update 200912 - GO terms of genes and their associated evidence are from NCBI Gene.
update 200912 - The GO annotation are from the Gene Ontology.
update 200905 - Genomes and analysed transcripts are from UCSC Genome Browser.
GOOD contains orthologs of reference genes among four vertebrate species, namely, human, chimpanzee, mouse, and cow. The original data sources are downloaded from UCSC Genome Browser. The GO annotation version "go_200912-termdb-tables.tar.gz" is download from the Gene Ontology.
| species | version | no. mRNA | no. PTU |
| Human (Homo sapiens) | Mar. 2006 (hg18) | 25,623 | 18,373 |
| Mouse (Mus musculus) | Jul. 2007 (mm9) | 21,404 | 18,858 |
| Chimpanzee (Pan troglodytes) | Mar. 2006 (panTro2) | 25,554 | 17,681 |
| Cow (Bos taurus) | Oct. 2007 (bosTau4) | 9,531 | 9,311 |
| Homo sapiens | H.sap | |||
| Pan troglodytes | 17,588 | P.tro | ||
| Mus musculus | 16,545 | 15,078 | M.mus | |
| Bos taurus | 9,314 | 9,144 | 8,937 | B.tau |