RefSeq

Refseq
Content
Description curated non-redundant sequence database of genomes.
Contact
Research center National Center for Biotechnology Information
Primary Citation Pruitt KD & al. (2005)[1]
Access
Website http://www.ncbi.nlm.nih.gov/RefSeq
Tools
Miscellaneous

The Reference Sequence (RefSeq) database[1] is an open access, annotated and curated collection of publicly available nucleotide sequences (DNA, RNA) and their protein products. This database is built by National Center for Biotechnology Information (NCBI), and, unlike GenBank, provides only single record for each natural biological molecule(i.e. DNA, RNA or protein) for major organisms ranging from viruses to bacteria to eukaryotes.

For each model organism, RefSeq aims to provide separate and linked records for the genomic DNA, the gene transcripts, and the proteins arising from those transcripts. RefSeq is limited to major organisms for which sufficient data is available (more than 16,000 distinct “named” organisms as of September 2011),[2] while GenBank includes sequences for any organism submitted (approximately 250,000 different named organisms).

Contents

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RefSeq categories

Category Description
NC Complete genomic molecules
NG Incomplete genomic region
NM mRNA
NR ncRNA
NP Protein
XM mRNA of under curation process
XP Protein of under curation process

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