Regulation of MEF2D-HDAC5 binding.
A, C2C12 cells co-transfected with expression plasmids for GFP- and FLAG-tagged MEF2D and GFP-tagged HDAC5 were cultured in GM or DM for 3 h before immunoprecipitation using FLAG antibodies and Western blotting using MEF2D and HDAC5 antibodies. p (one-way ANOVA) = 0.003. B, HEK293 cells were transfected with GFP- and FLAG-tagged MEF2D mutants and GFP-HDAC5 before immunoprecipitation using FLAG antibodies and Western blotting as in A. p (one-way ANOVA) < 0.0001. C, same as A except using C2C12 cells transfected with mAKAP or control siRNA. p (two-way ANOVA for both factors and interaction) < 0.04. D, same as A except using C2C12 cells co-expressing mCherry or CBD-mCherry. p (two-way ANOVA for growth media and interaction) < 0.04. n = 3 independent experiments for all panels. *, p ≤ 0.05; **, p ≤ 0.01; ***, p ≤ 0.001. Error bars, S.E.