![]() | Class f: Membrane and cell surface proteins and peptides [56835] (69 folds) |
![]() | Fold f.21: Heme-binding four-helical bundle [81344] (3 superfamilies) core: four transmembrane helices, up-and-down bundle, binds one or two heme groups in between the helices |
![]() | Superfamily f.21.1: Transmembrane di-heme cytochromes [81342] (2 families) ![]() Three of the four heme-ligands are conserved between the two families; both heme groups bind similarly but not identically |
![]() | Family f.21.1.2: Cytochrome b of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase) [81642] (3 proteins) a part (domain) of a larger mitochondrial cytochrome b subunit, separate subunit in plants and cyanobacteria |
![]() | Protein Cytochrome b6 subunit of the cytochrome b6f complex [103498] (2 species) |
![]() | Species Green alga (Chlamydomonas reinhardtii) [TaxId:3055] [103500] (1 PDB entry) |
Timeline for Species Green alga (Chlamydomonas reinhardtii) [TaxId:3055] from f.21.1.2 Cytochrome b6 subunit of the cytochrome b6f complex: