| Strain | Pseudomonas putida BIRD-1 |
| GI | 386014107 |
| Locus Tag | PPUBIRD1_4618 |
| Description | protein CbiD |
| Strain | Pseudomonas denitrificans ATCC 13867 |
| GI | 472323781 |
| Locus Tag | H681_03025 |
| Description | cobalt-precorrin-6A synthase |
| Strain | Hahella chejuensis KCTC 2396 |
| GI | 83649102 |
| Locus Tag | HCH_06469 |
| Description | cobalt-precorrin-6A synthase |