Topic summary
Armadillo repeats
Extracted from the Wikipedia article Armadillo repeat.
An armadillo repeat is a characteristic, repetitive amino acidsequence of about 42 residues in length that is found in many proteins. Proteins that contain armadillo repeats typically contain several tandemly repeated copies. Each armadillo repeat is composed of a pair of alpha helices that form a hairpin structure. Multiple copies of the repeat form what is known as an alpha solenoid structure.