Accession number (bioinformatics)

Short description: Unique identifier given to DNA or a protein sequence

An accession number, in bioinformatics, is a unique identifier given to a DNA or protein sequence record to allow for tracking of different versions of that sequence record and the associated sequence over time in a single data repository. Because of its relative stability, accession numbers can be utilized as foreign keys for referring to a sequence object, but not necessarily to a unique sequence. All sequence information repositories implement the concept of "accession number" but might do so with subtle variations.

## LRG

Main article: Biology:Locus Reference Genomic

Locus Reference Genomic (LRG) records have unique accession numbers starting with LRG_ followed by a number. They are recommended in the Human Genome Variation Society Nomenclature guidelines as stable genomic reference sequences to report sequence variants in LSDBs and the literature.

## Notes and references

1. ^ Amos Bairoch; Rolf Apweiler. "User Manual". UniProt Knowledgebase. Archived from the original on 21 September 2005. https://web.archive.org/web/20050921221534/http://www.expasy.org/sprot/userman.html. Retrieved October 20, 2005.
2. This article incorporates public domain material from the National Center for Biotechnology Information document "NCBI Handbook".

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