| P00158 | n/a | 7o37 | PC1 | E | 202 | e7o37C1 | Transmembrane heme-binding four-helical bundle | Transmembrane heme-binding four-helical bundle | Transmembrane di-heme cytochromes | Cytochrome_B |
| P00158 | n/a | 7o37 | PC1 | G | 105 | e7o37C2 | a domain/subunit of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase) | a domain/subunit of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase) | a domain/subunit of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase) | Cytochrom_B_C |
| P00158 | n/a | 7o3c | PC1 | J | 101 | e7o3cC1 | Transmembrane heme-binding four-helical bundle | Transmembrane heme-binding four-helical bundle | Transmembrane di-heme cytochromes | Cytochrome_B |
| P00158 | n/a | 7o3h | PC1 | J | 101 | e7o3hC1 | Transmembrane heme-binding four-helical bundle | Transmembrane heme-binding four-helical bundle | Transmembrane di-heme cytochromes | Cytochrome_B |