QuickView for guanine (compound)

The nucleoside phosphorylases catalyze the phosphorolytic breakdown of the N-glycosidic bond in the nucleoside molecule, with the formation of the corresponding free bases and pentose-1-phosphate. This protein can degrade all purine nucleosides except adenosine and deoxyadenosine

Acts on guanine, xanthine and to a lesser extent hypoxanthine

Isoform GCH-1 is the functional enzyme, the potential function of the enzymatically inactive isoforms remains unknown