Choline-phosphate cytidylyltransferase
| choline-phosphate cytidylyltransferase | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Identifiers | |||||||||
| EC no. | 2.7.7.15 | ||||||||
| CAS no. | 9026-34-0 | ||||||||
| Databases | |||||||||
| IntEnz | IntEnz view | ||||||||
| BRENDA | BRENDA entry | ||||||||
| ExPASy | NiceZyme view | ||||||||
| KEGG | KEGG entry | ||||||||
| MetaCyc | metabolic pathway | ||||||||
| PRIAM | profile | ||||||||
| PDB structures | RCSB PDB PDBe PDBsum | ||||||||
| Gene Ontology | AmiGO / QuickGO | ||||||||
| |||||||||
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
[edit]As of late 2007, two structures have been solved for this class of enzymes, with PDB accession codes 1PEH and 1PEI.
References
[edit]- BORKENHAGEN LF, KENNEDY EP (1957). "The enzymatic synthesis of cytidine diphosphate choline". J. Biol. Chem. 227 (2): 951–62. doi:10.1016/S0021-9258(18)70774-6. PMID 13463016.
- KENNEDY EP, WEISS SB (1956). "The function of cytidine coenzymes in the biosynthesis of phospholipides". J. Biol. Chem. 222 (1): 193–214. doi:10.1016/S0021-9258(19)50785-2. PMID 13366993.
- Williams-Ashman HG, Banks J (1956). "Participation of cytidine coenzymes in the metabolism of choline by seminal vesicles". J. Biol. Chem. 223 (1): 509–521. doi:10.1016/S0021-9258(18)65160-9. PMID 13376620.
