Class a: All alpha proteins [46456] (289 folds) |
Fold a.138: Multiheme cytochromes [48694] (1 superfamily) variable number of helices and little beta structure; not a true fold |
a.138.1: Multiheme cytochromes [48695] (4 families) duplication: contains multiple CxxCH motifs |
Timeline for Fold a.138: Multiheme cytochromes: