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Detection of lectin-glycan interaction using high resolution surface plasmon resonance
Kyle J Foley1, Erica S Forzani, Lokesh Joshi
1Department of Electrical Engineering, Arizona State University, Tempe, AZ 85282-5706, USA.
The Analyst
|May 22, 2008
Summary
We developed a new method for detecting disaccharides, which are simple sugars, binding to lectins. This technique allows for real-time, label-free measurements at nanomolar concentrations.
Area of Science:
- Biochemistry
- Analytical Chemistry
- Carbohydrate Chemistry
Background:
- Lectins are proteins that bind carbohydrates.
- Disaccharides are composed of two sugar units.
- Accurate detection of carbohydrate-protein interactions is crucial in biology and medicine.
Purpose of the Study:
- To develop a real-time, label-free method for detecting disaccharide binding to lectins.
- To quantify disaccharide concentrations at nanomolar levels.
Main Methods:
- Utilized differential surface plasmon resonance (SPR) spectroscopy.
- Employed a label-free detection strategy.
- Measured direct binding of disaccharides to immobilized lectins.
Main Results:
- Successfully detected direct disaccharide binding to lectins in real-time.
- Achieved sensitive detection of nanomolar concentrations of disaccharides.
- Demonstrated the label-free nature of the assay.
Conclusions:
- Differential SPR is a powerful tool for studying lectin-carbohydrate interactions.
- The developed method offers a sensitive and efficient approach for disaccharide detection.
- This technique has potential applications in diagnostics and drug discovery.
