S C Singer

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The Escherichia coli gene for folylpolyglutamate synthetase-dihydrofolate synthetase was localized to plasmids pLC22-45, 24-31, and 28-44 of the Clarke-Carbon E. coli colony bank (Clarke, L., and(More)
Three enzyme reactions have been reported to catalyze the synthesis of phosphoribosylamine in eukaryotic cells. These activities are glutamine phosphoribosylpyrophosphate (P-Rib-P-P) amidotransferase(More)
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