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SlideshowReport

A phosphoribosyltransferase reaction

Description
A phosphoribosyltransferase reaction catalyzes the reversible transfer of a free base to the ribose of PRPP, displacing pyrophosphate and producing a nucleoside monophosphate.

Because the deoxyribose analog of PRPP is absent from most cells, these enzymes are not involved directly in deoxyribonucleotide metabolism.
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