GTPase Activity is Involved in the Regulation of Signal Transduction

Question

GTPase activity is involved in the regulation of signal transduction because it
A)increases the available concentration of phosphate.
B)decreases the amount of G protein in the membrane.
C)hydrolyzes GTP binding to G protein.
D)converts cGMP to GTP.
E)phosphorylates protein kinases.

Accepted Answer

GTPase activity involves the hydrolysis of GTP binding to G proteins, which is crucial for termination and regulation of signal transduction pathways. This activity ensures that the G protein switches back to an inactive state after the signaling process is completed, allowing for subsequent responses to occur.