[list_product_images]Western blot of HeLa cell lysate showing specific labeling of the ~95 kDa IR protein phosphorylated at Thr1160 in the first lane (-). Phosphospecificity is shown in the second lane (+) where immunolabeling is completely eliminated by blot treatment with lambda phosphatase (gamma-Ptase, 1200 units for 30 min).[/list_product_images]