the steady-state kinetics of the k+ , ca2+ , and mg2+-activated adenosine triphosphatase ( atpase ) activities of rabbit skeletal myosin were investigated in the substrate concentration range from 0.05 microm to 5 mm and found not to follow michaelis-menten kinetics but rather to display biphasic behavior .
C0001477
mg2
C0001473
atpase