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Related Experiment Videos

Activation and repression in the nervous system

R H Goodman1, G Mandel

  • 1Vollum Institute, Oregon Health Sciences University, Portland 97201, USA. goodmanr@ohsu.edu

Current Opinion in Neurobiology
|August 4, 1998
PubMed
Summary
This summary is machine-generated.

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New findings clarify gene regulation. Transcription factors that don't bind DNA directly, co-activators and co-repressors, are key players in cell signaling and gene expression control.

Area of Science:

  • Molecular Biology
  • Genetics
  • Cell Signaling

Background:

  • Transcriptional activation and repression mechanisms are increasingly understood.
  • Transcription factors play a crucial role in regulating gene expression.
  • Cell signaling pathways are intricately linked to gene regulation.

Purpose of the Study:

  • To elucidate the role of co-activators and co-repressors in transcriptional regulation.
  • To explain how non-DNA-binding transcription factors mediate cell signaling.
  • To present a model for gene expression regulation involving histone modifications.

Main Methods:

  • Review of recent evidence on transcription factor function.
  • Analysis of co-activator and co-repressor interactions.

Related Experiment Videos

  • Integration of cell signaling pathways with epigenetic modifications.

    • Main Results:

    • Transcription factors not directly binding DNA (co-activators/co-repressors) mediate numerous cell signaling events.
    • Co-activators associate with histone acetylases for gene activation.
    • Co-repressors associate with histone deacetylases for gene repression.

    Conclusions:

    • Co-activators and co-repressors provide a mechanistic link between cell signaling and gene expression.
    • Histone acetylase and deacetylase associations offer a model for regulated gene expression.
    • Understanding these mechanisms is vital for comprehending cellular function and disease.