Journal: Cellular physiology and biochemistry : international journal of experimental cellular physiology, biochemistry, and pharmacology
Article Title: CFTR controls the activity of NF-kB by enhancing the degradation of tradd
doi: 10.1159/000453162
Figure Lengend Snippet: 1A) CFBE cells were transfected with GFP-wt CFTR, GFP-ΔF508 CFTR, GFP-TNR CFTR, or GFP-G551D CFTR. Forty-eight hours after transfection, cells were lysed, and co-immunoprecipitation was performed using either anti-TRADD or mouse IgG (immunoglobulin G) antibodies. CFTR expression in the total cell lysates is shown, as well as CFTR, which is co-precipitated with TRADD. The results show that TRADD binds to wt and G551D but not to ΔF508 and TNR CFTR, both of which remain in the ER, suggesting that TRADD binds only to CFTR that is processed to the plasma membrane. (1B-C) CFBE cells were transfected with GFP-wt CFTR (1B) or GFP-ΔF508 CFTR (1C). Antibodies recognizing GFP (green) and TRADD (red) were used in immunofluorescence-based detection. wt CFTR and TRADD were colocalized in the perinuclear region of the cells. Importantly, TRADD did not colocalize with ΔF508 CFTR, consistent with the lack of binding of this mutant. # - denotes that CFBE cells were transfected CFTR.
Article Snippet: Cell lysates were collected and mixed with rabbit polyclonal anti-TRADD antibody (10ug, Santa Cruz Biotechnology), and incubated overnight at 4°C.
Techniques: Transfection, Immunoprecipitation, Expressing, Clinical Proteomics, Membrane, Immunofluorescence, Binding Assay, Mutagenesis