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Accession Number

A stable identifier assigned to a sequence record in a public database. An accession tracks the record over time even if annotation is updated.

Example in a sentence

The accession number was used to retrieve the exact sequence record.

Key facts

  • Stable record identifier.
  • Used across GenBank, RefSeq, and other archives.

Category: File Formats

Authoritative references

Related terms

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Accession Number | Bioinformatics Glossary | GENOS.bio