N-acylneuraminate cytidylyltransferase
| N-acylneuraminate cytidylyltransferase | |||||||||
|---|---|---|---|---|---|---|---|---|---|
 N-acylneuraminate cytidylyltransferase dimer, Neisseria meningitidis | |||||||||
| Identifiers | |||||||||
| EC no. | 2.7.7.43 | ||||||||
| CAS no. | 9067-82-7 | ||||||||
| 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 | ||||||||
| |||||||||
In enzymology, a N-acylneuraminate cytidylyltransferase (EC 2.7.7.43) is an enzyme that catalyzes the chemical reaction
- CTP + N-acylneuraminate diphosphate + CMP-N-acylneuraminate
Thus, the two substrates of this enzyme are CTP and N-acylneuraminate, whereas its two products are diphosphate and CMP-N-acylneuraminate.
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:N-acylneuraminate cytidylyltransferase. Other names in common use include CMP-sialate pyrophosphorylase, CMP-sialate synthase, cytidine 5'-monophosphosialic acid synthetase, CMP-Neu5Ac synthetase, CMP-NeuAc synthetase, acylneuraminate cytidyltransferase, CMP-N-acetylneuraminate synthetase, CMP-N-acetylneuraminate synthase, CMP-N-acetylneuraminic acid synthase, CMP-NANA synthetase, CMP-sialate synthetase, CMP-sialic synthetase, cytidine 5'-monophospho-N-acetylneuraminic acid synthetase, cytidine 5-monophosphate N-acetylneuraminic acid synthetase, cytidine monophosphosialic acid synthetase, cytidine monophosphoacetylneuraminic synthetase, cytidine monophosphosialate pyrophosphorylase, cytidine monophosphosialate synthetase, and acetylneuraminate cytidylyltransferase. This enzyme participates in aminosugars metabolism.
Structural studies
[edit]As of late 2007, three structures have been solved for this class of enzymes, with PDB accession codes 1EYR, 1EZI, and 1QWJ.
References
[edit]- Kean EL, Roseman S (1966). "The sialic acids. X. Purification and properties of cytidine 5'-monophosphosialic acid synthetase". J. Biol. Chem. 241 (23): 5643–50. doi:10.1016/S0021-9258(18)96393-3. PMID 4288894.
