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[Nuclear receptor-mediated signaling pathway].

S Kato1

  • 1Institute of Molecular and Cellular Biosciences, University of Tokyo, Japan.

Nihon Yakurigaku Zasshi. Folia Pharmacologica Japonica
|October 14, 2000
PubMed
Summary

Nuclear receptors are crucial gene regulators for hormones and vitamins. They control gene expression via ligand binding, influencing diverse biological processes and involving various protein complexes.

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Area of Science:

  • Molecular Biology
  • Genetics
  • Endocrinology

Context:

  • Nuclear receptors are ligand-inducible transcription factors.
  • They regulate gene expression in response to hormones, vitamins, and other fat-soluble ligands.
  • These receptors are critical for numerous biological events.

Purpose:

  • To discuss the mechanism of nuclear receptor-mediated gene transcription.
  • To highlight the role of nuclear cofactors in ligand-induced transactivation.
  • To review recently identified transcriptional co-activators and co-repressors.

Summary:

  • Nuclear receptors, a gene superfamily, bind ligands to control target gene expression.
  • Transcription involves cooperation with RNA polymerase II and auxiliary factors (TFIIA-H).
  • Nuclear cofactors interacting with AF-1 and AF-2 domains are essential for transactivation, with coactivator and corepressor complexes playing key roles.

Impact:

  • Provides insight into the fundamental mechanisms of gene regulation.
  • Identifies key players in hormone and vitamin signaling pathways.
  • Establishes the importance of nuclear cofactors in transcriptional control.

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