SEARCH Articles Figures Tables 9-£>-Hypoxanthines Guanin Guanine Guanine-phosphoribosyl Guanine-phosphoribosyl transferase Hypoxanthin Hypoxanthine Hypoxanthine phosphoribosyl Hypoxanthine-guanine Hypoxanthine-guanine phosphoribosyl Hypoxanthine-guanine phosphoribosyl transferase Phosphoribosyl Phosphoribosyl transferases Transferase, hypoxanthine