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Related Experiment Video

Updated: Jul 5, 2026

High-throughput Purification of Affinity-tagged Recombinant Proteins
07:44

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Published on: August 26, 2012

The RNA polymerase II machinery: structure illuminates function.

Nancy A Woychik1, Michael Hampsey

  • 1Department of Molecular Genetics and Microbiology, Robert Wood Johnson Medical School, Piscataway, NJ 08854, USA.

Cell
|March 23, 2002
PubMed
Summary

Eukaryotic transcription relies on RNA polymerase II, initiation factors, and Mediator complexes. Structural insights, particularly for yeast RNA polymerase II, illuminate transcription mechanisms.

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Area of Science:

  • Molecular Biology
  • Structural Biology
  • Biochemistry

Background:

  • Eukaryotic transcription is a fundamental biological process.
  • Key players include RNA polymerase II, initiation factors, and the Mediator complex.
  • Understanding transcription mechanisms is crucial for cell function.

Purpose of the Study:

  • To elucidate the mechanisms of eukaryotic transcription.
  • To provide structural insights into transcription factors and complexes.
  • To focus on the atomic resolution structure of yeast RNA polymerase II.

Main Methods:

  • Three-dimensional structure determination of transcription components.
  • High-resolution structural analysis.
  • Comparative structural studies of yeast RNA polymerase II.

Main Results:

  • Structural data for multiple transcription factors and complexes have been obtained.
  • Detailed three-dimensional structures provide insights into molecular interactions.
  • Atomic resolution structure of yeast RNA polymerase II has been determined.

Conclusions:

  • Structural biology provides critical insights into eukaryotic transcription.
  • The Mediator complex plays a key role in transmitting regulatory signals.
  • Yeast RNA polymerase II structure offers a detailed model for transcription initiation.