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Related Experiment Videos

Transcription factor complexes.

Stephen K Burley1, Katsuhiko Kamada

  • 1Laboratories of Molecular Biophysics and Howard Hughes Medical Institute, The Rockefeller University, 1230 York Avenue, New York, New York 10021, USA. sburley@stromix.com

Current Opinion in Structural Biology
|April 18, 2002
PubMed
Summary
This summary is machine-generated.

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Recent structural studies reveal how transcription factors form complexes with DNA and RNA polymerase. Key findings include structures of complexes like negative cofactor 2, BmrR, SarA, FadR, and AML1-CBFbeta, advancing our understanding of gene regulation.

Area of Science:

  • Molecular Biology
  • Structural Biology
  • Genetics

Background:

  • Transcription factors regulate gene expression by binding to DNA and interacting with RNA polymerase.
  • Understanding the structural basis of these interactions is crucial for deciphering gene regulation mechanisms.
  • Multiprotein complexes play a key role in controlling transcription initiation.

Purpose of the Study:

  • To present recent advancements in the structural determination of eukaryotic and bacterial transcription factor complexes.
  • To elucidate the molecular architecture of transcription factors bound to DNA and their associated proteins.
  • To provide insights into the mechanisms of transcription regulation.

Main Methods:

  • X-ray crystallography
  • Nuclear Magnetic Resonance (NMR) spectroscopy

Related Experiment Videos

  • Cryo-electron microscopy (Cryo-EM)

    • Main Results:

    • Determined the structure of negative cofactor 2 bound to a TATA-box-binding protein-DNA complex.
    • Elucidated the structure of a BmrR dimer complexed with DNA and tetra-phenylphosphonium.
    • Resolved structures of DNA-bound SarA and FadR complexes.
    • Characterized leukemia-associated AML1-CBFbeta-DNA ternary complexes.
    • Determined the structure of a SAP1-SRF-DNA ternary complex.

    Conclusions:

    • Structural insights into diverse transcription factor complexes have been obtained.
    • These structures provide a molecular basis for understanding transcription regulation by multiprotein complexes.
    • Continued structural studies are essential for a comprehensive understanding of RNA polymerase function and gene control.