A Protein Kinase Can Act as an Integrating Device in Signaling

Question

A protein kinase can act as an integrating device in signaling if it
A)phosphorylates more than one substrate.
B)catalyzes its own phosphorylation.
C)is activated by two or more proteins in different signaling pathways.
D)initiates a phosphorylation cascade involving two or more protein kinases.

Accepted Answer

A protein kinase acts as an integrating device when it is activated by two or more proteins from different signaling pathways, allowing it to integrate signals from multiple sources.