Western blot analysis of extracts from Raw 264.7 cells, untreated (-) or transfected with poly(deoxyadenylic-deoxythymidylic) acid (dA:dT, 5 μg/ml, overnight; +), using Phospho-IRF-7 (Ser437/438) Antibody (Mouse Specific) (upper) and β-Actin (D6A8) Rabbit mAb #8457 (lower).