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Bio-ingénierie
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Reconstitution of Actin-Based Motility with Commercially Available Proteins
Journal JoVE
Bio-ingénierie
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Journal JoVE Bio-ingénierie
Reconstitution of Actin-Based Motility with Commercially Available Proteins

Reconstitution of Actin-Based Motility with Commercially Available Proteins

DOI:
10.3791/64261-v

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08:40 min

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October 28, 2022

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1Laboratoire de physique de l’Ecole Normale Supérieure, ENS, Université PSL, CNRS,Sorbonne Université, Université Paris Cité

Chapitres

  • 00:04Introduction
  • 01:05Preparation of Protein Solutions
  • 02:04Measurement of Protein Concentrations
  • 04:15Coating of Beads
  • 05:32Preparing the Motility Mix, Slides for Observation, and Microscopy Observation
  • 06:39Results: Measuring Protein Concentrations, Analyzing Comet Formation and Bead Velocity
  • 07:53Conclusion

Summary

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Traduction automatique

This protocol describes how to produce actin comets on the surfaces of beads using commercially available protein ingredients. Such systems mimic the protrusive structures found in cells, and can be used to examine physiological mechanisms of force production in a simplified way.

Tags

Keywords: ActinActin-based MotilityProtein ReconstitutionProtein PurificationBiochemical AnalysisBiophysical AnalysisLangmuir EquationProtein ResuspensionProtein ConcentrationBradford Assay

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