Catalysis of an inorganic phosphate-H2-O-18 exchange by actomysin and myosin.
D000227:Adenine Nucleotides / Q000737:chemistry*; D002384:Catalysis; D009124:Muscle Proteins / Q000737:chemistry*; D009218:Myosins; D010100:Oxygen / Q000737:chemistry*; D010710:Phosphates / Q000737:chemistry*
D000227:Adenine Nucleotides; D009124:Muscle Proteins; D010710:Phosphates; D009218:Myosins; D010100:Oxygen
ADENOSINE PHOSPHATES/chemistry; MUSCLE PROTEINS/chemistry; OXYGEN/chemistry; PHOSPHATES/chemistry