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| Amidophosphoribosyltransferase Glutamine Phosphoribosyl Pyrophosphate Amidotransferase | Phosphoribosyl Pyrophosphate Amidotransferase | Glutamine-Amidophosphoribosyltransferase | Phosphoribosyldiphosphate 5-Amidotransferase | Glutamine Amidophosphoribosyltransferase An enzyme, involved in the early steps of purine nucleotide biosynthesis, that catalyzes the formation of 5-phosphoribosylamine from glutamine and phosphoribosylpyrophosphate. EC 2.4.2.14. |