A cyanobacterial phytochrome two-component light sensory system
A cyanobacterial phytochrome two-component light sensory system
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DOI：
10.1126/science.277.5331.1505
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发表时间：
1997-09-05
期刊：
影响因子：
56.9
通讯作者：
Lagarias, JC
中科院分区：
文献类型：
--
作者：
Yeh, KC;Wu, SH;Lagarias, JC
胆蛋白光敏色素通过一种未知的机制调节植物对环境光环境的生长发育反应。生化分析表明，光敏色素是一种古老的分子，它是从蓝藻中更紧凑的光传感器进化而来的。蓝藻光敏色素Cph1是一种光调控的组氨酸激酶，它介导由相邻基因编码的小反应调节因子Rcp1(蓝藻光敏色素反应调节因子)的红色远红可逆磷酸化，从而在光敏色素光信号转导的初始步骤中涉及蛋白质的磷酸化-去磷酸化。
The biliprotein phytochrome regulates plant growth and developmental responses to the ambient light environment through an unknown mechanism. Biochemical analyses demonstrate that phytochrome is an ancient molecule that evolved from a more compact light sensor in cyanobacteria. The cyanobacterial phytochrome Cph1 is a light-regulated histidine kinase that mediates red, far-red reversible phosphorylation of a small response regulator, Rcp1 (response regulator for cyanobacterial phytochrome), encoded by the adjacent gene, thus implicating protein phosphorylation-dephosphorylation in the initial step of light signal transduction by phytochrome.