creatine kinase

American  

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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Example Sentences

A normal level of creatine kinase is in the 100 to 200 range.

From New York Times • Jul. 14, 2021

Subsequent testing revealed some players had high levels of creatine kinase, another indicator.

From Washington Times • Jan. 19, 2017

“He has very high levels of creatine kinase … this points to muscular dystrophy … and by virtue of his age and sex, it’s statistically most likely he has Duchenne.”

From The Guardian • Aug. 16, 2014

This reaction is catalyzed by the enzyme creatine kinase and occurs very quickly; thus, creatine phosphate-derived ATP powers the first few seconds of muscle contraction.

From Textbooks • Jun. 19, 2013

For a woman whose fertilized ovum has suffered a one-time mutation and who is not a carrier, the creatine kinase test is no predictor.

From Time Magazine Archive