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The ins and outs of transcriptional control: nucleocytoplasmic shuttling in development and disease

James M Smith1, Peter A Koopman

  • 1Institute for Molecular Bioscience, The University of Queensland, Brisbane, Queensland 4072, Australia.

Trends in Genetics : TIG
|December 31, 2003
PubMed

Insights

Defects in SOX transcription factors

Area of Science:

  • Developmental biology
  • Molecular biology
  • Genetics

Background:

  • SOX transcription factors are crucial for development.
  • Their function relies on proper localization within the cell.
  • Previous research focused on biochemical properties, overlooking transport.

Purpose of the Study:

  • To investigate the role of nuclear transport in SOX factor function.
  • To explore how nuclear import and export defects cause developmental issues.
  • To understand the link between SOX transport and inherited developmental disorders.

Main Methods:

  • Examining SOX transcription factor nuclear import.
  • Experimentally interfering with SOX nuclear export signals.
  • Analyzing resulting developmental defects in model systems.

Main Results:

  • Impaired nuclear import of SOX factors can cause organogenesis defects.
  • Disrupting SOX nuclear export signals also leads to developmental abnormalities.
  • These findings highlight the importance of transport regulation.

Conclusions:

  • Nuclear import/export balance is a key regulator of SOX transcription factor activity during development.
  • Defects in these transport processes may contribute to a wider range of inherited developmental disorders.
  • This research broadens the understanding of developmental disorder etiology.

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