Question

Is the statement below true? please explain why.

Protein kinases are important components of signal transduction pathways because they can directly detect extracellular signals

Answer 1

I think this statement is false because protein kinase are important component of signal transduction pathway but they doesn't Directly detect extracellular signals . For example , extracellular signals bind on G-PROTEIN and it further activate adenylyl cyclase which produces ATP from cAMP . Then this cAMP activate protein kinase.