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Related Experiment Videos

Regulating inducible transcription through controlled localization.

Elizabeth C Ziegler1, Sankar Ghosh

  • 1Department of Molecular Biophysics and Biochemistry, Yale University School of Medicine, New Haven, CT 06520, USA.

Science'S STKE : Signal Transduction Knowledge Environment
|May 19, 2005
PubMed
Summary
This summary is machine-generated.

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Inactive transcription factors may constantly shuttle between the cytoplasm and nucleus. Their retention is achieved through complex mechanisms beyond simple nuclear localization signal masking, impacting signaling pathways.

Area of Science:

  • Molecular Biology
  • Cell Biology
  • Biochemistry

Background:

  • Transcription factor activity is regulated by subcellular localization.
  • Cytoplasmic retention was traditionally attributed to masking of nuclear localization signals (NLSs).

Purpose of the Study:

  • To review recent evidence challenging the simple model of transcription factor cytoplasmic retention.
  • To discuss complex mechanisms of inducible transcription factor localization.

Main Methods:

  • Literature review of recent scientific reports.
  • Analysis of signaling pathways and transcription factor regulation.

Main Results:

  • Evidence suggests inducible transcription factors shuttle between cytoplasm and nucleus.

Related Experiment Videos

  • Cytoplasmic retention involves NLS masking, cytoplasmic tethering, or proteasomal degradation.

    • Conclusions:

    • A more complex model of cytoplasmic retention is proposed for transcription factors.
    • This model may apply to a wider range of transcription factors and signaling pathways.