Fig. 7. The Hook1 azh mutant is unable to interact with RIM-BP3.
(A) Schematic representation of the wild-type Hook1 and the
azh mutant Hook1 protein (Hook1azh) with their polypeptide
length indicated. (B) The expression constructs of Flag-RIM-BP3,
HA-Hook1 and HA-Hook1azh were co-transfected into HEK-293T cells
with various combinations indicated at the top. Whole-cell extracts were
immunoprecipitated with the anti-RIM-BP3 (C) or anti-HA antibody, and the
precipitated proteins were analyzed by western blotting using anti-HA or
anti-RIM-BP3 (C) antibody as indicated.