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phosphocreatine
phos·pho·cre·a·tine P0258000 (fŏs′fō-krē′ə-tēn′) also phos·pho·cre·a·tin (-tĭn)n. An organic compound, C4H10N3O5P, found in muscle tissue and capable of storing and providing energy for muscular contraction. Also called creatine phosphate.phosphocreatine (ˌfɒsfəˈkriːəˌtiːn) or phosphocreatinn (Elements & Compounds) a compound of phosphoric acid and creatine found in vertebrate musclephos•pho•cre•a•tine (ˌfɒs foʊˈkri əˌtin, -tɪn)
n. a compound, C4H10O5N3P, occurring in muscle, formed by the enzymatic interaction of an organic phosphate and creatine, the breakdown of which provides energy for muscle contraction. Also called creatine phosphate. [1925–30] Thesaurus| Noun | 1. | phosphocreatine - an organic compound of creatine and phosphoric acid; found in the muscles of vertebrates where its hydrolysis releases energy for muscular contractioncreatine phosphate, creatine phosphoric acidorganic compound - any compound of carbon and another element or a radical |
Phosphocreatine
phosphocreatine[¦fäs·fō′krē·ə‚tēn] (biochemistry) C4H10N3O5P Creatine phosphate, a phosphoric acid derivative of creatine which contains an energy-rich phosphate bond; it is present in muscle and other tissues, and during the anaerobic phase of muscular contraction it hydrolyzes to creatine and phosphate and makes energy available. Abbreviated PC. Phosphocreatine (creatine phosphate, creatine phosphoric acid), a product of creatine phosphorylation; an energy-rich compound. 
Phosphocreatine was first discovered in 1927 in fresh specimens of muscle tissue. It can be prepared by treating creatine with POCI3 in an alkaline medium. One of the energy sources for muscle contraction is the readily reversible decomposition of phosphocreatine, catalyzed by the enzyme creatinase: phosphocreatine + ADP ⇄ creatine + ATP. A decrease in the ATP content in the tissues leads to the decomposition of phosphocreatine; an increase in ATP content leads to its synthesis. Thus, phosphocreatine forms a reserve of energy-rich phosphate, both the phosphate and stored energy of which can be used in the formation of ATP. In tissues, phosphocreatine undergoes gradual spontaneous decomposition to yield inorganic phosphate and creatinine, which is eliminated with the urine. Arginine phosphate replaces phosphocreatine in many invertebrates (for example, insects). N. P. MESHKOVA phosphocreatine
phosphocreatine (PC) [fos″fo-kre´ah-tin] a compound of creatine and phosphoric acid occurring in muscle, being the most important storage form of high-energy phosphate, the energy source in muscle contraction.phos·pho·cre·a·tine (fos'fō-krē'ă-tēn), A phosphagen; a compound of creatine (through its NH2 group) with phosphoric acid; a source of energy in the contraction of vertebrate muscle, its breakdown furnishing phosphate for the resynthesis of ATP from ADP by creatine kinase. Compare: phosphoarginine. Synonym(s): creatine phosphate, Nω-phosphonocreatinephosphocreatine (fŏs′fō-krē′ə-tēn′) also phosphocreatin (-tĭn)n. An organic compound, C4H10N3O5P, found in muscle tissue and capable of storing and providing energy for muscular contraction. Also called creatine phosphate.phos·pho·cre·a·tine (PCr) (fos'fō-krē'ă-tēn) A phosphagen; a compound of creatine with phosphoric acid; a source of energy in the contraction of vertebrate muscle, its breakdown furnishing phosphate for the resynthesis of adenosine triphosphate from adenosine diphosphate by creatine kinase.
Synonym(s): creatine phosphate, Nω-phosphonocreatine. phosphocreatine a compound used in the production of ATP from ADP in muscles, being converted to creatine with the release of inorganic phosphorus.AcronymsSeePCRphosphocreatine
Related to phosphocreatine: creatine kinaseSynonyms for phosphocreatinenoun an organic compound of creatine and phosphoric acidSynonyms- creatine phosphate
- creatine phosphoric acid
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