| Strain | Pseudomonas putida BIRD-1 |
| GI | 386010022 |
| Locus Tag | PPUBIRD1_0399 |
| Description | protein BioB |
| Strain | Pseudomonas aeruginosa B136-33 |
| GI | 478476703 |
| Locus Tag | G655_02525 |
| Description | biotin synthase |
| Strain | Hahella chejuensis KCTC 2396 |
| GI | 83648030 |
| Locus Tag | HCH_05371 |
| Description | biotin synthase |