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Updated: Mar 26, 2026

Artificial RNA Polymerase II Elongation Complexes for Dissecting Co-transcriptional RNA Processing Events
Published on: May 13, 2019
Mediator Architecture and RNA Polymerase II Interaction
Clemens Plaschka1, Kayo Nozawa1, Patrick Cramer1
1Max Planck Institute for Biophysical Chemistry, Department of Molecular Biology, Am Fassberg 11, 37077, Göttingen, Germany.
Recent advances in structural biology reveal the architecture of the Mediator complex and its interaction with RNA polymerase II. Further research is needed to understand Mediator structure and function.
Area of Science:
- Molecular Biology
- Structural Biology
- Biochemistry
Background:
- The Mediator complex is a crucial transcriptional co-activator.
- Its precise role in regulating RNA polymerase II activity is under investigation.
Purpose of the Study:
- To summarize recent structural biology findings on the Mediator complex.
- To outline open questions regarding Mediator structure and mechanism.
Main Methods:
- Integrated structural biology techniques.
- Cryo-electron microscopy (Cryo-EM).
- X-ray crystallography.
Main Results:
- Elucidation of the overall architecture of the Mediator complex.
- Determination of Mediator's position relative to RNA polymerase II.
Conclusions:
- Significant progress has been made in understanding Mediator structure.
- Key questions remain regarding Mediator's dynamic mechanism and functional regulation.
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