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Updated: Jul 11, 2026

Detecting the Ligand-binding Domain Dimerization Activity of Estrogen Receptor Alpha Using the Mammalian Two-Hybrid Assay
Published on: December 19, 2018
Structural dynamics of the human androgen receptor: implications for prostate cancer and neurodegenerative disease
1School of Medical Sciences, Institute of Medical Sciences, University of Aberdeen, Foresterhill, Aberdeen AB25 2ZD, Scotland, UK.
Abstract:
The AR (androgen receptor) is a ligand-activated transcription factor that mediates the action of the steroids testosterone and dihydrotestosterone. Alterations in the AR gene result in a number of clinical disorders, including: androgen-insensitivity, which leads to disruption of male development; prostate cancer; and a neuromuscular degenerative condition termed spinal bulbar muscular atrophy or Kennedy's disease. The AR gene is X-linked and the protein is coded for by eight exons, giving rise to a C-terminal LBD (ligand-binding domain; exons 4-8), linked by a hinge region (exon 4) to a Zn-finger DBD (DNA-binding domain; exons 2 and 3) and a large structurally distinct NTD (N-terminal domain; exon 1). Identification and characterization of mutations found in prostate cancer and Kennedy's disease patients have revealed the importance of structural dynamics in the mechanisms of action of receptors. Recent results from our laboratory studying genetic changes in the LBD and the structurally flexible NTD will be discussed.
Insights
The androgen receptor (AR) is crucial for male development and its gene alterations cause disorders like prostate cancer. Studying AR gene mutations, particularly in the ligand-binding and N-terminal domains, is key to understanding these diseases.
Area of Science:
- Molecular Biology
- Genetics
- Endocrinology
Background:
- The androgen receptor (AR) is a transcription factor mediating steroid hormone action.
- AR gene alterations are linked to androgen insensitivity, prostate cancer, and Kennedy's disease.
Purpose of the Study:
- To investigate the structural dynamics and genetic changes in the AR.
- To understand the mechanisms of AR action in disease pathogenesis.
Main Methods:
- Analysis of AR gene mutations in patients with prostate cancer and Kennedy's disease.
- Characterization of genetic alterations in the AR's ligand-binding domain (LBD) and N-terminal domain (NTD).
Main Results:
- Mutations in the AR gene, especially in the LBD and NTD, are critical for receptor function.
- Structural dynamics play a significant role in AR-mediated signaling and disease.
Conclusions:
- Understanding AR structural dynamics and mutations is vital for developing treatments for AR-related disorders.
- Further research into AR genetic changes will illuminate disease mechanisms.
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