| Q57038 | DB18267 | 7r0w | HEM | A | 302 | e7r0wA1 | Transmembrane heme-binding four-helical bundle | Transmembrane heme-binding four-helical bundle | Transmembrane di-heme cytochromes | Cytochrome_B |
| Q57038 | DB18267 | 7r0w | HEM | A | 302 | e7r0wI1 | Transmembrane heme-binding four-helical bundle | Transmembrane heme-binding four-helical bundle | Transmembrane di-heme cytochromes | Cytochrome_B |
| Q57038 | DB18267 | 7r0w | HEM | B | 301 | e7r0wA1 | Transmembrane heme-binding four-helical bundle | Transmembrane heme-binding four-helical bundle | Transmembrane di-heme cytochromes | Cytochrome_B |
| Q57038 | DB18267 | 7r0w | HEM | I | 303 | e7r0wI1 | Transmembrane heme-binding four-helical bundle | Transmembrane heme-binding four-helical bundle | Transmembrane di-heme cytochromes | Cytochrome_B |
| Q57038 | DB18267 | 7zxy | HEM | A | 303 | e7zxyA1 | Transmembrane heme-binding four-helical bundle | Transmembrane heme-binding four-helical bundle | Transmembrane di-heme cytochromes | Cytochrome_B |
| Q57038 | DB18267 | 7zxy | HEM | I | 304 | e7zxyI1 | Transmembrane heme-binding four-helical bundle | Transmembrane heme-binding four-helical bundle | Transmembrane di-heme cytochromes | Cytochrome_B |