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ENZYME entry: EC 2.4.2.3

Accepted Name
uridine phosphorylase.
Alternative Name(s)
pyrimidine phosphorylase.
UPase.
UrdPase.
Reaction catalysed
phosphate + uridine <=> alpha-D-ribose 1-phosphate + uracil
Comment(s)
  • The enzyme participates the the pathways of pyrimidine ribonucleosides degradation and salvage.
  • The mammalian enzyme also accepts 2'-deoxyuridine.
  • Formerly EC 2.4.2.23.
Cross-references
BRENDA2.4.2.3
EC2PDB2.4.2.3
ExplorEnz2.4.2.3
PRIAM enzyme-specific profiles2.4.2.3
KEGG Ligand Database for Enzyme Nomenclature2.4.2.3
IUBMB Enzyme Nomenclature2.4.2.3
IntEnz2.4.2.3
MEDLINEFind literature relating to 2.4.2.3
MetaCyc2.4.2.3
Rhea expert-curated reactions2.4.2.3
UniProtKB/Swiss-Prot
P12758, UDP_ECOLI;  P43770, UDP_HAEIN;  O08444, UDP_KLEAE;  
P52671, UDP_KLEPN;  P19662, UDP_LACRH;  P0A1F7, UDP_SALTI;  
P0A1F6, UDP_SALTY;  O83990, UDP_TREPA;  Q16831, UPP1_HUMAN;  
P52624, UPP1_MOUSE;  O95045, UPP2_HUMAN;  Q8CGR7, UPP2_MOUSE;  
G4VGI0, UPPA_SCHMA;  

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All ENZYME / UniProtKB/Swiss-Prot entries corresponding to 2.4.2.-
All ENZYME / UniProtKB/Swiss-Prot entries corresponding to 2.4.-.-
All ENZYME / UniProtKB/Swiss-Prot entries corresponding to 2.-.-.-