xanthine
(noun)
a precursor of uric acid found in many organs of the body
Examples of xanthine in the following topics:
-
Nitrogenous Waste in Birds and Reptiles: Uric Acid
- The enzyme xanthine oxidase makes uric acid from xanthine and hypoxanthine, which in turn are produced from other purines.
- Xanthine oxidase is a large enzyme whose active site consists of the metal, molybdenum, bound to sulfur and oxygen.