| Strain | Pseudomonas stutzeri A1501 |
| GI | 146281450 |
| Locus Tag | PST_1064 |
| Description | ubiquinol--cytochrome c reductase, cytochrome b |
| Strain | Pseudomonas resinovorans NBRC 106553 |
| GI | 512616713 |
| Locus Tag | PCA10_10600 |
| Description | ubiquinol--cytochrome c reductase cytochrome b subunit |
| Strain | Hahella chejuensis KCTC 2396 |
| GI | 83648539 |
| Locus Tag | HCH_05899 |
| Description | cytochrome subunit B of the bc complex |