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. 2009 Jun 2;101(1):160–165. doi: 10.1038/sj.bjc.6605106

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Copyright © 2009 Cancer Research UK

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Principle of the oestrogen receptor bioactivity assay enabling investigation of receptor-mediated transcriptional activation of the green fluorescent protein optimised for expression in yeast (yEGFP3) under the control of oestrogen-responsive elements (EREs). X: oestrogen receptor-α (ER-α) or oestrogen receptor-β (ER-β), respectively; ERE 3 × : three-fold repeat of 5′-GGGTCACAGTGACCGCTAG-3′.