Actins specific to muscle:
alpha-skeletal
alpha-cardiac
alpha-smooth muscle
gamma-smooth muscle
Anti smooth muscle actin (clone 1A4) is relatively non-specific. HHF35 recognises an epitope common to alpha-skeletal, alpha-cardiac and gamma-smooth muscle actins and is relatively specific to muscle.
Non-myogenous actins are found in most cell types:
beta-cytoplasmic
gamma-cytoplasmic