Which of the Following is NOT Typically True About G

Question

Which of the following is NOT typically true about G proteins?
A)They act as second messengers.
B)They can be stimulatory for second-messenger production.
C)They can be inhibitory for second-messenger production.
D)They can act as transducers for activated receptors by opening or closing ion channels.

Accepted Answer

G proteins themselves do not act as second messengers; instead, they are involved in the signal transduction pathways that lead to the production of second messengers.