| P00156 | n/a | 5xte | PLX | L | 501 | e5xteJ2 | Transmembrane heme-binding four-helical bundle | Transmembrane heme-binding four-helical bundle | Transmembrane di-heme cytochromes | Cytochrome_B |
| P00156 | n/a | 5xte | PLX | Q | 101 | e5xteV1 | Transmembrane heme-binding four-helical bundle | Transmembrane heme-binding four-helical bundle | Transmembrane di-heme cytochromes | Cytochrome_B |
| P00156 | n/a | 5xth | PLX | AL | 501 | e5xthAJ2 | Transmembrane heme-binding four-helical bundle | Transmembrane heme-binding four-helical bundle | Transmembrane di-heme cytochromes | Cytochrome_B |
| P00156 | n/a | 5xth | PLX | AQ | 101 | e5xthAV2 | Transmembrane heme-binding four-helical bundle | Transmembrane heme-binding four-helical bundle | Transmembrane di-heme cytochromes | Cytochrome_B |
| P00156 | n/a | 5xti | PLX | AL | 501 | e5xtiAJ1 | Transmembrane heme-binding four-helical bundle | Transmembrane heme-binding four-helical bundle | Transmembrane di-heme cytochromes | Cytochrome_B |
| P00156 | n/a | 5xti | PLX | AQ | 101 | e5xtiAV1 | Transmembrane heme-binding four-helical bundle | Transmembrane heme-binding four-helical bundle | Transmembrane di-heme cytochromes | Cytochrome_B |