Fig. 4.
Targeting of TRAF2, TRAF5, or NIK expression with siRNA reduces CD40-mediated activation of the noncanonical NF-κB pathway. Subconfluent 293T cells were transfected in a two-step procedure with the indicated siRNA constructs and with CD40 or the indicated CD40 mutants. Nuclear extracts were prepared and analyzed as described in Fig. 3.