SEARCH Articles Figures Tables Glutamine phosphoribosylpyrophosphate Glutamine phosphoribosylpyrophosphate amidotransferase Phosphoribosylpyrophosphate (PRPP Phosphoribosylpyrophosphate amidotransferase Phosphoribosylpyrophosphate inhibition Phosphoribosylpyrophosphate properties Phosphoribosylpyrophosphate regulation Phosphoribosylpyrophosphate synthetase Phosphoribosylpyrophosphate synthetase superactivity Phosphoribosylpyrophosphate, effect Phosphoribosylpyrophosphate, synthesis Purines phosphoribosylpyrophosphate