The __________ is a specific type of _.
A) "GRK; $\beta$ARK"
B) "$\beta$-adrenergic receptor kinase; $\beta$-arrestin"
C) "regulator of G protein signaling; GTPase activating protein"
D) "GTPase activating protein; guanine nucleotide exchange factor"

Question

Quizplus · Accepted Answer

C) "regulator of G protein signaling; GTPase activating protein" is correct because regulators of G protein signaling (RGS) specifically act as GTPase activating proteins (GAPs) for G protein alpha subunits, accelerating the hydrolysis of GTP to GDP and thus inactivating the G protein, which is a key step in the regulation of signal transduction pathways.

The __________ Is a Specific Type of _ β\betaβ ARK" B)

The __________ Is a Specific Type of _ $\beta$ ARK"
B)