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Green Fluorescent Protein-based Expression Screening of Membrane Proteins in Escherichia coli
Published on: January 6, 2015
Quantitation of green fluorescent protein using a gel-based imaging method
Few Ne Chew1, Wen Siang Tan, Tau Chuan Ling
1Department of Chemical and Environmental Engineering, Faculty of Engineering, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia.
Analytical Biochemistry
|October 28, 2008
Summary
A new gel-based imaging method accurately quantifies green fluorescent protein (GFP) without expensive equipment. This cost-effective technique offers precise and reproducible results for biological research applications.
Area of Science:
- Biochemistry
- Molecular Biology
- Protein Quantification
Background:
- Green fluorescent protein (GFP) is a widely used reporter in biological research.
- Quantifying GFP typically requires expensive spectrofluorometers.
- There is a need for more accessible GFP quantification methods.
Purpose of the Study:
- To develop a cost-effective gel-based imaging system for quantifying GFP.
- To evaluate the performance of the new method compared to traditional techniques.
Main Methods:
- A gel documentation imaging system was utilized with native polyacrylamide gels.
- The assay was validated for precision, linearity, reproducibility, and sensitivity.
- Performance was assessed in the presence of Escherichia coli cells.
- Results were compared against the spectrofluorometric method.
Main Results:
- The developed gel-based imaging technique accurately quantifies GFP.
- The method demonstrated acceptable precision, linearity, reproducibility, and sensitivity.
- The new assay provides a viable alternative to spectrofluorometry.
Conclusions:
- A novel, accessible gel-based imaging method for GFP quantification has been established.
- This technique offers accurate and reproducible results, reducing reliance on expensive equipment.
- The method is suitable for various biological research settings, particularly where resources are limited.
