Glycerol-3-phosphate 1-dehydrogenase (NADP )
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Glycerol-3-phosphate 1-dehydrogenase (NADP )
''sn''-Glycerol 3-phosphate is the organic ion with the formula HOCH2CH(OH)CH2OPO32-. It is one of two stereoisomers of the ester of phosphoric acid, dibasic phosphoric acid (HOPO32-) and glycerol. It is a component of bacterial and eukaryotic glycerophospholipids. From a historical reason, it is also known as -glycerol 3-phosphate, -glycerol 1-phosphate, -α-glycerophosphoric acid. Biosynthesis Glycerol 3-phosphate is synthesized by reducing dihydroxyacetone phosphate (DHAP), an intermediate in glycolysis. The reduction is catalyzed by glycerol-3-phosphate dehydrogenase. DHAP and thus glycerol 3-phosphate can also be synthesized from amino acids and citric acid cycle intermediates via the glyceroneogenesis pathway. : + NAD(P)H + H+ → + NAD(P)+ It is also synthesized by the phosphorylation of glycerol, which is generated by hydrolysis of fats. This esterification is catalyzed by glycerol kinase. : + Adenosine triphosphate, ATP → + Adenosine diphosphate, ADP Metabolism ...
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Glycerol 1-phosphate
''sn''-Glycerol 1-phosphate is the conjugate base of a phosphoric ester of glycerol. It is a component of ether lipids, which are common for archaea. Biosynthesis and metabolism Glycerol 1-phosphate is synthesized by reducing dihydroxyacetone phosphate (DHAP), a glycolysis intermediate, with sn-glycerol-1-phosphate dehydrogenase, ''sn''-glycerol-1-phosphate dehydrogenase. DHAP and thus glycerol 1-phosphate is also possible to be synthesized from amino acids and citric acid cycle intermediates via glyconeogenesis, gluconeogenesis pathway. : + NAD(P)H + H+ → + NAD(P)+ Glycerol 1-phosphate is a starting material for ''de novo'' synthesis of ether lipids, such as those derived from archaeol and caldarchaeol. It is first geranylgeranylated on its ''sn''-3 position by a cytosolic enzyme, phosphoglycerol geranylgeranyltransferase. A second geranylgeranyl group is then added on the ''sn''-2 position making unsaturated archaetidic acid. Lipid divide Organisms other than archaea ...
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