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首页> 外文期刊>Proceedings of the National Academy of Sciences of the United States of America >Carcinogens induce reversion of the mouse pink-eyed unstable mutation
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Carcinogens induce reversion of the mouse pink-eyed unstable mutation

机译:致癌物诱导小鼠粉红眼不稳定突变的逆转

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摘要

Deletions and other genome rearrangements are associated with carcinogenesis and inheritable diseases. The pink-eyed unstable (p~un) mutation in the mouse is caused by duplication of a 70-kb internal fragment of the p gene. Spontaneous reversion events in homozygous p~un/p~un mice occur through deletion of a duplicated sequence. Reversion events in premelanocytes in the mouse embryo detected as black spots on the gray fur of the offspring were inducible by the carcinogen x-rays, ethyl methanesulfonate, methyl meth- anesulfonate, ethyl nitrosourea, benzo[a]pyrene, trichloro- ethylene, benzene, and sodium arsenate.
机译:缺失和其他基因组重排与致癌作用和可遗传疾病有关。小鼠中的粉红色眼状不稳定(pun)突变是由p基因的70 kb内部片段重复引起的。纯合pun / pun小鼠中的自发回复事件是通过删除重复序列而发生的。致癌物X射线,甲磺酸乙酯,甲磺酸甲酯,亚硝基硫脲,苯并[a] py,三氯乙烯,苯引起了小鼠胚胎前黑素细胞的还原事件,该事件被检测为后代灰色皮毛上的黑斑。和砷酸钠。

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