Estrogen response element (ERE)

Estrogen Response Elements (EREs) are specific DNA sequences, typically organized as inverted repeats (5-GGTCAnnnTGACC-3), that serve as the primary docking sites for Estrogen Receptors (ERα and ERβ) [PMID: 11554793]. The steps within these sequences refer to the dinucleotide base-pair steps that determine the local DNA geometry, flexibility, and overall shape, which are critical for the precise recognition and binding affinity of the receptor dimers [PMID: 12140254]. While EREs are regulatory DNA segments rather than proteins, they are the functional hubs of the estrogen signaling pathway, mediating the expression of genes involved in cell growth, differentiation, and metabolism [PMID: 15103175]. In diseases such as breast cancer, the interaction between ERs and EREs is often hyperactivated, making the modulation of this interaction a central goal of endocrine therapy [PubMed]. Current pharmacological approaches involve using Selective Estrogen Receptor Modulators (SERMs) or degraders (SERDs) to inhibit the receptor's ability to activate transcription at these ERE sites [National Cancer Institute]. Understanding the dinucleotide steps within these elements helps in predicting how variations in DNA sequence can lead to differential gene expression and drug response.

Other names

Estrogen-responsive elementER binding siteEstrogen receptor response elementERE sequence

Drugs typically target the Estrogen Receptor (ER) to modulate its ability to bind to EREs or to recruit transcriptional coregulators to these sites, thereby inhibiting or activating the expression of downstream genes.