Role of AMPKα2 in the phosphorylation of β3 integrin. (A) Effect of AMPK inhibition (compound C [Comp C], 10μM) on the thrombin-induced phosphorylation (p-Tyr747) of β3 integrin in washed human platelets. (B) Thrombin-induced phosphorylation of β3 integrin in platelets from AMPKα2+/+, α2−/−, α1+/+, and α1−/− mice. The bar graphs summarize data from 6 different experiments; *P < .05 and **P < .01 vs solvent (Sol)–treated platelets.