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Catalysis of the reaction: purine nucleoside + phosphate = purine + alpha-D-ribose 1-phosphate. Catalysis of the transfer of a glycosyl group from one compound (donor) to another (acceptor). Catalysis of the transfer of a pentosyl group from one compound (donor) to another (acceptor).

View Gene Ontology (GO) Term

GO TERM SUMMARY
Name: purine-nucleoside phosphorylase activity
Acc: GO:0004731
Aspect: Molecular Function
Desc: Catalysis of the reaction: purine nucleoside + phosphate = purine + alpha-D-ribose 1-phosphate.
Synonyms:
  • PUNPII
  • purine ribonucleoside phosphorylase activity
  • inosine-guanosine phosphorylase activity
  • inosine phosphorylase activity
  • PNPase activity
  • purine nucleoside phosphorylase activity
  • purine-nucleoside:phosphate ribosyltransferase activity
  • purine deoxyribonucleoside phosphorylase activity
  • PUNPI
  • purine deoxynucleoside phosphorylase activity
Proteins in PDR annotated with:
   This term: 28 [Search]
   Term or descendants: 28 [Search]


[geneontology.org]
INTERACTIVE GO GRAPH

GO:0004731 - purine-nucleoside phosphorylase activity (interactive image map)
YRC Informatics Platform - Version 3.0
Created and Maintained by: Michael Riffle