Related to Fig. 3C. Nonpolarized, Lat B-treated WT cells expressing PHcrac-GFP (green) were stimulated with 10 nM, 100 nM, 1 μM, or 10 μM nonhydrolyzable cAMP (Sp-adenosine 3′,5′-cyclic monophosphorothioate triethylammonium salt hydrate, Sp-cAMPS) (red), from Left to Right, respectively.