Figure 3.
NFAT5 inhibits binding between β-catenin and p300/CBP. (a) HEK293 cells were transfected with HA-CBP, Myc-NFAT5, or both, and after 48 h, lysate was collected and incubated with the GST-tagged β-catenin protein. After several washings, bound proteins were eluted and an anti-HA western blot assay was performed. (b) HEK293 cells were transfected with Flag-β-catenin, Myc-NFAT5, or both, and after 48 h, lysate was collected and incubated with the GST-tagged CH3 domain of p300. After several washings, bound proteins were eluted and an anti-Flag western blot assay was performed. (c) HEK293 cells were transfected with HA-tagged CBP and Flag-tagged β-catenin, with or without Myc-NFAT5 as indicated. Anti-HA immunoprecipitation was performed on the cell lysate, and bound proteins were analyzed via anti-Flag western blot. Whole-cell lysate was analyzed as a control.