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RefSeq: NCBI Reference Sequence Database

A comprehensive, integrated, non-redundant, well-annotated set of reference sequences including genomic, transcript, and protein.

Announcements


May 6, 2025
RefSeq Release 230 is available for FTP

This release includes:

Proteins:
407,964,097
Transcripts:
71,063,686
Organisms:
165,372
Available at:
ftp://ftp.ncbi.nlm.nih.gov/refseq/release/
Documentation:
Release Notes

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