a protein fraction from the cellular slime mold dictyostelium discoideum confers ca2+-sensitivity on the activation of purified myosin adenosinetriphosphatase ( atp phosphohydrolase , ec 3.6.1.3 ) from dictyostelium by purified dictyostelium actin .
C0001476
ca2
C0001473
atp phosphohydrolase