Action of subunit by G-protein is: (A) Binding of agonist, (B) Conversion of GDP to GTP, (C) Breaking of GTP to GDP, (D) Internalization of receptor
Answer is C. Alpha subunit G protein contains GTPase activity and thus dissociates GTP to form GDP.thus re-uniting alpha subunit with beta and gamma submit Ref-KDT 7/e p46