Effect of hGATA-1, hGATA-2, and hGATA-3 transcription factors on induction of the wild-type and the mutated GATA of the Epo promoter with luciferase reporter in Hep3B cells. (A) Experiment no. 1. (B) Experiment no. 2. The results of total relative light units per CAT units are shown. Numbers above the bars indicate the hypoxic induction.