Antibodies against Flag (sc-807), IkBa (sc-371), IKKa (sc-7218), HA (sc-7392), His (sc-803), BCL10 (sc-5611), Myc (sc-40), IRF3 (sc-9028), NEMO (sc-8330), b-actin (sc-8432), and a-tubulin (sc8035) were purchased from Santa Cruz Biotechnology.