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. 2017 Jan 13;8(8):13792–13804. doi: 10.18632/oncotarget.14637

Figure 4. PKA expression levels affect EMSY phosphorylation in 293T cells.

Figure 4

(A) EMSY-overexpressed and/or PKA-depleted 293T cell lysates were immunoprecipitated with V5 antibody and blotted with PKA-phosphosubstrate (PKA-p-sub) antibody. The left side panels demonstrate EMSY overexpression and PKA knockdown by siRNA. The right panels show V5-immunoprecipitation (V5-IP) and detection of PKA-targeted EMSY phosphorylation using the PKA-p-sub antibody. Overexpressed EMSY is detected with the V5 antibody (V5EMSY). (B) EMSY and PKA co-expressed 293T cell lysates were immunoprecipitated with V5 antibody and blotted with PKA-p-sub. The left panels show EMSY and FLAG-tagged PKA overexpression. The right panels show V5-immunoprecipitation (V5-IP) and detection of PKA-targeted EMSY phosphorylation using the PKA-p-sub antibody. Overexpressed PKA is detected with FLAG (FLAGPKA) antibody. For (A) and (B) IgG heavy chain (V5IgG) ponceau staining and anti-β-Actin served as loading controls.