phosphoribosylpyrophosphate

phos·pho·ri·bo·syl·py·ro·phos·phate .fäs-phō-.rī-bə-.sil-.pī-rō-'fäs-.fāt n a substance that is formed enzymatically from ATP and the phosphate of ribose and that plays a fundamental role in nucleotide synthesis

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(PRPP) phos·pho·ri·bo·syl·py·ro·phos·phate (PRPP) (fos″fo-ri″bo-səl-pi″ro-fosґfāt) an intermediate in the formation of purines and of purine and pyrimidine nucleotides.

Medical dictionary. 2011.

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