Regulation of chromatin structure and function by HMGN proteins.

Regulation of chromatin structure and function by HMGN proteins.
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HMGN 蛋白对染色质结构和功能的调节。

DOI:
10.1016/j.bbagrm.2009.11.016
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发表时间:
2010-01
影响因子:
4.7
通讯作者:
Bustin, Michael
Bustin, Michael
中科院分区:
生物学2区
文献类型:
--
作者:
Postnikov, Yuri;Bustin, Michael

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高迁移率族核小体结合蛋白(HMGN)是一种非组蛋白的染色体结构蛋白,可与核小体结合并调节染色质的结构和功能。HMGN蛋白与核小体的相互作用是动态的,并且蛋白质与连接体组蛋白H1染色质结合位点竞争。HMGN减少了H1介导的染色质纤维的压实,并促进调节因子靶向染色质。它们调节细胞表观遗传特征,影响基因表达,并影响生物学过程,如发育和细胞对环境和激素信号的反应。在这里,我们回顾了HMGN在染色质结构中的作用,HMGN蛋白和组蛋白修饰之间的联系,并讨论了这种联系对核过程和细胞表型的影响。
High Mobility Group Nucleosome-binding (HMGN) proteins are architectural non-histone chromosomal proteins that bind to nucleosomes and modulate the structure and function of chromatin. The interaction of HMGN proteins with nucleosomes is dynamic and the proteins compete with the linker histone H1 chromatin binding sites. HMGNs reduce the H1 mediated compaction of the chromatin fiber and facilitate the targeting of regulatory factors to chromatin. They modulate the cellular epigenetic profile, affect gene expression, and impact the biological processes such as development and the cellular response to environmental and hormonal signals. Here we review the role of HMGN in chromatin structure, the link between HMGN proteins and histone modifications, and discuss the consequence of this link on nuclear processes and cellular phenotype.
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发表时间: 2005-08-01
期刊: CANCER RESEARCH
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