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RefSeq | NCBI reference sequences : a curated non-redundant sequence database of genomes, transcripts and proteins


Offers annotation for over 95 000 genomes. RefSeq is an online resource that provides users with a resource of quality. It also assigns informative names to genes, provides some annotation for every gene found in each genome it analyzes, and supports comparative studies by using consistent structural and functional annotation methods. It uses tailored data models and process flows to deliver reference collections for eukaryotes, viruses and prokaryotes.

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RefSeq classification

  • Animals
  • Fungi
  • Plants
  • Protists

RefSeq specifications

Unique identifier:
Restrictions to use:
User data submission:
Not allowed
Reference Sequence
Community driven:

RefSeq support


  • Kim D. Pruitt <>
  • Daniel Haft <>


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National Center for Biotechnology Information, National Library of Medicine, National Institutes of Health, Bethesda, MD, USA

Funding source(s)

Supported by Intramural Research Program of the NIH, National Library of Medicine.

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