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Proton Transfer e conformazione proteica Dynamics in proteine ​​fotosensibili da Time-risolto Step-scan trasformata di Fourier Infrared Spectroscopy
JoVE 신문
공학
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JoVE 신문 공학
Proton Transfer and Protein Conformation Dynamics in Photosensitive Proteins by Time-resolved Step-scan Fourier-transform Infrared Spectroscopy
DOI:

10:03 min

June 27, 2014

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Chapters

  • 00:05Title
  • 02:13Preparation of Attenuated Total Reflection Experiments on Bacteriorhodopsin
  • 03:48Performing Transmission Experiments on Detergent-solubilized Channelrhodopsin-2
  • 05:02Adjustment and Synchronization of the Exciting Laser
  • 05:55Time-resolved Step-scan Preparations and Settings
  • 07:48Results: Time-resolved Step-scan FTIR Experiments to Determine Protonation and Protein Conformational Changes
  • 09:24Conclusion

Summary

자동 번역

Key steps of protein function, in particular backbone conformational changes and proton transfer reactions, often take place in the microsecond to millisecond time scale. These dynamical processes can be studied by time-resolved step-scan Fourier-transform infrared spectroscopy, in particular for proteins whose function is triggered by light.

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