The high mobility group box: the ultimate utility player of a cell.

The high mobility group box: the ultimate utility player of a cell.
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DOI:
10.1016/j.tibs.2012.09.003
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发表时间:
2012-12
影响因子:
13.8
通讯作者:
Churchill, Mair E. A.
Churchill, Mair E. A.
中科院分区:
生物学1区
文献类型:
--
作者:
Malarkey, Christopher S.;Churchill, Mair E. A.

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高迁移率族蛋白(HMG)盒蛋白是一种广泛存在于细胞内的DNA结合蛋白,具有广泛的功能。HMG盒DNA结合结构域的结构和DNA结合和弯曲的一般机制已经知道了十多年。然而,新的机制,调节HMG盒蛋白的细胞内易位,HMG盒蛋白识别DNA的序列特异性和无序列特异性,最近才被发现。本文主要对Sry样HMG盒家族、HMGB1和线粒体转录因子A进行综述。对于这些蛋白质,结构和生物化学研究表明,HMG盒蛋白模块化,与其他DNA结合蛋白和细胞受体的相互作用,以及翻译后修饰是其多种功能的关键调节因子。
High mobility group (HMG) box proteins are abundant and ubiquitous DNA binding proteins with a remarkable array of functions throughout the cell. The structure of the HMG-box DNA binding domain and general mechanisms of DNA binding and bending have been known for more than a decade. However, new mechanisms that regulate HMG-box protein intracellular translocation, and by which HMG-box proteins recognize DNA with and without sequence specificity, have only recently been uncovered. This review focuses primarily on the Sry-like HMG box family, HMGB1, and mitochondrial transcription factor A. For these proteins, structural and biochemical studies have shown that HMG-box protein modularity, interactions with other DNA binding proteins and cellular receptors, and post-translational modifications are key regulators of their diverse functions.
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