Figure 2

Doxycycline-regulated luciferase activity in Hep3B/RevTet-Off clones. Hep3B/RevTet-Off clones were infected transiently using RevTRE-Luc retroviral particles. Cells were cultured in either the presence or absence of 1 μg/ml doxycycline. Clones were assayed by the luciferase assay system.