Figure 1From: Endocrinology and hormone therapy in breast cancer: New insight into estrogen receptor-α function and its implication for endocrine therapy resistance in breast cancerNuclear ER-α functions. (a) Enhanced transcription of genes with an estrogen response element (ERE) in the promoter. (b) Enhanced transcription of genes by modifying activity of transcription complexes at other promoter sites (activator protein [AP]-1). AIB, amplified in breast cancer; At, acetyltransferase; E, estradiol; ER, estrogen receptor-α.Back to article page