Effect of HUWE1 on MYC and MIZ1 complexes Immunoblot documenting levels of MYC and MIZ1 upon HUWE1 overexpression. Effect of HUWE1 on MYC and MIZ1 complexes.

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Effect of HUWE1 on MYC and MIZ1 complexes Immunoblot documenting levels of MYC and MIZ1 upon HUWE1 overexpression. Effect of HUWE1 on MYC and MIZ1 complexes Immunoblot documenting levels of MYC and MIZ1 upon HUWE1 overexpression. HeLa cells were transfected with plasmids expressing MYC, MIZ1, and HUWE1 (wt or catalytically inactive CS mutant). Relative protein levels of MIZ1 and MYC are shown below the immunoblot (n = 3). Interaction of MYC and MIZ1 upon ectopic expression of HUWE1. HeLa cells were transfected with the indicated expression vectors. Cell lysates were immunoprecipitated with MYC antibody or IgG as control, and immunoblots of the eluates were probed with indicated antibodies. As input control, 5% of the lysate was loaded. For each immunoprecipitate, the relative amount of MYC that is not bound to MIZ1 is shown below the blot (n = 2). Steady‐state protein levels of lysine‐free (MYC‐K) MYC and MIZ1 upon HUWE1 overexpression. The experiment was performed as described in (A). Immunoblots documenting steady‐state protein levels of MYC and MIZ1 upon HUWE1 depletion in Ls174T cells. Steady‐state protein levels of MYC and MIZ1 upon HUWE1 inhibition. Ls174T cells were treated with the indicated concentrations of HUWE1 inhibitors or DMSO as control. After 24 h, cells were lysed and immunoblots of the lysates probed with indicated antibodies. Heat map of all human transcription start sites (TSS) (±5 kb) documenting increased MIZ1 binding upon treatment with BI8622 (20 μM) in Ls174T cells. Genes were ranked according to MYC occupancy in DMSO control situation. Tag density distribution of MYC and MIZ1 around human TSS before and after treatment with BI8622. Cells were treated as described in (A). Tags were counted in 50 bp windows, and tags of the respective IgG control were subtracted. Boxplot illustrating recruitment (as log2FC) of MYC and MIZ1 after BI8622 treatment at MIZ1‐bound promoters (−1 kb to +0.5 kb) containing a consensus E‐box (CACGTG; n = 1711). Cells were treated as described in (A). For analysis, tags were counted in a region ±100 bp around the summit of the MIZ1 peak and P‐values were calculated using a two‐tailed, one‐sample t‐test with μ = 0. Stefanie Peter et al. EMBO Mol Med. 2014;6:1525-1541 © as stated in the article, figure or figure legend