GLUTAMINE-PRPP AMIDOTRANSFERASE (PURF)-INDEPENDENT PHOSPHORIBOSYL AMINE SYNTHESIS FROM RIBOSE-5PHOSPHATE AND GLUTAMINE OR ASPARAGINE* Mark J. Koenigsknecht‡, Itzel Ramos‡¶, and Diana M. Downs§ From the Department of Bacteriology, University of Wisconsin, Madison Madison, WI 53706 Running title: alternative phosphoribosyl amine synthesis Address correspondence to: Diana Downs, Department of Bact...