ribose phosphate diphosphokinase activity https://github.com/geneontology/go-ontology/issues/28526 https://github.com/geneontology/go-ontology/issues/31587 Reactome:R-HSA-73580 phosphoribosyl diphosphate synthetase activity PPRibP synthetase activity ribose-phosphate pyrophosphokinase activity GO:0004749 KEGG_REACTION:R01049 PP-ribose P synthetase activity RHEA:15609 Catalysis of the reaction: D-ribose 5-phosphate + ATP = 5-phospho-alpha-D-ribose 1-diphosphate + AMP + 2 H+. ribose-phosphate diphosphokinase activity molecular_function 5-phosphoribose pyrophosphorylase activity pyrophosphoribosylphosphate synthetase activity phosphoribosylpyrophosphate synthetase activity phosphoribosyl-diphosphate synthetase activity 5-phosphoribosyl-alpha-1-pyrophosphate synthetase activity EC:2.7.6.1 5-phosphoribosyl-1-pyrophosphate synthetase activity PRPP synthetase activity Reactome:R-HSA-111215 phosphoribosyl pyrophosphate synthetase activity ATP:D-ribose-5-phosphate diphosphotransferase activity ribose-5-phosphate pyrophosphokinase activity ribophosphate pyrophosphokinase activity MetaCyc:PRPPSYN-RXN phosphoribosylpyrophosphate synthase activity diphosphotransferase activity