Cells were washed and lysed with buffer containing 50 mM Tris-HCl (pH 7.6), 150 mM NaCl, 0.1% SDS, 1% NP-40, and protease/phosphatase inhibitors. Protein concentration was determined by Bradford Pierce BCA protein assay (Thermo Fisher Scientific) according to the manufacturer’s instructions. The supernatants were boiled for 10 minutes and separated by SDS-PAGE. Polyacrylamide gels were cast with GERBU acrylamide M-Bis 30% solution; depending on size, proteins were spread on running gel from 10% to 12%.
Primary antibodies included WASp (Santa Cruz Biotechnology Inc., B-9),
phospho–NF-κB p65 (Cell Signaling Technology, 93H1),
total NF-κB p65 (Cell Signaling Technology, C22B4),
p-TBK1 (Cell Signaling Technology, 52C2),
total TBK1 (Cell Signaling Technology, D52C2),
STING (Cell Signaling Technology, D2P2F).
Secondary antibodies included
anti-rabbit HRP and
anti-mouse HRP (Jackson ImmunoResearch Laboratories Inc.).
Piperno G.M., Naseem A., Silvestrelli G., Amadio R., Caronni N., Cervantes-Luevano K.E., Liv N., Klumperman J., Colliva A., Ali H., Graziano F., Benaroch P., Haecker H., Hanna R.N, & Benvenuti F. (2020). Wiskott-Aldrich syndrome protein restricts cGAS/STING activation by dsDNA immune complexes. JCI Insight, 5(17), e132857.