| choline-phosphate cytidylyltransferase | <enzyme> An enzyme that catalyses the transfer of cytidylate (CMP) to choline phosphate to form CDPcholine. It is the rate-limiting enzyme in the choline pathway for the biosynthesis of phosphatidylcholine. Its activity is increased by glucocorticoids. Registry number: EC 2.7.7.15 (12 Dec 1998) |
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| choline phosphokinase | <enzyme> An enzyme that is active in the first step of choline phosphoglyceride (lecithin) biosynthesis by catalyzing the phosphorylation of choline to phosphorylcholine in the presence of ATP. Ethanolamine and its methyl and ethyl derivatives can also act as acceptors. Chemical name: ATP:choline phosphotransferase Registry number: EC 2.7.1.32 (12 Dec 1998) |
| choline theophyllinate | A true salt of theophylline; it has mild diuretic, myocardial stimulating vasodilator, and bronchodilator actions, with the same uses as theophylline, but is better absorbed and less irritating. Synonym: choline theophyllinate. (05 Mar 2000) |
| cytidine diphosphate choline | <chemical> Donor of choline in biosynthesis of choline-containing phosphoglycerides. Pharmacological action: nootropic agents. Chemical name: Cytidine 5'-(trihydrogen diphosphate), P'-(2-(trimethylammonio)ethyl) ester, inner salt (12 Dec 1998) |