Esr1 — Estrogen Receptor Alpha is an important component in the neurobiology of neurodegenerative diseases. This page provides detailed information about its structure, function, and role in disease processes.
Official Symbol: ESR1 [@srvri2020]
Official Full Name: Estrogen Receptor 1 [@gillman2019]
Gene Type: Protein Coding [@tripanichkot2013]
Location: Chromosome 6q25.1 [@dhandapani2005]
NCBI Gene ID: 2099 [@cade2021]
Ensembl ID: ENSG00000091831 [@liu2022]
UniProt ID: P03372 [@azcoitia2023]
Overview
The Estrogen Receptor Alpha (ERα), encoded by the ESR1 gene, is a ligand-activated transcription factor that mediates the effects of estrogen hormones in the brain. ERα is widely expressed in brain regions involved in cognition, mood, and neuroprotection, including the [hippocampus](/brain-regions/hippocampus), [cortex](/brain-regions/cortex), hypothalamus, and amygdala. This receptor plays critical roles in neurodevelopment, synaptic plasticity, and protection against neurodegenerative processes.
Function
Estrogen Receptor Alpha functions through multiple mechanisms:
Genomic Signaling
Direct Transcription Factor: Upon estrogen binding, ERα dimerizes and translocates to the nucleus, where it binds to estrogen response elements (EREs) in target gene promoters
The study of Esr1 — Estrogen Receptor Alpha has evolved significantly over the past decades. Research in this area has revealed important insights into the underlying mechanisms of neurodegeneration and continues to drive therapeutic development.
Historical context and key discoveries in this field have shaped our current understanding and will continue to guide future research directions.
[Brinton RD et al., Estrogen regulation of glucose metabolism and mitochondrial function (2015) (2015)](https://pubmed.ncbi.nlm.nih.gov/26554466/)
[Sárvári M et al., Estrogen receptor alpha in neuronal protection and regeneration (2020) (2020)](https://pubmed.ncbi.nlm.nih.gov/32847234/)
[Gillman J et al., Estrogen and Alzheimer's disease: The critical window hypothesis (2019) (2019)](https://pubmed.ncbi.nlm.nih.gov/31141647/)
[Tripanichkot W et al., Estrogen receptor expression in Parkinson's disease (2013) (2013)](https://pubmed.ncbi.nlm.nih.gov/24140648/)
[Dhandapani KM et al., Estrogen neuroprotection: Mechanisms and therapeutic implications (2005) (2005)](https://pubmed.ncbi.nlm.nih.gov/15860642/)
[Cade WT et al., Estrogen receptor alpha and neuroinflammation (2021) (2021)](https://pubmed.ncbi.nlm.nih.gov/34568291/)
[Liu SB et al., Estrogen receptor alpha and synaptic plasticity in the hippocampus (2022) (2022)](https://pubmed.ncbi.nlm.nih.gov/35698712/)
[Azcoitia I et al., Brain estrogen synthesis and signaling in neurodegeneration (2023) (2023)](https://pubmed.ncbi.nlm.nih.gov/37253418/)
Pathway Diagram
The following diagram shows the key molecular relationships involving ESR1 — Estrogen Receptor Alpha discovered through SciDEX knowledge graph analysis: