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Updated: May 14, 2026
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Single-molecule Imaging of Gene Regulation In vivo Using Cotranslational Activation by Cleavage (CoTrAC)
Published on: March 15, 2013
Single-molecule methods for studying gene regulation in vivo
1Department of Biophysics and Biophysical Chemistry, Johns Hopkins University School of Medicine, Baltimore, MD 21211, USA.
Pflugers Archiv : European Journal of Physiology
|February 23, 2013
Summary
New fluorescence tools allow real-time, single-molecule visualization of gene regulation within living cells. This review covers methods and insights into intracellular gene expression dynamics.
Area of Science:
- Molecular Biology
- Genetics
- Biophysics
Background:
- Gene regulation is crucial for cellular function and development.
- Understanding gene regulation at the single-molecule level provides fundamental insights.
- Previous methods lacked the resolution to observe these processes in vivo.
Purpose of the Study:
- To review advancements in in vivo single-molecule fluorescence detection for gene regulation studies.
- To discuss the molecular tools enabling visualization of DNA, mRNA, and proteins.
- To highlight new understandings of gene regulation gained from these techniques.
Main Methods:
- Sensitive fluorescence detection techniques.
- In vivo imaging of single molecules (DNA, mRNA, proteins).
- Development and application of novel molecular tools for observation.
Main Results:
- Enabled visualization of gene regulation at the single-molecule level in native intracellular environments.
- Provided an overview of the current, rapidly evolving toolkit for in vivo observation.
- Facilitated new discoveries and deeper understanding of gene regulatory mechanisms.
Conclusions:
- Single-molecule fluorescence detection is revolutionizing the study of gene regulation.
- Advanced molecular tools offer unprecedented views into intracellular gene expression.
- These techniques are key to unlocking complex regulatory processes in vivo.
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