Figure 3. Sequential mutation of the mouse IDE core promoter.
The mouse IDE core promoter contains three CGGCG repeats and a NRF-1 binding motif. The core promoter region with sequential mutations (M1 to M11) was cloned into the pGL3-basic vector. Luciferase activity of the reporter plasmids in NIH-3T3 and HeLa cells is represented as a percentage of the wild-type (WT) reporter plasmid.