Which of the following statements regarding heterotrimeric G proteins in a resting state is true?

a. GDP is bound to the ? subunit in a complex with both the ? and ? subunits.
b. GDP is bound to the ? subunit in a complex with both the ? and ? subunits.
c. GTP is bound to the ? subunit in a complex with both the ? and ? subunits.
d. The proteins are in a complex with G protein-coupled receptors.


Ans: b. GDP is bound to the ? subunit in a complex with both the ? and ? subunits.

Biology & Microbiology

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