Production of new amilorides as potent inhibitors of mitochondrial respiratory complex I
作者:Masatoshi Murai、Sayako Habu、Sonomi Murakami、Takeshi Ito、Hideto Miyoshi
DOI:10.1080/09168451.2015.1010479
日期:2015.7.3
Amilorides, well-known inhibitors of Na(+)/H(+) antiporters, have also shown to inhibit bacterial and mitochondrial NADH-quinone oxidoreductase (complex I). Since the membrane subunits ND2, ND4, and ND5 of bovine mitochondrial complex I are homologous to Na(+)/H(+) antiporters, amilorides have been thought to bind to any or all of the antiporter-like subunits; however, there is no direct experimental
Amilorides,Na(+)/ H(+)反转运蛋白的著名抑制剂,也显示出抑制细菌和线粒体NADH-醌氧化还原酶(复合体I)的作用。由于牛线粒体复合体I的膜亚基ND2,ND4和ND5与Na(+)/ H(+)反转运蛋白同源,因此阿米洛利被认为与任何或所有反转运蛋白样亚基结合;但是,没有直接的实验证据支持这一观点。光亲和标记法是鉴定牛复合物I中阿米洛利结合位点的有力技术。商业上可获得的阿米洛利,例如5-(N-乙基-N-异丙基)阿米洛利,由于其结合力低,因此不适合用作合成光反应性阿米洛利的设计模板。对牛复合体I的亲和力。因此,我们试图修改市售阿米洛利的结构,以获得更有效的衍生物。我们成功地生产了两个光反应性阿米洛利(PRA1和PRA2),在分子的相对末端具有一个对光不稳定的叠氮基团。