FIG. 7.
EnhI predominates HBV gene expression; analysis by HBV-based reporter plasmids. (A) The structure of the constructed HBV-based reporter plasmids is shown. Also indicated are the predicted modes of activity of the different Gal4-chimera activators and the resultant transcripts and proteins. (B) Chang cells were transfected with the plasmids indicated in panel A, and level of Luciferase activity was measured. The reporter plasmids were cotransfected with the indicated plasmids and were treated with ligands (1 μM 9-cis-retinoic acid and 50 μM Wy-14643).