Class a: All alpha proteins [46456] (171 folds) |
Fold a.24: Four-helical up-and-down bundle [47161] (16 superfamilies) core: 4 helices; bundle, closed or partly opened, left-handed twist; up-and-down |
Superfamily a.24.3: Cytochromes [47175] (2 families) Heme-containing proteins |
a.24.3.1: Cytochrome b562 [47176] (1 protein) |
a.24.3.2: Cytochrome c' [47179] (1 protein) |
Timeline for Superfamily a.24.3: Cytochromes: