| P0A384 | n/a | 2zt9 | OPC | B | 202 | e2zt9A1 | Transmembrane heme-binding four-helical bundle | Transmembrane heme-binding four-helical bundle | Transmembrane di-heme cytochromes | Cytochrome_B |
| P0A384 | n/a | 2zt9 | OPC | H | 30 | e2zt9A1 | Transmembrane heme-binding four-helical bundle | Transmembrane heme-binding four-helical bundle | Transmembrane di-heme cytochromes | Cytochrome_B |
| P0A384 | n/a | 4h44 | OPC | B | 202 | e4h44A1 | Transmembrane heme-binding four-helical bundle | Transmembrane heme-binding four-helical bundle | Transmembrane di-heme cytochromes | Cytochrome_B |
| P0A384 | n/a | 4h44 | OPC | C | 302 | e4h44A1 | Transmembrane heme-binding four-helical bundle | Transmembrane heme-binding four-helical bundle | Transmembrane di-heme cytochromes | Cytochrome_B |
| P0A384 | n/a | 4ogq | OPC | B | 205 | e4ogqA1 | Transmembrane heme-binding four-helical bundle | Transmembrane heme-binding four-helical bundle | Transmembrane di-heme cytochromes | Cytochrome_B |