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choline (ko´len)

HOCH2CH2N(CH3) 3+; (2-hydroxyethyl)trimethylammonium ion;found in most animal tissues either free or in combination as lecithin (phosphatidylcholine), acetate (acetylcholine), or cytidine diphosphate (cytidine diphosphocholine). It is included in the vitamin B complex; as acetylcholine (choline esterified with acetic acid), it is essential for synaptic transmission. Several salts of choline are used in medicine.lipotropic factor, transmethylation factor;
c. acetylase c. acetyltransferase
c. acetyltransferase an enzyme catalyzing the condensation of choline and acetyl-coenzyme A, forming O-acetylcholine and coenzyme A.c. acetylase;
activated c. cytidine diphosphocholine
c. chloride a lipotropic agent.
c. dihydrogen citrate (2-hydroxyethyl)trimethylammonium citrate;a lipotropic agent.
c. esterase I acetylcholinesterase
c. esterase II cholinesterase
c. kinase an enzyme that catalyzes the formation of O-phosphocholine and ADP from choline and ATP.c. phosphokinase;
c. phosphatase phospholipase D
c. phosphate cytidylyltransferase an enzyme that catalyzes a key step in lecithin biosynthesis: CTP + phosphocholine <-> pyrophosphate + CDP-choline.
c. phosphokinase c. kinase
c. salicylate c. salt of salicyclic acid, an analgesic and antipyretic (because of the salicylate moiety).
c. theophyllinate oxtriphylline


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