5-phospho-alpha-d-ribosyl-1-pyrophosphate

(redirected from 5-phospho-a-d-ribosyl-1-pyrophosphate)

5-phos·pho-α-d-ri·bo·syl-1-py·ro·phos·phate (PPRibp, PPRP, PRPP),

(fos'fō ri-bō'sil pī'rō-fos'fāt),
d-ribose carrying a phosphate group on ribose carbon-5 and a pyrophosphate group on ribose carbon-1; an intermediate in the formation of the pyrimidine and purine nucleotides as well as NAD+.