Table 1.

Status of GO, September 1, 2007

Biological process terms	13 916
Molecular function terms	7878
Cellular component terms	2007
Sequence ontology terms	1305
Annotation datasetsa	35
Species with annotation	1 37 454
Annotated gene products
Total	3 34 7495
Electronic	3 12 8309
Manual	2 19 186

^aMost datasets represent single species; Gramene, the TIGR gene index, UniProt GOA and UniProt PDB represent multiple species.