可溶性鸟苷酸环化酶介导NO信号转导的结构基础及其分子机制研究

被引:16
作者
潘洁 [1 ]
钟方芳 [1 ]
王红艳 [2 ]
黄仲贤 [1 ]
谭相石 [1 ,2 ]
机构
[1] 复旦大学化学系
[2] 复旦大学生物医学研究院
关键词
NO; NO信号转导; sGC;
D O I
暂无
中图分类号
R318.04 [生物信息、生物控制]; Q55 [酶];
学科分类号
070307 [化学生物学]; 100122 [医学生命组学与生物信息学];
摘要
可溶性鸟苷酸环化酶(sGC)是NO信号转导通路中的核心金属酶,是NO的敏感器和受体.sGC含有?和?两个亚基,每个亚基分别具有3个结构域,包括血红素结构域、中心结构域和催化结构域,两个亚基的血红素结构域共享有一个血红素,NO结合到sGC的血红素后,激活sGC,催化其底物GTP转化为二级信号分子cGMP,开启PKG信号通路,导致血管舒张.NO信号转导通路异常将导致多种疾病的发生,如多种心血管疾病、肺动脉高血压、心力衰竭及神经退行性疾病等.近20年来,关于sGC的结构、功能、激活机制及其在生理与病理中的作用有了很多进展.本文重点对sGC的结构、功能及其活化/失活机制研究进展进行综述.
引用
收藏
页码:572 / 585
页数:14
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