Idenfity the false statement about G-protein coupled receptors: (A) G-Protein coupled receptors have 7 transmembrane segments and 3 subunits, (B) α subunit carries inherent GTPase activity, (C) α subunit seperates from β, γ subunit after binding to GDP, (D) α(s) stimulates adenylyl cyclase and ↑ cAMP
Answer is C. α - subunit gets seperated from β, γ subunits after binding to GTP, not GDP.