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Updated: Apr 21, 2026

Reverse Yeast Two-hybrid System to Identify Mammalian Nuclear Receptor Residues that Interact with Ligands and/or Antagonists
Published on: November 15, 2013
Nuclear hormone receptors PXR and CAR and metabolic diseases
Abstract:
Nuclear receptors (NRs) belong to a superfamily of evolutionarily related DNA-binding transcription factors that can be activated by steroid and thyroid hormones, and other lipid metabolites. Ligand activated NRs can regulate target gene expression by binding to DNA response elements present in the target gene promoters. Through this regulation, NRs are broadly implicated in physiology and metabolism. In this chapter, we will focus on the xenobiotic receptors and their recently discovered functions in metabolic diseases.
Insights
Nuclear receptors (NRs) are proteins that regulate genes. This chapter explores xenobiotic receptors and their role in metabolic diseases, highlighting their newly discovered functions.
Area of Science:
- Molecular Biology
- Endocrinology
- Metabolism
Background:
- Nuclear receptors (NRs) are a superfamily of DNA-binding transcription factors.
- They are activated by hormones and lipid metabolites, regulating gene expression.
- NRs play crucial roles in various physiological and metabolic processes.
Purpose of the Study:
- To focus on xenobiotic receptors within the NR superfamily.
- To discuss the recently discovered functions of these receptors in metabolic diseases.
Main Methods:
- This chapter focuses on a review of existing literature and research on nuclear receptors.
- Analysis of gene regulation mechanisms controlled by ligand-activated NRs.
- Examination of the role of xenobiotic receptors in metabolic disease pathways.
Main Results:
- Nuclear receptors bind to DNA response elements to modulate target gene expression.
- Xenobiotic receptors, a subset of NRs, have emerging roles in metabolic regulation.
- These receptors are increasingly implicated in the pathophysiology of metabolic disorders.
Conclusions:
- Nuclear receptors are key regulators of gene expression with broad physiological impact.
- Xenobiotic receptors present novel therapeutic targets for metabolic diseases.
- Further research into NR functions can illuminate metabolic disease mechanisms.
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