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Mutations in RAD6, a yeast gene encoding a ubiquitin-conjugating enzyme, stimulate retrotransposition.

机译:RAD6是一种编码泛素结合酶的酵母基因,其突变刺激逆转座子。

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The Saccharomyces cerevisiae DNA repair gene RAD6 encodes a ubiquitin-conjugating enzyme which polyubiquitinates histones in vitro. Here we show that mutations in rad6 increase the frequency of transposition of the retrotransposon Ty into the CAN1 and URA3 loci. Using isogenic RAD6 and rad6 strains, we measured a more than 100-fold increase in the spontaneous rate of retrotransposition due to rad6, although there was no increase in the Ty message level. This is the first time that a mutation in a host gene has been shown to result in an increased rate of retrotransposition.
机译:酿酒酵母DNA修复基因RAD6编码一种泛素结合酶,该酶在体外使组蛋白多聚泛素化。在这里,我们显示rad6中的突变增加了逆转录转座子Ty转座到CAN1和URA3基因座的频率。使用同基因RAD6和rad6菌株,我们测量到由于rad6而引起的自发逆转录自转速率增加了100倍以上,尽管Ty信息水平没有增加。这是首次证明宿主基因中的突变导致逆转座率增加。

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