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creatine phosphate |
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creatine /cre·a·tine/ (kre´ah-tin) an amino acid occurring in vertebrate tissues, particularly in muscle; phosphorylated creatine is an important storage form of high-energy phosphate.
creatine phosphate phosphocreatine.
creatine phosphate (CP) Etymology: Gk, kreas, flesh; Du, potasschen an enzyme that increases in blood levels when muscle damage has occurred, as in pseudohypertrophic muscular dystrophy. creatine a nonprotein nitrogen 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 intense muscle contraction. creatine kinase (CK) an organ-specific 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. In humans, the presence of CK2 in the blood is useful in diagnosing a recent myocardial infarction, but in animals CK3 is most commonly increased related to muscle damage. Called also creatine phosphokinase, Lohmann's enzyme. creatine phosphate see creatine (above). creatine phosphokinase called also CPK; see creatine kinase (above). Want to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit the webmaster's page for free fun content. |
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