A. Diagrams of plasmids containing mutated shRNA control or β-catenin shRNA that were expressed in ESC and pregnant dams.
B. Western blot of protein from ESC transfected with shRNA constructs for 24 hours targeting β-catenin singly (lanes 2,3) or in combination (lane 4) versus mutated control shRNA constructs singly (lanes 5,6) or in combination (lane 7) demonstrating 40-64% knock-down. Top blot is β-catenin and bottom blot is a loading control blotted for β-actin. Lane 1 is protein from untransfected ESC.