| Strain | Pseudomonas aeruginosa PAO1 |
| GI | 15599009 |
| Locus Tag | PA3814 |
| Description | L-cysteine desulfurase (pyridoxal phosphate-dependent) |
| Strain | Pseudomonas stutzeri DSM 4166 |
| GI | 386021792 |
| Locus Tag | PSTAA_3204 |
| Description | cysteine desulfurase |
| Strain | Hahella chejuensis KCTC 2396 |
| GI | 83647155 |
| Locus Tag | HCH_04461 |
| Description | cysteine sulfinate desulfinase/cysteine desulfurase |