Fig. 5From: Overexpression of bHLH domain of HIF-1 failed to inhibit the HIF-1 transcriptional activity in hypoxiaThe effect of transfection on the viability of HEK293T, 48 h after transfection by Propidium Iodide staining. a Un-transfected HEK293T cells, and b Transfected with ibHLH pIRES2-EGFPBack to article page