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东亚飞蝗辅酶q-细胞色素c还原酶基因克隆和序列分析

DOI: 10.3724/SP.J.1145.2011.00078, PP. 78-81

Keywords: 东亚飞蝗,辅酶q-细胞色素c还原酶基因,race,序列分析

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Abstract:

辅酶q-细胞色素c还原酶是组成线粒体呼吸链的4种酶复合体之一,对线粒体呼吸链的电子传递起着重要作用.同时,辅酶q-细胞色素c还原酶还是杀真菌剂(fungicide)、抗原虫(antiprotozoan)、抗癌药物(anticancerdrugs)以及抗疟疾(antimalarial)药物――阿托喹酮(atovaquone)、氯胍(proguanil)、布帕伐醌(buparvaquone)的作用靶标,可将它作为昆虫的药靶,设计和开发新型的杀虫剂.采用race方法,克隆了东亚飞蝗[locustamigratoriamanilensis(meyen)]辅酶q-细胞色素c还原酶cdna全序列(genbank登录号:gu593056.1).获得的cdna全长939bp,其中可读框819bp,编码272个氨基酸,推测其相对分子质量为29.48ku,等电点为9.19.通过与其它10个物种的细胞色素c还原酶基因的氨基酸序列进行比对,发现东亚飞蝗与家蚕、赤拟谷盗、?腹果蝇、埃及伊蚊、致乏库蚊、小家鼠、人、丽蝇蛹集金小蜂、蜜蜂和豌豆蚜的辅酶q-细胞色素c还原酶氨基酸序列同源性分别为72%、72%、66%、63%、60%、59%、59%、58%、57%和56%.图3表1参10

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