| Species | Release | Last updated |
| Arabidopsis thaliana | NCBI Build TAIR7.0 | 18-07-2007 |
| Bos taurus | NCBI Build 3.1, Btau_3.1 | 26-01-2007 |
| Caenorhabditis elegans | NCBI Build WS170 | 27-04-2007 |
| Drosophila melanogaster | NCBI Build 5.1 (euchromatin v5.1, heterochromatin v3.2) | 06-12-2006 |
| Gallus gallus | NCBI Build 2.1, WASHUC2 | 05-12-2006 |
| Homo sapiens | NCBI Build 36.2 | 26-10-2006 |
| Mus musculus | NCBI Build 37.1 | 18-07-2007 |
| Oryza sativa ssp japonica | Genome assembly v5 | 27-04-2007 |
| Pan troglodytes | NCBI Build 2.1, PanTro2.1 | 26-10-2006 |
| Rattus norvegicus | NCBI Build 3.1, RGSC v3.4 | 12-07-2006 |