Why are there records that duplicate mine with NM_*, XM_*, and XP_* accession numbers?
The records that have NM_* or XM_* or other two-letter underscore 6 or 12+ digit formats, are reference sequences or RefSeqs. RefSeqs are curated from single or multiple sequence records that have been already directly submitted to GenBank. For a complete explanation that will include all of the accession number prefixes, click here for context on RefSeqs and a key to the RefSeq accessions.
Related Questions
- Why did OCLC assign accession numbers to the article-level records that are now included in WorldCat.org search results?
- Why are there duplicate address records for me (in the Mailing Addresses section of the Personal Information page)?
- Do DWPI First View records include Derwent Primary Accession Numbers (PANs)?
