Antibody to Physarum myosin. I. Preparation and functional effects.
Preparation of antibody to Physarum myosin is described, and evidence is presented that the antibody is specific for this molecule. A diffusion coefficient of 1 X 10(-7) cm2/s is estimated. The antibody interfered with myosin enzyme activity and with superprecipitation of actomyosin. It did not cross-react with rabbit striated muscle myosin.