Purine catabolism

Summary
Organism
Homo sapiens (human)
Reactome
R-HSA-74259
PubChem
R-HSA-74259
Description
  • The purine bases guanine and hypoxanthine (derived from adenine by events in the purine salvage pathways) are converted to xanthine and then to urate uric acid, which is excreted from the body (Watts 1974). The end-point of this pathway in humans and hominoid primates is unusual. Most other mammals metabolize uric acid further to yield more soluble end products, and much speculation has centered on possible roles for high uric acid levels in normal human physiology.
Click on a node on the pathway to see its details. Glycoproteins are marked with a glycoprotein icon in their name.
Displaying all 2 entries
UniProt ID Protein Name Gene Symbol Pathway Viewer
P21589 5'-nucleotidase
  • NT5
  • NT5E
  • NTE
view
Q9Y2T3 Guanine deaminase
  • GDA
  • KIAA1258
view

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Acknowledgements

Supported by JST NBDC Grant Number JPMJND2204

Partly supported by NIH Common Fund Grant #1U01GM125267-01


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Last updated: April 6, 2026