The effect of coexpression of dominant negative GABP cDNA on the luciferase activity.

The reporter plasmids were transfected to MST cells with the expression plasmid containing the dominant negative GABP cDNA (5 or 10 μg). The transfected DNA was always kept in equal amount using the backbone expression vector in each transfection assay. The data represent the mean ± SE of 3 experiments. In some cases, the SE was too small to be shown by bars. P < .01 by t test when compared with the luciferase activity obtained by the cotransfection of the reporter plasmid with the expression vector alone.