| Type: | Repeat | Name: | Spectrin/alpha-actinin |
| Description: | Spectrin repeats [] are found in several proteins involved in cytoskeletal structure. These include spectrin alpha and beta subunits [, ], alpha-actinin [] and dystrophin. The spectrin repeat forms a three-helix bundle. The second helix is interrupted by proline in some sequences. The repeats are defined by a characteristic tryptophan (W) residue at position 17 in helix A and a leucine (L) at 2 residues from the carboxyl end of helix C. | Short Name: | Spectrin/alpha-actinin |
