Glutamine-PRPP Amidotransferase Is a Tetrameric Enzyme That Displays Sigmoidal Kinetics

question 10

Short Answer

Glutamine-PRPP amidotransferase is a tetrameric enzyme that displays sigmoidal kinetics when no inhibitors are present.In the presence of either GTP or ATP the kinetics curve is sigmoidal.Why does this difference in kinetics occur?

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