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PubMed Abstract Plus

CD Tree and Cn3D Release

Whole Genome Shotgun Growth

New BLAST View Options

New Genome Builds–Map Viewer

New Organisms in UniGene

RefSeq Release 22

GenBank Release 158

NCBI Courses

Submissions Corner

PubChem Grows to 15 Million

Masthead





RefSeq Release 22

RefSeq Release 22 is now available by anonymous FTP at:

Release 22 includes genomic, transcript, and protein sequences available as of March 5, 2007, from 4,187 organisms. The number of RefSeq accessions in Release 22 and their combined lengths is given in the shaded box.

RefSeq releases are posted every two months, and the next release is scheduled for May, 2007. Release notes documenting the scope and content of the database are provided at:

For more information, visit the NCBI RefSeq Web Site at:

 
 
# of Accessions
# of Basepairs/Residues

Genomic

840,657
80,808,752,887
RNA
929,109
1,632,375,659
Protein
3,438,099
1,215,085,694
 

Table 1. Statistics for RefSeq release 22.

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NCBI News | Fall/Winter 2002 NCBI News: Spring 2003