1. Any of various enzymes that catalyze the transfer of a phosphate group from a donor molecule (such as ATP) to an acceptor molecule.
Usage: technical; biochemistry
2. Creatine phosphokinase (CPK), an enzyme found in muscle and brain tissue that is measured clinically as an indicator of muscle damage or heart disease.
Usage: medical; often used in clinical contexts

Examples

• The lab measured phosphokinase levels to assess muscle damage after the injury.
• Phosphokinase enzymes play a crucial role in cellular energy metabolism.
• Elevated phosphokinase in the blood can indicate a heart attack.
• Different types of phosphokinase are found in various tissues throughout the body.
• The patient's phosphokinase test results suggested muscle breakdown.
• Researchers studied how phosphokinase transfers phosphate groups in metabolic pathways.