COGs - Clusters of Orthologous Groups

COGs
Phylogenetic classification of proteins encoded in complete genomes

COGs on FTP

Publications

Original COG paper. Science 1997 Oct 24;278(5338):631-7
2003 database update. BMC Bioinformatics 2003 Sep 11;4(1):41
2003 eukaryotic KOGs. Genome Biol. 2004 Jan 15;5(2):R7.
Cyanobacterial COGs. Proc Natl Acad Sci U.S.A. 2006 Aug 29;103(35):13126-13131.
Lactic acid bacteria COGs. Proc Natl Acad Sci U.S.A. 2006 Oct 17;103(42):15611-15616.
2007 archaeal COGs. Biol Direct 2007 Nov 27;2:33.
NCLDV COGs. Virol J. 2009 Dec 17;6:223.
Improved COG algorithm. Bioinformatics 2010 Jun 15;26(12):1481-1487.
2011 phage COGs. J Bacteriol. 2011 Apr;193(8):1806-1814.
Orthologs and BBH. Genome Biol Evol. 2012 Jan;4(12):1286-1294.
2012 archaeal COGs. Biol Direct 2012 Dec 14;7:46.
2013 phage COGs. J Bacteriol. 2013 Mar;195(5):941-950.

The previously existing COG pages are retired.
Comments and questions to info@ncbi.nlm.nih.gov or to the project supervisor.