Problem

Draw substrate saturation curves for the substrates of CTP synthetase which show both posi...

Draw substrate saturation curves for the substrates of CTP synthetase which show both positive and negative cooperativity

CTP synthetase catalyzes the synthesis of CTP from UTP:

UTP + ATP + glutamineCTP + glutamate + ADP + Pi

The substrates UTP and ATP show positive cooperativity in their binding to the enzyme, which is anα4-type homotetramer. However, the other substrate, glutamine, shows negative cooperativity. Draw substrate saturation curves of the form v versus [S]/K0.5 for each of these three substrates that illustrate these effects.

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Solutions For Problems in Chapter 15