Superfamily: Cytochrome c

covalently-bound heme completes the core

Lineage:

1. Root: scop
2. Class: All alpha proteins
3. Fold: Cytochrome c
   core: 3 helices; folded leaf, opened
4. Superfamily: Cytochrome c
   covalently-bound heme completes the core

Families:

1. monodomain cytochrome c (33)
2. N-terminal (heme c) domain of cytochrome cd1-nitrite reductase (3)
3. Cytochrome bc1 domain (2)
4. Two-domain cytochrome c (2)
   duplication: consists of two cytochrome c type domains
5. Di-haem cytohrome c peroxidase (1)
   duplication: contains two cytochtome c-type domains