Which of the following correctly explains the covalent modification used to control glutamine synthetase?
A)uridylylation activates, deuridylylation inhibits
B)uridylylation inhibits, deuridylylation activates
C)adenylation activates, deadenylation inhibits
D)adenylation inhibits, deadenylation activates
E)phosphorylation inhibits, dephosphorylation activates

Question

Quizplus · Accepted Answer

Adenylylation of glutamine synthetase inhibits its activity, while removal of the adenylyl groups (deadenylylation) activates it. This is a key regulatory mechanism for controlling the enzyme's activity in response to cellular conditions.

Which of the Following Correctly Explains the Covalent Modification Used