Whole-cell Brij protein lysis and Western-blot analyses were performed as described [46 (link),54 (link)]. Antibodies used for the detection of the respective proteins and their dilutions were: FLAG (M2, SIGMA F-1804; mouse monoclonal; 1:500), pSTAT1 (sc-135648, Santa-Cruz Biotechnology; rabbit polyclonal; 1:1000), pSTAT2 (sc-21689-R, Santa-Cruz Biotechnology; rabbit polyclonal; 1:1000), STAT1 (C-terminus, S21120, BD Transduction Laboratories; mouse monoclonal; 1:1000), STAT2 (C-20, sc-476, Santa-Cruz Biotechnology; rabbit polyclonal; 1:1000), pSTAT5 (#9351, Cell Signaling Technology; rabbit polyclonal; 1:1000), STAT5A (L-20, sc-1081, Santa-Cruz Biotechnology; rabbit polyclonal; 1:1000), STAT5A+B (C-17, sc-835, Santa-Cruz Biotechnology; rabbit polyclonal; 1:1000), α-tubulin (DM1A, sc-32293, Santa-Cruz Biotechnology; mouse monoclonal; 1:200), Anti-Rabbit IgG-Peroxidase (SIGMA A-0545; 1:10,000), Anti-Mouse IgG-Peroxidase (SIGMA A-8924; 1:10,000). Apparent molecular weight of detected proteins was as predicted by the antibody manufacturers. Immunoblots shown are representative of at least two independent experiments. Uncropped original blots are available in the S1 File.
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