CK


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creatine

 [kre´ah-tin]
a nonprotein substance synthesized in the body from three amino acids: arginine, glycine (aminoacetic acid), and methionine. Creatine readily combines with phosphate to form phosphocreatine, or creatine phosphate, which is present in muscle, where it serves as the storage form of high-energy phosphate necessary for muscle contraction.
creatine kinase an enzyme catalyzing the transfer of a phosphate group from phosphocreatine to ATP. It has three isoenzymes: CK1, found primarily in the brain; CK2, found in the myocardium; and CK3, found in both skeletal muscle and the myocardium. The presence of CK2 in the blood is strongly indicative of a recent myocardial infarction; it is present until about 72 hours after the attack.

CK

Abbreviation for creatine kinase.

CK

creatine kinase.

creatine kinase (CK)

an enzyme of the transferase class in muscle, brain, and other tissues. It catalyzes the transfer of a phosphate group from adenosine triphosphate to creatine, producing adenosine diphosphate and phosphocreatine. The reaction stores energy in muscle and brain tissue. Also called creatine phosphokinase. See also Duchenne's muscular dystrophy.

creatine kinase (CK) test

a blood test used to detect damage to the heart muscle, skeletal muscles, and brain. Serum CK levels are elevated whenever such damage occurs. CK is the main cardiac enzyme studied in patients with heart disease.

CHKA

A gene on chromosome 11q13.2 that encodes the first enzyme in CDP-choline pathway of phosphatidylcholine synthesis, catalysing the phosphorylation of ethanolamine; it is thought to play a regulatory role in phosphatidylcholine homeostasis.

CK

Creatinine phosphokinase, see there.

CK

Abbreviation for creatine kinase.

CK

creatine kinase

CK

Abbreviation for creatine kinase.

CK

creatine kinase.