14-3-3τ enhances
the transcriptional activity of MEF2D. U937 cells were transfected
with pMEF2Fluc (1 µg), pCMVβgal
(0.5 µg) and plasmids expressing MEF2D
(1 µg), Sp1 (1 µg),
14-3-3τ (2.5 µg)
and 14-3-3τR56,60A (14-3-3m) (2.5 µg). Where indicated, transfected cells
were treated with TSA for 12 h. The cells were lysed 48 h later
and the lysates were analyzed by luciferase and β-galactosidase
assay. All luciferase values were normalized to the β-galactosidase values.