| Class a: All alpha proteins [46456] (218 folds) |
| Fold a.138: Multiheme cytochromes [48694] (1 superfamily) variable number of helices and little beta structure; not a true fold |
Superfamily a.138.1: Multiheme cytochromes [48695] (3 families) ![]() duplication: contains multiple CxxCH motifs |
| Family a.138.1.2: Photosynthetic reaction centre (cytochrome subunit) [48707] (1 protein) consists of four heme-binding repeats |
| Photosynthetic reaction centre (cytochrome subunit) [48708] (2 species) |
| Species Rhodopseudomonas viridis [TaxId:1079] [48709] (9 PDB entries) |
| Species Thermochromatium tepidum [TaxId:1050] [48710] (1 PDB entry) |
Timeline for Family a.138.1.2: Photosynthetic reaction centre (cytochrome subunit):