Figure 4From: Binding of estrogen receptor with estrogen conjugated to bovine serum albumin (BSA)Membrane localization of ERα. HeLa cells stably transfected with ERα(a) and native HeLa cells (b) were incubated with fluorescein labeled membrane impermeable BSA conjugated to estradiol (E2-BSA-FITC) and visualized under phase contrast bright field and with UV light with an excitation filter for FITC.Back to article page