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Related Experiment Videos

Structural studies on nuclear receptors.

J P Renaud1, D Moras

  • 1Laboratoire de Biologie et Génomique Structurales, CNRS UPR 9004, Institut de Génétique et Biologie Moléculaire et Cellulaire, CNRS/INSERM/ULP, B.P. 163, Illkirch, France.

Cellular and Molecular Life Sciences : CMLS
|December 29, 2000
PubMed
Summary
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Nuclear receptors are proteins that control gene activity. Their structures reveal how they bind DNA and respond to drugs, offering insights for therapeutic development.

Area of Science:

  • Molecular Biology
  • Structural Biology
  • Pharmacology

Background:

  • Nuclear receptors are DNA-binding proteins regulating gene transcription in response to ligands.
  • They control vital physiological processes like development, homeostasis, and cellular life.
  • Their ligand-dependent activity makes them key targets for drug design.

Purpose of the Study:

  • To elucidate the structural basis of nuclear receptor function.
  • To understand how nuclear receptors recognize DNA response elements.
  • To provide molecular insights into ligand-dependent transcriptional regulation by agonists and antagonists.

Main Methods:

  • Crystallographic studies of isolated nuclear receptor domains.
  • Analysis of DNA-binding domain dimers complexed with oligonucleotides.

Related Experiment Videos

  • Structural determination of ligand-binding domains in various ligation states.

    • Main Results:

    • Insights into the DNA recognition and binding mechanisms of nuclear receptors.
    • Revealed the structure of DNA-binding domain dimers bound to response elements.
    • Provided structural evidence for ligand-dependent conformational changes and transcriptional switching.

    Conclusions:

    • The intrinsic flexibility of nuclear receptors influences their action.
    • Structural data explains the molecular basis for agonist and antagonist activity.
    • Understanding nuclear receptor structure is crucial for developing targeted therapeutics.