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Liposoma singole misurazioni per lo studio degli enzimi di membrana Proton-pompaggio usando microscopia fluorescente ed elettrochimica
JoVE Journal
Biochemistry
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JoVE Journal Biochemistry
Single Liposome Measurements for the Study of Proton-Pumping Membrane Enzymes Using Electrochemistry and Fluorescent Microscopy
DOI:

12:15 min

February 21, 2019

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Chapters

  • 00:04Title
  • 00:28Preparation of a Lipid/UQ-10/FDLL Mix
  • 01:26Reconstitution of Cytochrome bo3
  • 05:06Fabrication of Semi-Transparent Gold Electrodes and Modification of the Gold Surface with Self-Assembled Monolayer (SAM)
  • 06:07Electrochemical Testing of Proteoliposomes Activity
  • 07:46Detection of Enzymatic Proton Pumping by Fluorescence Microscopy
  • 09:44Results: Liposome Identification and pH Change
  • 11:35Conclusion

Summary

Automatic Translation

Qui, presentiamo un protocollo per studiare il meccanismo molecolare della traslocazione di protoni attraverso le membrane del lipido di liposomi singoli, utilizzando citocromo bo3 come esempio. Combinando elettrochimica e microscopia a fluorescenza, le variazioni del pH in lumen del singole vescicole, contenenti singole o multiple enzima, possono essere rilevati e analizzati singolarmente.

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