RIP140 functionally cooperates with CBP. (A,B) Transient transfection assay of RAW264.7 cells cotransfected with a luciferase reporter containing −1080 bp of the TNFα 5′-flanking region and expression vectors for RIP140, RelA, and p300 (A) or RIP140, RelA, and CBP (B) as indicated. (C) Transient transfection assays of RAW264.7 cells cotransfected with a luciferase reporter containing −1080 bp of the TNFα promoter and expression vectors for RelA and CBP along with RIP140-specific or control shRNA vectors as indicated. Data are means plus or minus SEM (n = 9). *P < .05.