It would be useful to determine if the mechanism of action for the XFFXFF receptor is similar to that of estrogen or epinephrine.To test this,you use a nonhydrolyzable analogue of GTP in the reaction mixture.If the mechanism is still similar to that of epinephrine,you would expect the cellular responses would be
A)blocked.
B)prolonged.
C)delayed.
D)both choices B and C
E)The mechanism cannot be determined.

Question

Quizplus · Accepted Answer

A nonhydrolyzable analogue of GTP would prevent the GTP from being converted back to GDP, leading to prolonged activation of G-proteins, similar to the mechanism of epinephrine.

It Would Be Useful to Determine If the Mechanism of Action