<prompt> If there is a Gs alpha subunit gain-of-function mutation, this results in:Decreased cAMPDecreased 1P3Increased GTPase activityIncreased cAMP  <response>: Gs activates Ca channel opening Gs-increases cAMP by stimulating adenyl cyclase Giinhibitory- decreases cAMP by inhibiting adenyl cyclase Pg.no45 KD TRIPATHI SEVENTH EDITION 