Adenylyl cyclase Question 104 options: A. catalyzes the ADP ribosylation of prot

Question

Adenylyl cyclase

Question 104 options:

A. catalyzes the ADP ribosylation of proteins.

B. catalyzes the dephosphorylation of phosphoSer residues on enzymes.

C. catalyzes the hydrolysis of ATP to ADP and Pi.

D. diffuses to the nucleus to function as a transcription factor.

E. is regulated by protein-protein interactions.

A. catalyzes the ADP ribosylation of proteins.

B. catalyzes the dephosphorylation of phosphoSer residues on enzymes.

C. catalyzes the hydrolysis of ATP to ADP and Pi.

D. diffuses to the nucleus to function as a transcription factor.

E. is regulated by protein-protein interactions.

Explanation / Answer

The correct answer is:E. is regulated by protein-protein interactions.

Reason: Adenylyl cyclase is activated or inhibited by G-proteins that interact with it.Gs stimulates while Gi inhibits the activity.

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