it was found that ( i ) arterial myosin , like skeletal myosin , exhibited hyperbolic kinetics for atp hydrolysis , ( ii ) specific atpase activities were significantly higher for skeletal myosin , ( iii ) saturating concentrations of actin appear to totally inhibit the arterial myosin atpase activity , but only partially inhibit skeletal myosin activity , ( iv ) the free actin concentration required for half-maximal inhibition was significantly lower for the arterial myosin atpase activity than for the skeletal myosin activity ;
C1510699
atp hydrolysis
C0001473
atpase