1.1 NCBI's Sequence Identifier Syntax
The National Center for Biotechnology Information (NCBI) uses the following syntax for its BLAST server. NCBI is part of the National Library of Medicine (NLM) at the National Institutes of Health (NIH). The following (including the table) is NCBI's description. See ftp://ftp.ncbi.nih.gov/blast/db/README for details.