Both ATP and CTP Are Allosteric Regulators of the Enzyme

question 15

Multiple Choice

Both ATP and CTP are allosteric regulators of the enzyme aspartate transcarbamoylase. Which of the following correctly identifies the activities of these two regulators?

• A)ATP: activator; CTP: activator
• B)ATP: activator; CTP: inhibitor
• C)ATP: inhibitor; CTP: activator
• D)ATP: inhibitor; CTP: inhibitor
• E)none of the above

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