A cyclic nucleotide (cNMP) is a single-phosphate nucleotide with a cyclic bond arrangement between the sugar and phosphate groups. Like other nucleotides, cyclic nucleotides are composed of three functional groups: a sugar, a nitrogenous base, and a single phosphate group. As can be seen in the cyclic adenosine monophosphate (cAMP) and cyclic guanosine monophosphate (cGMP) images, the 'cyclic' portion consists of two bonds between the phosphate group and the 3' and 5' hydroxyl groups of the sugar, very often a ribose.
In chemistry, a phosphodiester bond occurs when exactly two of the hydroxyl groups in phosphoric acid react with hydroxyl groups on other molecules to form two ester bonds. The "bond" involves this linkage C−O−PO−2O−C. Discussion of phosphodiesters is dominated by their prevalence in DNA and RNA, but phosphodiesters occur in other biomolecules, e.g. acyl carrier proteins.
Dihydroxyacetone phosphate (DHAP, also glycerone phosphate in older texts) is the anion with the formula HOCH2C(O)CH2OPO32-. This anion is involved in many metabolic pathways, including the Calvin cycle in plants and glycolysis. It is the phosphate ester of dihydroxyacetone.
Phosphoinositide phospholipase C is a family of eukaryotic intracellular enzymes that play an important role in signal transduction processes. These enzymes belong to a larger superfamily of Phospholipase C. Other families of phospholipase C enzymes have been identified in bacteria and trypanosomes. Phospholipases C are phosphodiesterases.
3′,5′-cyclic-nucleotide phosphodiesterases (EC 3.1.4.17) are a family of phosphodiesterases. Generally, these enzymes hydrolyze a nucleoside 3′,5′-cyclic phosphate to a nucleoside 5′-phosphate:
The enzyme glycosylphosphatidylinositol diacylglycerol-lyase catalyzes the reaction
The enzyme phosphatidylinositol diacylglycerol-lyase catalyzes the following reaction:
The enzyme 2′,3′-cyclic-nucleotide 2'-phosphodiesterase (EC 3.1.4.16) catalyzes the reaction
The enzyme 3′,5′-cyclic-GMP phosphodiesterase (EC 3.1.4.35) catalyzes the reaction
The enzyme glycerophosphocholine phosphodiesterase (EC 3.1.4.2) catalyzes the reaction
The enzyme glycerophosphodiester phosphodiesterase ({EC 3.1.4.46) catalyzes the reaction
The enzyme glycerophosphoinositol inositolphosphodiesterase (EC 3.1.4.43) is an enzyme that catalyzes the chemical reaction
In enzymology, a 1-acylglycerol-3-phosphate O-acyltransferase is an enzyme that catalyzes the chemical reaction
In enzymology, a 2-acylglycerol-3-phosphate O-acyltransferase is an enzyme that catalyzes the chemical reaction
In enzymology, a digalactosyldiacylglycerol synthase is an enzyme that catalyzes the chemical reaction
In enzymology, a CDP-diacylglycerol—glycerol-3-phosphate 3-phosphatidyltransferase is an enzyme that catalyzes the chemical reaction
In enzymology, a CDP-diacylglycerol—serine O-phosphatidyltransferase is an enzyme that catalyzes the chemical reaction
2′,3′-Cyclic-nucleotide 3'-phosphodiesterase is an enzyme that in humans is encoded by the CNP gene.
3′,5′-cyclic-AMP phosphodiesterase (EC 3.1.4.53, cAMP-specific phosphodiesterase, cAMP-specific PDE, PDE1, PDE2A, PDE2B, PDE4, PDE7, PDE8, PDEB1, PDEB2) is an enzyme with systematic name 3′,5′-cyclic-AMP 5′-nucleotidohydrolase. It catalyses the following reaction
Glycerophosphohydrolase may refer to:
