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PRPP synthetase

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PRPP synthetase. Nucleoside phosphorylases. Phosphoribosyl transferases. The committed step of de novo purine nucleotide biosynthesis. Phosphoribosylamine synthase: cooperativity with respect to PRPP concentration & product inhibition. Outline of de novo purine nucleotide biosynthesis.

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PRPP synthetase

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Presentation Transcript

  1. PRPP synthetase Nucleoside phosphorylases Phosphoribosyl transferases

  2. The committed step of de novo purine nucleotide biosynthesis

  3. Phosphoribosylamine synthase: cooperativity with respect to PRPP concentration & product inhibition

  4. Outline of de novo purine nucleotide biosynthesis

  5. Outline of de novo pyrimidine nucleotide biosynthesis

  6. Enzymes I. Ribonucleotide reductaseII. Nucleotide diphosphate kinase III. dCMP kinaseIV. dUTP diphosphohydrolaseV. dCMP deaminaseVI. Thymidylate synthaseVII. FH2 reductase

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