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首页> 外文期刊>Cell cycle >Transactivation by temperature-dependent p53 mutants in yeast and human cells.
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Transactivation by temperature-dependent p53 mutants in yeast and human cells.

机译:酵母和人细胞温度依赖性P53突变体的反式激活。

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摘要

The p53 protein plays an important role in cancer prevention. In response to stress signals, p53 controls essential cell functions by regulating expression of its target genes. Full or partial loss of the p53 function in cancer cells usually results from mutations of the p53 gene. Some of them are temperature-dependent, allowing reactivation of the p53 function in certain temperature. These mutations can alter general transactivation ability of the p53 protein or they modify its transactivation only towards specific genes. We analyzed transactivation of several target genes by 23 temperature-dependent p53 mutants and stratified them into four functional groups. Seventeen p53 mutants exhibited temperature-dependency and discriminative character in human and yeast cells. Despite the differences of yeast and human cells, they allowed similar transactivation rates to the p53 mutants, thus providing evidence that functional analysis of separated alleles in yeast is valuable tool for assessment of the human p53 status.
机译:P53蛋白在癌症预防中起重要作用。响应于应力信号,P53通过调节其靶基因的表达来控制基本细胞功能。癌细胞中P53功能的全部或部分丧失通常由P53基因的突变产生。其中一些是温度依赖性的,允许在某些温度下重新激活p53功能。这些突变可以改变P53蛋白的一般反式活化能力,或者它们仅在特定基因上修饰其转移。我们分析了23个温度依赖性P53突变体的几种靶基因的转移,并分析为四个官能团。 17个P53突变体表现出人和酵母细胞中的温度依赖性和鉴别性质。尽管酵母和人体细胞差异,但它们允许与P53突变体类似的转移率,从而提供酵母中分离等位基因的功能分析是评估人p53状态的有价值的工具。

著录项

  • 来源
    《Cell cycle》 |2010年第11期|共8页
  • 作者单位

    Department of Pathology University Hospital Brno Czech Republic;

    Department of Experimental Biology Faculty of Science Masaryk University Brno Czech Republic.;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 细胞生物学;
  • 关键词

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