Which class of proteins interacts with a heterotrimeric intracellular protein?
A) receptor tyrosine kinases
B) TNF receptor family
C) G protein-coupled receptors
D) nuclear transmembrane proteins

Question

Quizplus · Accepted Answer

G protein-coupled receptors (GPCRs) interact with heterotrimeric intracellular proteins, specifically the alpha, beta, and gamma subunits of G proteins, to transmit signals across the cell membrane. These receptors are involved in a wide range of physiological processes and are known targets for many pharmaceutical drugs. Receptor tyrosine kinases (RTKs) and TNF receptor family proteins do not interact with heterotrimeric intracellular proteins in the same way as GPCRs do. Nuclear transmembrane proteins are also not typically associated with G proteins.

Which Class of Proteins Interacts with a Heterotrimeric Intracellular Protein