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Related Experiment Videos

Functional dissection of a human Dr1-DRAP1 repressor complex

K Yeung1, S Kim, D Reinberg

  • 1Howard Hughes Medical Institute, Department of Biochemistry, Robert Wood Johnson Medical School, University of Medicine and Dentistry of New Jersey, Piscataway 08854-5635, USA.

Molecular and Cellular Biology
|January 1, 1997
PubMed
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The Dr1-DRAP1 repressor complex

Area of Science:

  • Molecular Biology
  • Gene Regulation
  • Protein Function

Background:

  • The Dr1-DRAP1 complex is a transcriptional repressor.
  • Understanding its functional domains is crucial for gene regulation studies.

Purpose of the Study:

  • To functionally dissect the Dr1-DRAP1 transcriptional repressor complex.
  • To identify and characterize the domains responsible for repression.

Main Methods:

  • Functional dissection of the Dr1-DRAP1 complex.
  • Analysis of protein-protein interactions.
  • Assays for transcriptional repression.

Main Results:

  • Dr1 possesses two key domains for repression: a tethering domain and a repression domain.

Related Experiment Videos

  • The tethering domain interacts with TATA-binding protein for promoter targeting.
  • The repression domain, glutamine-alanine rich, directly interacts with TATA-binding protein.

    • Conclusions:

    • The tethering domain is essential for functional interaction with the corepressor DRAP1.
    • The repression domain can independently repress transcription when targeted to promoters.