.</p><p><b>Note</b>: If you choose to download files, install the &#x0201c;<a href="http://www.asperasoft.com/download_connect/" ref="pagearea=body&amp;targetsite=external&amp;targetcat=link&amp;targettype=uri">Aspera Connect</a>&#x0201d; plug-in to transfer files at a significantly faster rate than ftp.</p></blockquote></div><div id="bk_toc_contnr"></div></div></div>
<div class="post-content"><div><div class="half_rhythm"><a href="/books/about/copyright/">Copyright Notice</a></div><div class="small"><span class="label">Bookshelf ID: NBK569231</span></div><div style="margin-top:2em" class="bk_noprnt"><a class="bk_cntns" href="/books/n/helpsrakb/">Contents</a><div class="pagination bk_noprnt"><a class="active page_link prev" href="/books/n/helpsrakb/srch_SpecifMolecule/" title="Previous page in this title">&lt; Prev</a><a class="active page_link next" href="/books/n/helpsrakb/srch_recent_submit/" title="Next page in this title">Next &gt;</a></div></div></div></div>
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