| Species | RefIntense Num | Refseq Num | Source |
|---|---|---|---|
| Shigella boydii | 1 | 103 | HMP |
| Shigella flexneri | 2 | 738 | HMP |
| Shigella sonnei | 1 | 1399 | HMP |
| Shuttleworthia satelles | 1 | 1 | HMP |
| Sideroxydans lithotrophicus | 1 | 1 | HMP |
| Simonsiella muelleri | 1 | 3 | HMP |
| Sinorhizobium fredii | 1 | 20 | HMP |
| Sinorhizobium medicae | 1 | 51 | HMP |
| Sinorhizobium meliloti | 1 | 241 | HMP |
| Slackia exigua | 2 | 4 | HMP/MGYG |