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Novel findings on endoribonuclease activity of proteasomes.

机译:对蛋白酶体的内联核酸酶活性的新发现。

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摘要

26S proteasomes are large multisubunit enzymatic complexes that play the key role in degradation and processing of cellular proteins. They maintain the level of important regulatory proteins in the cell, which makes them crucial for the cell life in general and for regulation of cellular events in particular. The proteasome population is structurally and functionally heterogeneous. 26S proteasomes consist of a 20S core particle and its associated various regulatory particles. Apart from several endopeptidase activities, the eukaryotic 20S core displays a number of other activities, including protein chaperone-, DNA-helicase- and endoribonuclease activities. The proteasome activities are very well regulated, specifically due to post-translational modifications.
机译:26s蛋白质是大型多管酶酶复合物,其在细胞蛋白的降解和加工中起关键作用。 它们维持细胞中的重要调节蛋白水平,这使得它们对细胞生命的至关重要,特别是细胞事件的调节。 蛋白酶体群在结构上和功能性异质。 26s蛋白酶组成20S核颗粒及其相关的各种调节颗粒。 除了几种内肽酶活性外,真核生物20S核心显示出许多其他活动,包括蛋白质伴侣,DNA-螺旋酶和上衣物核酸酶活性。 蛋白酶体的活性非常良好,特别是由于翻译后修饰。

著录项

  • 来源
    《Cell cycle》 |2010年第6期|共1页
  • 作者

    Ovchinnikov LP;

  • 作者单位

    Institute of Protein Research Russian Academy of Sciences Pushchino Russia.;

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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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