线粒体呼吸链膜蛋白复合体的结构

被引:135
作者
孙飞 [1 ]
周强军 [1 ]
孙吉 [1 ]
翟宇佳 [1 ]
饶子和 [2 ]
机构
[1] 中国科学院生物物理研究所生物大分子国家重点实验室
[2] 清华大学“清华-南开-生物物理所”结构生物联合实验室
关键词
线粒体呼吸链膜蛋白复合体; 结构生物学; NADH泛醌氧化还原酶; 琥珀酸泛醌氧化还原酶; 细胞色素c还原酶; 细胞色素c氧化酶;
D O I
暂无
中图分类号
Q26 [细胞生物化学];
学科分类号
071013 [干细胞生物学];
摘要
线粒体作为真核细胞的重要"能量工厂",是细胞进行呼吸作用的场所,呼吸作用包括柠檬酸循环和氧化磷酸化两个过程,其中氧化磷酸化过程的电子传递链(又称线粒体呼吸链)位于线粒体内膜上,由四个相对分子质量很大的跨膜蛋白复合体(Ⅰ、Ⅱ、Ⅲ、和Ⅳ)、介于Ⅰ/Ⅱ与Ⅲ之间的泛醌以及介于Ⅲ与Ⅳ之间的细胞色素c共同组成。线粒体呼吸链的功能是进行生物氧化,并与称之为复合物V的ATP合成酶(磷酸化过程)相偶联,共同完成氧化磷酸化过程,并生产能量分子ATP。线粒体呼吸链的结构生物学研究对于彻底了解电子传递和能量转化的机理是至关重要的,本文分别论述线粒体呼吸链复合体Ⅰ、Ⅱ、Ⅲ和Ⅳ的结构,并跟踪线粒体呼吸链超复合体的结构研究进展。
引用
收藏
页码:566 / 578
页数:13
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