Estrogen Receptor-Beta (Ab-105) (ESR2) Antibody – Rabbit

This gene encodes a member of the family of estrogen receptors and superfamily of nuclear receptor transcription factors. The gene product contains an N-terminal DNA binding domain and C-terminal ligand binding domain and is localized to the nucleus, cytoplasm, and mitochondria. Upon binding to 17beta-estradiol or related ligands, the encoded protein forms homo- or hetero-dimers that interact with specific DNA sequences to activate transcription. Some isoforms dominantly inhibit the activity of other estrogen receptor family members. Several alternatively spliced transcript variants of this gene have been described, but the full-length nature of some of these variants has not been fully characterized. [provided by RefSeq, Jul 2008]

ER-beta: a nuclear hormone receptor and transcription factor. Binds and activated by estrogen. Regulates gene expression and affects cellular proliferation and differentiation in target tissues. Binds estrogens with an affinity similar to that of ER-alpha, and activates expression of reporter genes containing estrogen response elements (ERE) in an estrogen-dependent manner. Eight alternatively-spliced isoforms have been described. Isoform beta-cx lacks ligand binding ability and has no or only very low ERE binding activity resulting in the loss of ligand-dependent transactivation ability.

Protein type: DNA-binding; Nuclear receptor

Chromosomal Location of Human Ortholog: 14q23.2

Cellular Component: nucleoplasm; mitochondrion; extracellular region; nucleus

Molecular Function: ligand-dependent nuclear receptor activity; receptor antagonist activity; protein binding; estrogen receptor activity; enzyme binding; DNA binding; zinc ion binding; transcription coactivator activity; estrogen response element binding; steroid hormone receptor activity; transcription factor activity; steroid binding

Biological Process: transcription initiation from RNA polymerase II promoter; estrogen receptor signaling pathway; induction of apoptosis by hormones; neuron migration; vagina development; negative regulation of transcription from RNA polymerase II promoter; uterus development; signal transduction; cell-cell signaling; ovarian follicle development; regulation of transcription, DNA-dependent; steroid hormone mediated signaling; positive regulation of transcription factor activity; gene expression; brain development; negative regulation of cell growth; negative regulation of epithelial cell proliferation