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Related Experiment Videos

Eukaryotic coactivators associated with the TATA box binding protein.

G Gill1, R Tjian

  • 1Howard Hughes Medical Institute, Department of Molecular and Cell Biology, University of California, Berkeley 94720.

Current Opinion in Genetics & Development
|April 1, 1992
PubMed
Summary

Researchers discovered coactivators, a new class of molecules essential for regulating RNA polymerase II transcription. These coactivators work with the TATA box binding protein to enhance gene expression.

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Area of Science:

  • Molecular Biology
  • Gene Regulation
  • Biochemistry

Background:

  • Regulated transcription by RNA polymerase II is a fundamental process in gene expression.
  • The basal transcription machinery, including the TATA box binding protein, is crucial for initiating transcription.
  • Understanding the factors that modulate transcription is key to deciphering cellular function.

Purpose of the Study:

  • To identify and characterize novel molecular players involved in the regulation of RNA polymerase II transcription.
  • To elucidate the role of newly discovered coactivators in conjunction with known transcription factors.

Main Methods:

  • Biochemical assays to study protein-protein interactions.
  • In vitro transcription assays to measure transcriptional activity.

Related Experiment Videos

  • Analysis of coactivator association with the TATA box binding protein complex.

    • Main Results:

    • A new class of molecules, termed coactivators, has been identified.
    • These coactivators are closely associated with the TATA box binding protein.
    • Coactivators are necessary, alongside promoter-specific activators and basal transcription factors, for achieving stimulated transcription levels.

    Conclusions:

    • Coactivators represent a critical component of the transcriptional regulatory network.
    • Their association with the TATA box binding protein highlights a key mechanism for enhancing gene transcription.
    • Further investigation into coactivators will provide deeper insights into the precise control of gene expression.