Here we describe a procedure allowing a detailed analysis of the phosphorylation-dependent activation of the IRF3 transcription factor. This is achieved through the combination of a high resolution SDS-PAGE and a native-PAGE coupled to immunoblots using multiple phosphospecific antibodies.
Robitaille, A. C., Mariani, M. K., Fortin, A., Grandvaux, N. A High Resolution Method to Monitor Phosphorylation-dependent Activation of IRF3. J. Vis. Exp. (107), e53723, doi:10.3791/53723 (2016).