NFKB2 and infection: After the normalization of the infections using enhanced green fluorescence protein (EGFP), which was simultaneously expressed from a bicistronic transcript encoding the tax1 genes, the amounts of NF-κB2/p100 and its processed product p52 in the infected cell lysates were determined by Western blot analysis using an anti-p100/p52 antibody (Fig. 1B).