Which is NOT typically a step in the cAMP second-messenger system?
A. A first messenger binds to a transmembrane receptor.
B. Active cAMP-dependent protein kinase phosphorylates cell proteins.
C. Adenylyl cyclase converts ATP into cAMP.
D. There is dissociation of G-protein subunits.
E. An activated G-protein subunit phosphorylates cAMP-dependent protein kinase.
Answer: E
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______________ is the inability to smell.
Fill in the blank(s) with the appropriate word(s).Fill in the blank(s) with the appropriate word(s).
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