Fold: Calponin-homology domain, CH-domain

core: 4 helices: bundle

Lineage:

1. Root: scop
2. Class: All alpha proteins
3. Fold: Calponin-homology domain, CH-domain
   core: 4 helices: bundle

Superfamilies:

1. Calponin-homology domain, CH-domain (1)
   1. Calponin-homology domain, CH-domain (4)
      1. beta-spectrin
         1. Human (Homo sapiens) (2)
      2. N-terminal actin-crosslinking domain from fimbrin
         duplication: consists of tandem repeat of two CH domains
         1. Human (Homo sapiens) (1)
      3. Utrophin
         1. Human (Homo sapiens) (2)
      4. Dystrophin
         1. Human (Homo sapiens) (1)