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Related Experiment Video

Updated: May 5, 2026

Vertical T-maze Choice Assay for Arthropod Response to Odorants
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OMA-gosh, where's that TAF?

T Keith Blackwell1, Amy K Walker

  • 1Section on Developmental and Stem Cell Biology, Joslin Diabetes Center, Department of Pathology, Harvard Medical School, Harvard Stem Cell Institute, Boston, MA 02215, USA. keith.blackwell@joslin.harvard.edu

Cell
|October 16, 2008
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Summary
This summary is machine-generated.

Early embryo transcription is silenced by sequestering the general transcription factor TAF-4. This mechanism regulates the critical transition from maternal to zygotic gene expression during worm development.

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Area of Science:

  • Developmental Biology
  • Molecular Biology
  • Genetics

Background:

  • Transcription silencing in early embryos is poorly understood.
  • The transition from maternal to zygotic gene expression is crucial for development.

Purpose of the Study:

  • To elucidate the mechanisms of transcriptional repression in early embryonic development.
  • To identify key factors involved in regulating gene expression transitions.

Main Methods:

  • Investigated the role of general transcription factors in early embryogenesis.
  • Analyzed the sequestration of TAF-4 during embryonic development.

Main Results:

  • Transcriptional repression is mediated by the sequestration of the general transcription factor TAF-4.
  • Specific regulatory mechanisms control the maternal-to-zygotic gene expression transition.

Conclusions:

  • TAF-4 sequestration is a key mechanism for silencing transcription in early worm embryos.
  • Understanding these mechanisms provides insight into developmental gene regulation.