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题名: Rapid Thermal Tuning of Chromophore Structure in Membrane Protein
作者: Wang, Jianping1, 2;  El-Sayed, Mostafa A.3
刊名: JOURNAL OF PHYSICAL CHEMISTRY B
发表日期: 2009-04-02
DOI: 10.1021/jp901560m
卷: 113, 期:13, 页:4184-4186
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences
类目[WOS]: Chemistry, Physical
研究领域[WOS]: Chemistry
英文摘要: We show that the configuration and the optical property of the retinal chromophore in bacteriorhodopsin (bR) can be tuned dynamically from the all-trans configuration to the 13-cis by using a nanosecond laser-induced temperature-jump. The rapid bleach in the visible absorption optical density of retinal has an apparent formation time of ca. 170 ns, whereas the relaxation process finishes within tens of ms. The dynamical transition of retinal from the all-trans to 13-cis species is believed to occur as a result of rapid protein conformational change especially in the vicinity of retinal binding site. Our study reveals the intrinsic dynamical aspect of the retinal chromophore with respect to the protein structure.
关键词[WOS]: SCHIFF-BASE ;  RETINAL ISOMERIZATION ;  ANGSTROM RESOLUTION ;  PHASE-TRANSITIONS ;  PROTON-TRANSFER ;  QUANTUM YIELD ;  BACTERIORHODOPSIN ;  PHOTOISOMERIZATION ;  SPECTROSCOPY ;  PHOTOCYCLE
语种: 英语
WOS记录号: WOS:000264591800025
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/141488
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Chinese Acad Sci, Beijing Natl Lab Mol Sci, Beijing 100190, Peoples R China
2.Chinese Acad Sci, State Key Lab Mol React Dynam, Inst Chem, Beijing 100190, Peoples R China
3.Georgia Inst Technol, Laser Dynam Lab, Sch Chem & Biochem, Atlanta, GA 30332 USA

Recommended Citation:
Wang, Jianping,El-Sayed, Mostafa A.. Rapid Thermal Tuning of Chromophore Structure in Membrane Protein[J]. JOURNAL OF PHYSICAL CHEMISTRY B,2009,113(13):4184-4186.
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