Xanthine phosphoribosyltransferase
In enzymology, a xanthine phosphoribosyltransferase (EC2.4.2.22) is an enzyme that catalyzes the chemical reaction
Thus, the two substrates of this enzyme are XMP and diphosphate, whereas its two products are 5-phospho-alpha-D-ribose 1-diphosphate and xanthine.