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Nuclear-receptor ligands and ligand-binding domains
R V Weatherman1, R J Fletterick, T S Scanlan
1Department of Pharmaceutical Chemistry, University of California, San Francisco 94143-0446, USA.
Annual Review of Biochemistry
|June 29, 2000
Summary
Nuclear receptor ligand binding domain (LBD) structures reveal insights into receptor function. This review compares LBD structures, ligand interactions, and coactivator roles in nuclear receptor signaling pathways.
Area of Science:
- Biochemistry
- Molecular Biology
- Structural Biology
Background:
- Nuclear receptors are crucial regulators of gene expression.
- Understanding their mechanism of action is vital for drug development.
- Ligand binding domains (LBDs) are key to receptor function.
Purpose of the Study:
- To review and compare diverse nuclear receptor LBD structures.
- To elucidate the role of ligand structure in receptor activity.
- To explore LBD interactions with coactivator proteins and their functional implications.
Main Methods:
- Comparative analysis of published LBD structural data.
- Review of studies on ligand-receptor interactions.
- Examination of structural data on LBD-coactivator complexes.
Main Results:
- Distinct LBD structures correlate with specific nuclear receptor functions.
- Ligand binding significantly influences receptor conformation and activity.
- Interactions between LBDs and coactivators are critical for signal transduction.
Conclusions:
- Structural insights into LBDs provide a mechanistic understanding of nuclear receptors.
- Ligand design targeting LBDs can modulate receptor activity for therapeutic benefit.
- Understanding coactivator interactions is essential for developing novel nuclear receptor modulators.