phosphocholine

Choline O-phosphate; important in choline metabolism, e.g., in the biosynthesis of lecithins. SYN: phosphorylcholine.
- p. cytidylyltransferase an enzyme that catalyzes the reaction of p. with CTP to form pyrophosphate and CDP-choline; the rate-limiting step of lecithin biosynthesis; the cytosolic form of the enzyme is inactive (a phosphorylated form of the enzyme).
- p. diacylglycerol transferase an enzyme in lecithin biosynthesis that catalyzes the reaction of 1,2-diacylglycerol with CDP-choline to form CMP and phosphatidylcholine.

Medical dictionary. 2011.

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  • 1-acylglycerophosphocholine O-acyltransferase — In enzymology, a 1 acylglycerophosphocholine O acyltransferase (EC number|2.3.1.23) is an enzyme that catalyzes the chemical reaction:acyl CoA + 1 acyl sn glycero 3 phosphocholine ightleftharpoons CoA + 1,2 diacyl sn glycero 3 phosphocholineThus …   Wikipedia

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  • Phosphatidylcholine desaturase — In enzymology, a phosphatidylcholine desaturase (EC number|1.3.1.35) is an enzyme that catalyzes the chemical reaction:1 acyl 2 oleoyl sn glycero 3 phosphocholine + NAD+ ightleftharpoons 1 acyl 2 linoleoyl sn glycero 3 phosphocholine + NADH +… …   Wikipedia

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