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Citicoline , also known as cytidine diphosphate-choline (CDP-choline) or cytidine 5'-diphosphocholine is an intermediate in the generation of phosphatidylcholine from choline, a common biochemical process in cell membranes. Citicoline is naturally occurring in the cells of human and animal tissue, in particular the organs.
Dipalmitoylphosphatidylcholine (DPPC) is a phospholipid (and a lecithin) consisting of two C 16 palmitic acid groups attached to a phosphatidylcholine head-group.. It is the main constituent of pulmonary surfactants, which reduces the work of breathing and prevents alveolar collapse during breathing.
Choline-phosphate cytidylyltransferase (EC 2.7.7.15) is an enzyme that catalyzes the chemical reaction CTP + choline phosphate ⇌ {\displaystyle \rightleftharpoons } diphosphate + CDP-choline where the two substrates of this enzyme are CTP and choline phosphate , and the two products are diphosphate and CDP-choline .
Mn 2+-dependent ADP-ribose/CDP-alcohol diphosphatase (EC 3.6.1.53, Mn2+-dependent ADP-ribose/CDP-alcohol pyrophosphatase, ADPRibase-Mn) is an enzyme with systematic name CDP-choline phosphohydrolase. [ 1 ] [ 2 ] This enzyme catalyses the following chemical reaction
In enzymology, a phosphatidylcholine synthase (EC 2.7.8.24) is an enzyme that catalyzes the chemical reaction. CDP-diacylglycerol + choline CMP + phosphatidylcholine. Thus, the two substrates of this enzyme are CDP-diacylglycerol and choline, whereas its two products are CMP and phosphatidylcholine.
1-Oleoyl-2-palmitoyl-phosphatidylcholine. Phosphatidylcholines (PC) are a class of phospholipids that incorporate choline as a headgroup.They are a major component of biological membranes and can easily be obtained from a variety of readily available sources, such as egg yolk or soybeans, from which they are mechanically or chemically extracted using hexane.
Structures and localization of the enzymes in the CDP-choline pathway. [1]: 415 The CDP-choline pathway, first identified by Eugene P. Kennedy in 1956, is the predominant mechanism by which mammalian cells synthesize phosphatidylcholine (PC) for incorporation into membranes or lipid-derived signalling molecules. [1] [2] The CDP-choline pathway ...
Acetylcholine precursors and prodrugs like choline, phosphatidylcholine , citicoline (CDP-choline), and choline alphoscerate (α-GPC) are known and have been researched. [ 45 ] References