Fig. 4. N-CoR is translocated to the cytoplasm in the presence of p65
TA. (A)
Immunofluorescence staining of 293T cells transfected with N-CoR in the
presence (lower panels) or absence (upper panels) of p65
TA. N-CoR-flag
was detected by incubating with
-flag antibody and a FITC-conjugated
secondary antibody (left panels),
-p65 staining is represented in the
middle panels corresponding to Cy3 signal and nuclei were visualized by DAPI
staining (right panels). Ectopic expression of p65
TA does not affect
N-CoR protein levels. (B) Immunoblotting analysis of whole cell extracts
isolated from 239T cells transfected with N1-IC and N-CoR-flag (lane 1) and
N1-IC, N-CoR-flag and p65
TA (lane 2). Cell lysates were separated on a
6% acrylamide gel, and immunoblots were performed with the following
antibodies:
-flag (N-CoR),
-N1(N1-IC) and
-p65. Protein
loading for each lane was normalized according to ß-galactosidase
expression and confirmed with
-N1 immunoblot. The western blot for p65
shows endogenous p65 (upper band) and transfected p65
TA (lower
band).