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Updated: May 17, 2026
12:12
Analysis of Termination of Transcription Using BrUTP-strand-specific Transcription Run-on (TRO) Approach
Published on: March 12, 2017
RNA polymerase I termination: Where is the end?
Attila Németh1, Jorge Perez-Fernandez, Philipp Merkl
1Universität Regensburg, Biochemie-Zentrum Regensburg (BZR), Lehrstuhl Biochemie III, 93053 Regensburg, Germany. attila.nemeth@vkl.uni-regensburg.de
Biochimica Et Biophysica Acta
|October 25, 2012
Summary
RNA polymerase I (Pol I) termination, initially thought simple, is complex in vivo. It links to RNA processing and transcription re-initiation, impacting cellular functions.
Area of Science:
- Molecular Biology
- Gene Expression
- Biochemistry
Background:
- Ribosomal RNA (rRNA) synthesis is crucial for protein production.
- RNA polymerase I (Pol I) transcribes rRNA precursors.
- Pol I termination involves dissociation of a ternary complex.
Purpose of the Study:
- To summarize and discuss the current understanding of Pol I termination.
- To explore the in vivo mechanisms of Pol I termination.
- To investigate the links between Pol I termination and other cellular processes.
Main Methods:
- Review of in vitro and in vivo experimental findings.
- Analysis of existing literature on Pol I transcription.
- Comparative discussion of Pol I termination in yeast and mammals.
Main Results:
- In vivo studies reveal Pol I termination is more complex than previously thought.
- Pol I termination is interconnected with co-transcriptional processing.
- Pol I termination may influence transcription re-initiation and downstream events.
Conclusions:
- Pol I termination is a dynamic process with implications beyond simple transcript release.
- Understanding Pol I termination is key to comprehending gene regulation.
- The mechanism of Pol I termination is conserved yet complex across species.
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