Class f: Membrane and cell surface proteins and peptides [56835] (57 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.21.2: Fumarate reductase respiratory complex transmembrane subunits [81343] (2 families) two distinct families: in one family the common fold is contained in a single-chain subunit, in the other it is formed by two chains |
Family f.21.2.1: Fumarate reductase respiratory complex cytochrome b subunit, FrdC [56910] (2 proteins) duplication: consists of two structural repeats; the heme-binding sites are related by pseudo two fold symmetry |
Fumarate reductase respiratory complex cytochrome b subunit, FrdC [56911] (1 species) |
Species Wolinella succinogenes [TaxId:844] [56913] (4 PDB entries) |
automated matches [190227] (1 species) not a true protein |
Species Wolinella succinogenes [TaxId:844] [186991] (3 PDB entries) |
Timeline for Family f.21.2.1: Fumarate reductase respiratory complex cytochrome b subunit, FrdC: