| Strain | Pseudomonas aeruginosa NCGM2.S1 |
| GI | 386068586 |
| Locus Tag | NCGM2_5694 |
| Description | putative biotin synthesis protein |
| Strain | Pseudomonas stutzeri ATCC 17588 = LMG 11199 |
| GI | 339495891 |
| Locus Tag | PSTAB_3814 |
| Description | biotin synthesis protein BioC |
| Strain | Hahella chejuensis KCTC 2396 |
| GI | 83648027 |
| Locus Tag | HCH_05368 |
| Description | SAM-dependent methyltransferase |