<unk>  is a nucleoside that is formed when hypoxanthine is attached to a ribose ring (also known as a ribofuranose) via a β-N9-glycosidic bond. It was discovered in 1965 in analysis of RNA transferase.<unk>  is commonly found in tRNAs and is essential for proper translation of the genetic code in wobble base pairs. Wobble base pairs for<unk>  and guanine Knowledge of<unk>  metabolism has led to advances in immunotherapy in recent decades.<unk>  monophosphate is oxidised by the enzyme<unk>  monophosphate dehydrogenase, yielding xanthosine monophosphate, a key precursor in purine metabolism. Mycophenolate mofetil is an anti-metabolite, anti-proliferative drug that acts as an inhibitor of<unk>  monophosphate dehydrogenase. It is used in the treatment of a variety of autoimmune diseases including granulomatosis with polyangiitis because the uptake of purine by actively dividing B cells can exceed 8 times that of normal body cells, and, therefore, this set of white cells (which cannot operate purine salvage pathways) is selectively targeted by the purine deficiency resulting from<unk>  monophosphate dehydrogenase (IMD) inhibition.
Inosine
Choline
Homocysteine
Cysteamine
Inositol
Uridine triacetate
Fructosamine
Nicotinamide