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Dissipative Microgravimetry to Study the Binding Dynamics of the Phospholipid Binding Protein Annexin A2 to Solid-supported Lipid Bilayers Using a Quartz Resonator
JoVE Journal
Biochemistry
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JoVE Journal Biochemistry
Dissipative Microgravimetry to Study the Binding Dynamics of the Phospholipid Binding Protein Annexin A2 to Solid-supported Lipid Bilayers Using a Quartz Resonator

Dissipative Microgravimetry to Study the Binding Dynamics of the Phospholipid Binding Protein Annexin A2 to Solid-supported Lipid Bilayers Using a Quartz Resonator

DOI:
10.3791/58224-v

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07:11 min

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November 01, 2018

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, , , , , ,
1Institute of Medical Biochemistry, Center for Molecular Biology of Inflammation,University of Münster, 2Institute of Biochemistry,University of Münster, 3Cluster of Excellence ‘Cells in Motion’,University of Münster

Chapters

  • 00:04Title
  • 00:42Lipid Vesicle Preparation and Handling the Quartz Sensors
  • 03:03Microbalance Operation and Cleaning
  • 05:17Results: Changes in Frequency and Dissipation during Bilayer formation and the Reversible Ca2+-Dependent Interaction of Annexin A2 with the Lipid Bilayer
  • 06:36Conclusion

Summary

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Here, we present an experimental protocol that can be employed to determine the binding affinities and mode of interaction of label-free phospholipid-binding protein annexin A2 with immobilized solid-supported bilayers (SLB) by simultaneously measuring the mass uptake and the viscoelastic properties of the protein annexin A2.

Tags

Dissipative MicrogravimetryPhospholipid Binding ProteinAnnexin A2Solid-supported Lipid BilayersQuartz ResonatorCalcium-dependent BindingNegatively Charged PhospholipidsLabel-freeSensitiveQuantitativeReal-time AnalysisLipid SolutionsMultilamellar VesiclesSmall Unilamellar VesiclesSDS CleaningPlasma Cleaning

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