Fig. 5. ERK2 directly binds to CK2α through its docking groove.
Immunoprecipitation and immunoblotting analyses were performed with the indicated antibodies.
(A) Immobilized purified His-CK2α was mixed with purified ERK2 followed by washing three times with cell lysis buffer and immunoblotting analysis. Control, nickel-agarose beads.
(B) 293T cells were transfected with a control vector or vectors expressing MEK1 Q56P and FLAG-ERK2.
(C) A vector expressing MEK1 Q56P were co-transfected with FLAG-WT ERK2, FLAG-ERK2 T/E (T157/158E), FLAG-ERK2 D/N (D316/319N), or FLAG-ERK2 T/E-D/N mutant into 293T cells.