Biophyics - A cold break for photoreceptors

被引:8
作者
Essen, LO [1 ]
Oesterhelt, D [1 ]
机构
[1] Max Planck Inst Biochem, D-82152 Martinsried, Germany
关键词
D O I
10.1038/32294
中图分类号
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号
07 ; 0710 ; 09 ;
摘要
From bacteria to humans, light is perceived through photoreceptors, each of which is associated with a single light-sensitive molecule known as a chromophore. Although the chromophore can perceive light in a matter of femtoseconds, the ensuing response involves thermally driven movement of the surrounding protein, and is up to 108 times slower. The relationship between these two parts of the photocycle is now much clearer thanks to a study of one photoreceptor protein — photoactive yellow protein — at an amazing resolution of 0.85 Å.
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页码:131 / +
页数:2
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