Biology:D-ribitol-5-phosphate cytidylyltransferase
| D-ribitol-5-phosphate cytidylyltransferase | |||||||||
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| Identifiers | |||||||||
| EC number | 2.7.7.40 | ||||||||
| CAS number | 9027-07-0 | ||||||||
| 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 | ||||||||
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In enzymology, a D-ribitol-5-phosphate cytidylyltransferase (EC 2.7.7.40) is an enzyme that catalyzes the chemical reaction
- CTP + D-ribitol 5-phosphate [math]\displaystyle{ \rightleftharpoons }[/math] diphosphate + CDP-ribitol
Thus, the two substrates of this enzyme are CTP and D-ribitol 5-phosphate, whereas its two products are diphosphate and CDP-ribitol.
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:D-ribitol-5-phosphate cytidylyltransferase. Other names in common use include CDP ribitol pyrophosphorylase, cytidine diphosphate ribitol pyrophosphorylase, ribitol 5-phosphate cytidylyltransferase, and cytidine diphosphoribitol pyrophosphorylase. This enzyme participates in pentose and glucuronate interconversions.
References
- "Pyrophosphorolysis and enzymic synthesis of cytidine diphosphate glycerol and cytidine diphosphate ribitol". The Biochemical Journal 82: 297–312. February 1962. PMID 13911452.
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