MetaCyc Reaction:

Superclasses: Reactions Classified By Conversion Type Simple Reactions Chemical Reactions
Reactions Classified By Substrate Small-Molecule Reactions

EC Number:

The reaction direction shown, that is, A + B ↔ C + D versus C + D ↔ A + B, is in accordance with the direction in which it was curated.

Mass balance status: Balance undetermined; a substrate lacks a chemical formula

Instance reaction:
CMP + H2O → cytosine + D-ribofuranose 5-phosphate (

Enzyme Commission Primary Name: pyrimidine-5′-nucleotide nucleosidase

Enzyme Commission Synonyms: pyrimidine nucleotide N-ribosidase, Pyr5N

Enzyme Commission Summary:
Also acts on dUMP, dTMP and dCMP.

Citations: [Imada67]

Unification Links: KEGG:R02171

Relationship Links: BRENDA:EC: , ENZYME:EC: , IUBMB-ExplorEnz:EC:


Imada67: Imada, A. (1967). "Degradation of pyrimidine nucleotides by enzyme systems of Streptomyces. II. Pyrimidine 5-nucleotide phosphoribo(deoxyribo) hydrolase of Streptomyces virginiae." J. Gen. Appl. Microbiol.

Report Errors or Provide Feedback
Please cite the following article in publications resulting from the use of MetaCyc: Caspi et al, Nucleic Acids Research 42:D459-D471 2014
Page generated by SRI International Pathway Tools version 19.0 on Thu Oct 8, 2015, biocyc13.