creatine kinase

noun Biochemistry.
  1. an enzyme that, during muscular activity, catalyzes the transfer of a phosphoryl group from phosphocreatine in muscle to produce ATP.
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creatine kinase in Medicine

creatine kinase

n.
  1. An enzyme present in muscle, brain, and other tissues of vertebrates that catalyzes the reversible conversion of ADP and phosphocreatine into ATP and creatine.
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