Term Name:	guanine phosphoribosyltransferase activity
Synonyms:	GMP pyrophosphorylase activity, GPRT, guanosine 5'-phosphate pyrophosphorylase activity, guanosine phosphoribosyltransferase activity, guanylate pyrophosphorylase activity, guanylic pyrophosphorylase activity
Definition:	Catalysis of the reaction: GMP + diphosphate = guanine + 5-phospho-alpha-D-ribose 1-diphosphate.
Ontology:	GO: Molecular Function [GO:0052657]    QuickGO    AmiGO