CMP-N-acylneuraminate phosphodiesterase

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In enzymology, a CMP-N-acylneuraminate phosphodiesterase (EC is an enzyme that catalyzes the chemical reaction

CMP-N-acylneuraminate + H2O CMP + N-acylneuraminate

Thus, the two substrates of this enzyme are CMP-N-acylneuraminate and H2O, whereas its two products are CMP and N-acylneuraminate.

This enzyme belongs to the family of hydrolases, specifically those acting on phosphoric diester bonds. The systematic name of this enzyme class is CMP-N-acylneuraminate N-acylneuraminohydrolase. Other names in common use include CMP-sialate hydrolase, CMP-sialic acid hydrolase, CMP-N-acylneuraminic acid hydrolase, cytidine monophosphosialic hydrolase, cytidine monophosphosialate hydrolase, cytidine monophosphate-N-acetylneuraminic acid hydrolase, and CMP-N-acetylneuraminate hydrolase.


  • IUBMB entry for
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  • Kean EL, Bighouse KJ (1974). "Cytidine 5'-monophosphosialic acid hydrolase. Subcellular location and properties". J. Biol. Chem. 249: 7813&ndash, 23. PMID 4372219.

External links

The CAS registry number for this enzyme class is 55326-41-5.

Gene Ontology (GO) codes