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An efficient method for quantitative determination of cellular ATP synthetic activity
1Biofrontier Laboratories Kyowa Hakko Kogyo Co. Ltd. 3-6-6 Asahimachi Machidashi, Tokyo 194-8533, Japan.
Journal of Biomolecular Screening
|February 24, 2006
Summary
Researchers developed a new method to measure cellular ATP synthesis using bioluminescence. This technique allows for quantitative assessment of energy production in permeable bacterial cells, aiding glycolytic ATP synthesis studies.
Area of Science:
- Biochemistry
- Cell Biology
- Metabolic Engineering
Background:
- Adenosine triphosphate (ATP) is crucial for biological energy transfer.
- Quantifying cellular ATP synthesis has been challenging.
- Existing methods lack efficiency and quantitative accuracy.
Purpose of the Study:
- To develop an efficient and quantitative method for measuring cellular ATP synthesis.
- To adapt the luciferin-luciferase assay for dynamic ATP production measurements.
- To establish a high-throughput assay for glycolytic ATP synthesis.
Main Methods:
- Utilized the luciferin-luciferase reaction for bioluminescence-based ATP quantification.
- Developed a method to render Escherichia coli cells permeable using osmotic shock and detergent treatment.
- Measured ATP synthesis in permeable cells utilizing glucose as a substrate.
Main Results:
- Bioluminescence intensity correlated proportionally with ATP concentration.
- Permeable cells synthesized and accumulated ATP from glucose without significant growth.
- Cellular ATP biosynthetic activity was determined from the slope of increasing bioluminescence.
Conclusions:
- The developed method provides an efficient way to quantitatively measure cellular ATP synthesis.
- The permeable cell assay is suitable for high-throughput screening of glycolytic ATP production.
- This approach offers a valuable tool for studying cellular energy metabolism.