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Gene interactions in the DNA damage-response pathway identified by genome-wide RNA-interference analysis of synthetic lethality

机译:全合成杀伤力的全基因组RNA干扰分析确定了DNA损伤反应途径中的基因相互作用

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摘要

Here, we describe a systematic search for synthetic gene interactions in a multicellular organism, the nematode Caenorhabditis elegans. We established a high-throughput method to determine synthetic gene interactions by genome-wide RNA interference and identified genes that are required to protect the germ line against DNA double-strand breaks. Besides known DNA-repair proteins such as the C. elegans orthologs of TopBP1, RPA2, and RAD51, eight genes previously unassociated with a double-strand-break response were identified. Knockdown of these genes increased sensitivity to ionizing radiation and camptothecin and resulted in increased chromosomal nondisjunction. All genes have human orthologs that may play a role in human carcinogenesis.
机译:在这里,我们描述了在多细胞生物线虫秀丽隐杆线虫中的合成基因相互作用的系统搜索。我们建立了一种高通量方法,可通过全基因组RNA干扰确定合成基因的相互作用,并鉴定出保护种系免受DNA双链断裂所需的基因。除了已知的DNA修复蛋白(例如TopBP1,RPA2和RAD51的秀丽线虫直系同源物)外,还鉴定了八个以前与双链断裂反应不相关的基因。这些基因的敲除增加了对电离辐射和喜树碱的敏感性,并导致增加了染色体的非分离性。所有基因都有可能在人类致癌作用中起作用的人类直系同源物。

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