Choline-phosphate cytidylyltransferase

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choline-phosphate cytidylyltransferase
Identifiers
EC no. 2.7.7.15
CAS no. 9026-34-0
Databases
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BRENDA BRENDA entry
ExPASy NiceZyme view
KEGG KEGG entry
MetaCyc metabolic pathway
PRIAM profile
PDB structures RCSB PDB PDBe PDBsum
Gene Ontology AmiGO / QuickGO
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NCBI proteins

Choline-phosphate cytidylyltransferase (EC 2.7.7.15) is an enzyme that catalyzes the chemical reaction

CTP + choline phosphate diphosphate + CDP-choline

where the two substrates of this enzyme are CTP and choline phosphate, and the two products are diphosphate and CDP-choline. It is responsible for regulating phosphatidylcholine content in membranes.

This enzyme belongs to the family of transferases, specifically those transferring phosphorus-containing nucleotide groups (nucleotidyltransferases). The systematic name of this enzyme class is CTP:choline-phosphate cytidylyltransferase. Other names in common use include phosphorylcholine transferase, CDP-choline pyrophosphorylase, CDP-choline synthetase, choline phosphate cytidylyltransferase, CTP-phosphocholine cytidylyltransferase, CTP:phosphorylcholine cytidylyltransferase, cytidine diphosphocholine pyrophosphorylase, phosphocholine cytidylyltransferase, phosphorylcholine cytidylyltransferase, and phosphorylcholine:CTP cytidylyltransferase. This enzyme participates in aminophosphonate metabolism and glycerophospholipid metabolism.

Structural studies

As of late 2007, two structures have been solved for this class of enzymes, with PDB accession codes 1PEH and 1PEI.

Related Research Articles

<span class="mw-page-title-main">2-C-methyl-D-erythritol 4-phosphate cytidylyltransferase</span> Class of enzymes

In enzymology, a 2-C-methyl-D-erythritol 4-phosphate cytidylyltransferase is an enzyme that catalyzes the chemical reaction:

In enzymology, a 3-deoxy-manno-octulosonate cytidylyltransferase is an enzyme that catalyzes the chemical reaction

In enzymology, a CDP-diacylglycerol—serine O-phosphatidyltransferase is an enzyme that catalyzes the chemical reaction

In enzymology, a ceramide cholinephosphotransferase is an enzyme that catalyzes the chemical reaction

In enzymology, a cytidylate kinase is an enzyme that catalyzes the chemical reaction

<span class="mw-page-title-main">Diacylglycerol cholinephosphotransferase</span>

In enzymology, a diacylglycerol cholinephosphotransferase is an enzyme that catalyzes the chemical reaction

In enzymology, a D-ribitol-5-phosphate cytidylyltransferase is an enzyme that catalyzes the chemical reaction

In enzymology, an ethanolamine-phosphate cytidylyltransferase is an enzyme that catalyzes the chemical reaction

In enzymology, an ethanolaminephosphotransferase is an enzyme that catalyzes the chemical reaction

<span class="mw-page-title-main">Glucose-1-phosphate adenylyltransferase</span>

In enzymology, a glucose-1-phosphate adenylyltransferase is an enzyme that catalyzes the chemical reaction

In enzymology, a glucose-1-phosphate cytidylyltransferase is an enzyme that catalyzes the chemical reaction

<span class="mw-page-title-main">Glucose-1-phosphate thymidylyltransferase</span>

In enzymology, a glucose-1-phosphate thymidylyltransferase is an enzyme that catalyzes the chemical reaction

In enzymology, a glycerol-3-phosphate cytidylyltransferase is an enzyme that catalyzes the chemical reaction

<span class="mw-page-title-main">N-acylneuraminate cytidylyltransferase</span>

In enzymology, a N-acylneuraminate cytidylyltransferase is an enzyme that catalyzes the chemical reaction

<span class="mw-page-title-main">Pantetheine-phosphate adenylyltransferase</span>

In enzymology, a pantetheine-phosphate adenylyltransferase is an enzyme that catalyzes the chemical reaction

Phosphatidate cytidylyltransferase (CDS) is the enzyme that catalyzes the synthesis of CDP-diacylglycerol from cytidine triphosphate and phosphatidate.

In enzymology, a sphingosine cholinephosphotransferase is an enzyme that catalyzes the chemical reaction

CCA tRNA nucleotidyltransferase is an enzyme with systematic name CTP,CTP,ATP:tRNA cytidylyl,cytidylyl,adenylyltransferase. This enzyme catalyses the following chemical reaction

<span class="mw-page-title-main">PCYT1A</span> Protein-coding gene in the species Homo sapiens

Choline-phosphate cytidylyltransferase A is an enzyme that in humans is encoded by the PCYT1A gene.

<span class="mw-page-title-main">CDP-choline pathway</span>

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. The CDP-choline pathway represents one half of what is known as the Kennedy pathway. The other half is the CDP-ethanolamine pathway which is responsible for the biosynthesis of the phospholipid phosphatidylethanolamine (PE).

References


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