Most transduction systems for hormones and sensory stimuli that involve trimeric G proteins have in common all of the following except:
A)cyclic nucleotides.
B)nuclear receptors.
C)receptors that interact with a G protein.
D)receptors with multiple transmembrane segments.
E)self-inactivation.

Question

Quizplus · Accepted Answer

While some hormone and sensory systems do involve nuclear receptors (such as steroid hormone receptors), this question specifically refers to systems that involve trimeric G proteins. G protein-coupled receptors with multiple transmembrane segments interact with G proteins to activate downstream signaling pathways that often involve the generation of cyclic nucleotides such as cAMP. These systems often have self-inactivation mechanisms to prevent constant activation of the pathway. However, nuclear receptors are not typically involved in these types of systems.

Most Transduction Systems for Hormones and Sensory Stimuli That Involve