C-terminal HIF-1α transactivation after GSNO-treatment. HEK293 cells,
2 × 105, were cotransfected with 0.5 μg
pGal-HIF-1α727–826 and 1 μg pGal-Luc plasmids and stimulated
for 16 h with 1 mM GSNO, exposed to 1% hypoxia, or left untreated (control).
After cell lysis, luciferase activity was measured and normalized compared
with controls. Each experiment was performed at least three times and
representative data are shown. Data are the mean ± SD (n = 3).