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Updated: Jun 16, 2026
11:02
Methods to Discover Alternative Promoter Usage and Transcriptional Regulation of Murine Bcrp1
Published on: May 27, 2016
A new reporter vector system based on flow-cytometry to detect promoter activity
Sundo Jung1, Ji-Hye Choi, Changwan Hong
1School of Life Sciences and Biotechnology, Korea University, Seoul 136-701, Korea.
Immune Network
|February 17, 2010
Summary
Researchers developed a novel dual reporter vector for analyzing promoter activity. This system uses EGFP as a reporter and DsRed as a transfection control, enabling sensitive and efficient detection in transfected cells.
Area of Science:
- Molecular Biology
- Biotechnology
Background:
- Analyzing promoter activity is crucial for understanding gene regulation.
- Existing reporter systems may lack efficiency or require complex manipulation.
Purpose of the Study:
- To develop a novel dual reporter vector system for enhanced promoter activity analysis.
- To enable simultaneous detection of reporter and control proteins for improved sensitivity.
Main Methods:
- Constructed a single vector co-expressing Enhanced Green Fluorescent Protein (EGFP) and DsRed.
- Utilized flow cytometry for simultaneous detection of EGFP and DsRed expression.
- Employed DsRed expression for gating transfected cells and excluding non-transfected ones.
Main Results:
- Successfully developed a dual reporter vector system.
- Demonstrated simultaneous detection of EGFP (reporter) and DsRed (control) via flow cytometry.
- Achieved a significant increase in promoter activity detection sensitivity by gating on DsRed-positive cells.
Conclusions:
- The novel dual reporter vector system provides a simple and efficient method for promoter activity analysis.
- Simultaneous detection and gating strategies enhance the sensitivity and reliability of promoter studies.
- This system offers a valuable tool for molecular biology research.
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