Actins - ț̢
Filamentous proteins that are the main constituent of the thin filaments of muscle fibers. The filaments (known also as filamentous or F-actin) can be dissociated into their globular subunits; each subunit is composed of a single polypeptide 375 amino acids long. This is known as globular or G-actin. In conjunction with MYOSINS, actin is responsible for the contraction and relaxation of muscle.
Synonyms : Actin, Isoactin, N-Actin, alpha-Actin, alpha-Isoactin, beta-Actin, gamma-Actin, F Actin, G Actin, N Actin, alpha Actin, alpha Isoactin, beta Actin, gamma Actin