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Related Experiment Videos

HATs off to PIC assembly.

B Franklin Pugh1

  • 1Center for Gene Regulation, USA.

Molecular Cell
|September 16, 2006
PubMed
Summary
This summary is machine-generated.

The HAT p300 undergoes autoacetylation, triggering its release from promoters. This catalytic switch is linked to the TFIID transcription factor

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Area of Science:

  • Molecular biology
  • Gene regulation
  • Epigenetics

Background:

  • Transcription preinitiation complex (PIC) assembly involves regulated steps.
  • Histone acetyltransferase (HAT) p300 plays a role in transcription regulation.

Discussion:

  • Black et al. (2006) describe a catalytic switch mechanism.
  • Autoacetylation of p300 is a key event in this switch.

Key Insights:

  • p300 autoacetylation causes its dissociation from promoter DNA.
  • This dissociation is coupled to the association of transcription factor TFIID.

Outlook:

  • Understanding this mechanism provides insights into PIC assembly dynamics.
  • Further research can explore the role of p300 autoacetylation in various cellular processes.