In urea synthesis, the amino acid functioning solely as an enzyme activator:
Correct Answer: N-acetyl glutamate
Description: The major regulatory step is catalyzed by CPS-I where the positive effector is N-acetyl glutamate (NAG). It is formed from glutamate and acetyl CoA. Arginine is an activator of NAG synthase.
Reference: Vasudevan 7th ed, pg 205
Category:
Biochemistry
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