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Gramicidin-based Fluorescence Assay; for Determining Small Molecules Potential for Modifying Lipid Bilayer Properties
JoVE Journal
Biologia
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JoVE Journal Biologia
Gramicidin-based Fluorescence Assay; for Determining Small Molecules Potential for Modifying Lipid Bilayer Properties
DOI:

10:52 min

October 13, 2010

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Capítulos

  • 00:00Título
  • 00:50Introduction
  • 01:22Generation of 8-aminonaphthalene-1,3,6-trisulfonate (ANTS) Filled Liposomes
  • 04:12Fluorescent Solution Preparation
  • 05:02Fluorescence Instrument Setup
  • 06:21Performing a Gramicidin-based Fluorescence Assay
  • 07:34Data Analysis
  • 09:16Representative Results
  • 10:25Conclusion

Summary

Tadução automática

We introduce a fast fluorescence-based assay that monitors the rate of fluorescence quenching as a measure of gramicidin channel activity. The gramicidin channels are used as molecular force transducers to monitor changes in lipid bilayer properties as sensed by bilayer spanning proteins.

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