(E) Western blotting showed the expression of p65, p-p65, IκBα and p-IκBα in NF-κB pathway in RBM7-depleted or control MDA-MB-231 and BT-549 breast cancer cells (see also Figure 6—source data 1, Figure 6—source data 2). This evidence concerns the gene NFKB1 and breast cancer.