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Real Time Measurements of Membrane Protein:Receptor Interactions Using Surface Plasmon Resonance SPR
Published on: November 29, 2014
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Studying protein-protein interactions using surface plasmon resonance
1Department of Pathology, University of Michigan Medical School, 4510E MSRB I, 1150 West Medical Center Drive, Ann Arbor, MI, 48109, USA, zanetan@med.umich.edu.
Methods in Molecular Biology (Clifton, N.J.)
|April 11, 2015
Summary
Surface plasmon resonance (SPR) is a label-free technology for studying protein-protein interactions. This guide details SPR experimental design, assay setup, and data analysis for kinetic and binding parameter determination.
Area of Science:
- Biochemistry
- Molecular Biology
- Biophysics
Background:
- Protein-protein interactions (PPIs) are crucial for cellular processes like metabolism, cell cycle regulation, and signal transduction.
- Understanding PPI networks and their kinetic properties is essential for comprehending cellular function.
- Surface plasmon resonance (SPR) is a key technology for quantitative analysis of PPIs.
Purpose of the Study:
- To provide a comprehensive guide on experimental design and instrumentation for kinetic studies of protein-protein interactions using SPR.
- To detail the principles, assay setup, data collection, and analysis for SPR-based kinetic experiments.
- To offer practical tips for successful SPR studies, including ligand immobilization and reporting results.
Main Methods:
- Detailed description of SPR instrumentation and experimental design for kinetic analysis.
- Protocol for ligand immobilization using amino coupling chemistry.
- Methodology for performing kinetic studies, data collection, and analysis.
Main Results:
- SPR enables label-free, real-time investigation of protein-protein interactions.
- Quantitative determination of equilibrium and kinetic parameters of PPIs is achievable with SPR.
- The chapter provides a generic protocol applicable to various SPR-based studies.
Conclusions:
- SPR is a powerful technique for detailed, quantitative characterization of protein-protein interactions.
- Proper experimental design and data analysis are critical for reliable SPR results.
- This guide equips researchers with the knowledge to effectively utilize SPR for PPI studies.
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