Guanosine phosphorylase

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Template:Short description Template:Infobox enzyme In enzymology, a guanosine phosphorylase (EC 2.4.2.15) is an enzyme that catalyzes the chemical reaction

guanosine + phosphate guanine + alpha-D-ribose 1-phosphate

Thus, the two substrates of this enzyme are guanosine and phosphate, whereas its two products are guanine and alpha-D-ribose 1-phosphate.

This enzyme belongs to the family of glycosyltransferases, specifically the pentosyltransferases. The systematic name of this enzyme class is guanosine:phosphate alpha-D-ribosyltransferase. This enzyme participates in purine metabolism.[1]

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