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首页> 外文期刊>Molecular and Cellular Biology >Two homologous zinc finger genes identified by multicopy suppression in a SNF1 protein kinase mutant of Saccharomyces cerevisiae.
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Two homologous zinc finger genes identified by multicopy suppression in a SNF1 protein kinase mutant of Saccharomyces cerevisiae.

机译:通过酿酒酵母的SNF1蛋白激酶突变体中的多拷贝抑制鉴定出的两个同源锌指基因。

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The MSN2 gene was selected as a multicopy suppressor in a temperature-sensitive SNF1 protein kinase mutant of Saccharomyces cerevisiae. MSN2 encodes a Cys2His2 zinc finger protein related to the yeast MIG1 repressor and to mammalian early growth response and Wilms' tumor zinc finger proteins. Deletion of MSN2 caused no phenotype. A second similar zinc finger gene, MSN4, was isolated, and deletion of both genes caused phenotypic defects related to carbon utilization. Overexpression of the zinc finger regions was deleterious to growth. LexA-MSN2 and LexA-MSN4 fusion proteins functioned as strong transcriptional activators when bound to DNA. Functional roles of this zinc finger protein family are discussed.
机译:在酿酒酵母的温度敏感性SNF1蛋白激酶突变体中,选择MSN2基因作为多拷贝抑制剂。 MSN2编码Cys2His2锌指蛋白,该蛋白与酵母MIG1阻遏物,哺乳动物早期生长反应和Wilms的肿瘤锌指蛋白有关。 MSN2的删除没有引起表型。分离出第二个相似的锌指基因MSN4,两个基因的缺失引起与碳利用有关的表型缺陷。锌指区域的过表达对生长有害。 LexA-MSN2和LexA-MSN4融合蛋白在与DNA结合时起着强大的转录激活剂的作用。锌指蛋白家族的功能作用进行了讨论。

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