Structural features and functional implications of proteins enabling the robustness of Deinococcus radiodurans.

Structural features and functional implications of proteins enabling the robustness of Deinococcus radiodurans.
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蛋白质的结构特征和功能含义使耐辐射奇球菌具有稳健性。

DOI:
10.1016/j.csbj.2020.09.036
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发表时间:
2020
影响因子:
6
通讯作者:
Zhao Y
Zhao Y
中科院分区:
生物学2区
文献类型:
--
作者:
Chen Z;Tang Y;Hua Y;Zhao Y

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耐辐射异常球菌可以在极端条件下生存,包括高剂量的DNA损伤剂和电离辐射,干燥和氧化应激。高效的细胞DNA修复机制和抗氧化系统都有助于这种细菌的极端抵抗力,使其成为研究环境适应细胞机制的理想生物体。在过去的二十年里,在这种细菌中鉴定出的应激相关蛋白的数量迅速增加。新发现的蛋白质揭示了结构、机制和功能的共同性和多样性,这影响了广泛的细胞功能。在这里,我们回顾了这些蛋白质的独特和一般的结构特征,并讨论了这些研究如何提高我们对环境胁迫适应机制的理解。耐辐射的
Deinococcus radiodurans can survive under extreme conditions, including high doses of DNA damaging agents and ionizing radiation, desiccation, and oxidative stress. Both the efficient cellular DNA repair machinery and antioxidation systems contribute to the extreme resistance of this bacterium, making it an ideal organism for studying the cellular mechanisms of environmental adaptation. The number of stress-related proteins identified in this bacterium has mushroomed in the past two decades. The newly identified proteins reveal both commonalities and diversity of structure, mechanism, and function, which impact a wide range of cellular functions. Here, we review the unique and general structural features of these proteins and discuss how these studies improve our understanding of the environmental stress adaptation mechanisms of D. radiodurans.
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