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线粒体DNA
释义
线粒体DNA
Encyclopedia
医学
线粒体DNA
释
mitochondrial DNA; mtDNA
线粒体DNA
真核细胞线粒体中的遗传物质。一个线粒体有5～10个拷贝脱氧核糖核酸（DNA）分子。线粒体DNA（mtDNA）呈双链闭环结构，存在于线粒体的基质内或依附于线粒体内膜。人类mtDNA全长为16569碱基对（bp），外环为重链（H链），内环为轻链（L链），均具有独立编码功能，共编码37个基因，包括2种核糖体核糖核酸（rRNA）、22种转移核糖核酸（tRNA）和13个参与氧化磷酸化作用的蛋白质亚单位。
Biology
mtDNA（mitochondrial DNA）
线粒体DNA
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