Tripping the light fantastic: blue-light photoreceptors as examples of environmentally modulated protein-protein interactions.

Tripping the light fantastic: blue-light photoreceptors as examples of environmentally modulated protein-protein interactions.
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DOI:
10.1021/bi101665s
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发表时间:
2011-01-11
期刊:
影响因子:
2.9
通讯作者:
Gardner KH
Gardner KH
中科院分区:
生物学3区
文献类型:
--
作者:
Zoltowski BD;Gardner KH

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蓝光光感受器在检测环境中光的质量和数量方面发挥着关键作用,控制着广泛的生物反应。已经使用生物物理学和生物化学详细表征了蓝光光感受器的几个家族,从光子吸收开始,通过干预信号转导,调节生物活性。在这里,我们回顾了光氧电压(LOV),隐花色素(CRY)和蓝光传感器使用FAD(BLUF)家族,三组不同的蛋白质,提供明显不同的光化学激活和信号转导模式,但在大量的生物反应中发挥类似的作用。我们涵盖了光激活和传播的构象反应,调节蛋白质:蛋白质相互作用参与生物信号的机制。这些过程在天然蛋白质中的发现和表征现在使得能够设计可光调节的工程蛋白质,促进了用于生物化学和细胞生物学研究的新型试剂的产生。
Blue light photoreceptors play a pivotal role in detecting the quality and quantity of light in the environment, controlling a wide range of biological responses. Several families of blue-light photoreceptors have been characterized in detail using biophysics and biochemistry, beginning with photon absorption, through intervening signal transduction, to regulation of biological activities. Here we review the Light Oxygen Voltage (LOV), Cryptochrome (CRY) and sensors of Blue Light Using FAD (BLUF) families, three different groups of proteins that offer distinctly different modes of photochemical activation and signal transduction, yet play similar roles in a vast array of biological responses. We cover mechanisms of light activation and propagation of conformational responses that modulate protein:protein interactions involved in biological signaling. Discovery and characterization of these processes in natural proteins are now enabling the design of photoregulatable engineered proteins, facilitating the generation of novel reagents for biochemical and cell biological research.
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