. 2016 Nov 29;45(Database issue):D353–D361. doi: 10.1093/nar/gkw1092

Table 3. Seqeunce data collection in KEGG GENES.

Category	Sequence data	Primary data source	Gene identifier^a
KEGG organisms	Genes in complete eukaryotic genomes	RefSeq	org:geneid
	Genes in complete prokaryotic genomes	RefSeq (reference genomes), GenBank (other genomes)	org:locus_tag
Viruses	Genes in RefSeq Virus collection	RefSeq	vg:geneid
Addendum	Functionally characterized proteins	PubMed	ag:proteinid

^aorg, three- or four-letter KEGG organism code; vg, Viruses category code; ag, Addendum category code