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A Model for Light-Driven Proton Pump and Transfer in Bacteriorhodopsin |
| HUANG Yu-Hua1,4;ZHAO You-Yuan1;OU-YANG Xiao-Ping1;LI Fu-Ming1;DING Jian-Dong2;LI Qing-Guo3 |
| 1State Key Laboratory for Materials Modification by Laser Ion and Electron Beams, Department of Optical Science, Fudan University, Shanghai 200433
2Department of Macromolecular Science, Fudan University, Shanghai 200433
3Department of Biology and Biophysics, Fudan University, Shanghai 200433
4Key Laboratory of Optical and Magnetic Resonance Spectroscopy and Department of Physics, East China Normal University, Shanghai 200062 |
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| Cite this article: |
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HUANG Yu-Hua, ZHAO You-Yuan, OU-YANG Xiao-Ping et al 2003 Chin. Phys. Lett. 20 959-961 |
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Abstract A theoretical model was assumed to describe the kinetic processes of light-driven proton pump and motion. The calculation shows that the photovoltage signals are greatly affected by experimental conditions including pulse width of excitation and impedance of measurement system. At the same excitation, only a negative photovoltage signal can be observed with small impedance and both the negative and positive signals can be observed with large impedance. With the same impedance, shorter response time of the pulsed photoelectric signals is responsible for shorter pulsed excitation. All these phenomena are in good agreement with the experimental results.
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| Keywords:
87.15.La
86.25.Fr
87.15.Aa
84.60.Jt
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Published: 01 June 2003
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