| Species | RefIntense Num | Refseq Num | Source |
|---|---|---|---|
| Kallipyga massiliensis | 1 | 1 | MGYG |
| Kamptonema sp. PCC 6506 | 1 | 1 | HMP |
| Kangiella koreensis | 1 | 1 | HMP |
| Kineococcus radiotolerans | 1 | 2 | HMP |
| Kingella oralis | 1 | 2 | HMP |
| Klebsiella aerogenes | 1 | 373 | MGYG |
| Klebsiella grimontii | 1 | 146 | MGYG |
| Klebsiella michiganensis | 1 | 384 | MGYG |
| Klebsiella oxytoca | 1 | 236 | MGYG |
| Klebsiella pneumoniae | 2 | 13935 | HMP/MGYG |