The lamin protein family.

The lamin protein family.
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DOI:
10.1186/gb-2011-12-5-222
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发表时间:
2011
期刊:
影响因子:
12.3
通讯作者:
Misteli T
Misteli T
中科院分区:
生物学1区
文献类型:
--
作者:
Dittmer TA;Misteli T

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核纤层蛋白是动物细胞核的主要结构蛋白。核纤层蛋白排列在核膜内部,在那里它们为蛋白质和染色质的结合提供平台并赋予机械稳定性。它们涉及广泛的核功能,包括高阶基因组组织、染色质调节、转录、DNA复制和DNA修复。核纤层蛋白是中间丝(IF)蛋白家族的成员,其构成细胞骨架的主要组分。核纤层蛋白是唯一的核IF,是IF蛋白超家族的祖先。核纤层蛋白在体内伸展成纤维,形成复杂的蛋白质网络,并且与所有IF蛋白一样,具有三重结构,其中两个球状头部和尾部结构域侧接中央α-螺旋杆结构域,其支持形成更高级的聚合物。核纤层蛋白的突变导致大量不同的人类疾病,统称为核纤层蛋白病,强调了它们的功能重要性。
The lamins are the major architectural proteins of the animal cell nucleus. Lamins line the inside of the nuclear membrane, where they provide a platform for the binding of proteins and chromatin and confer mechanical stability. They have been implicated in a wide range of nuclear functions, including higher-order genome organization, chromatin regulation, transcription, DNA replication and DNA repair. The lamins are members of the intermediate filament (IF) family of proteins, which constitute a major component of the cytoskeleton. Lamins are the only nuclear IFs and are the ancestral founders of the IF protein superfamily. Lamins polymerize into fibers forming a complex protein meshwork in vivo and, like all IF proteins, have a tripartite structure with two globular head and tail domains flanking a central α-helical rod domain, which supports the formation of higher-order polymers. Mutations in lamins cause a large number of diverse human diseases, collectively known as the laminopathies, underscoring their functional importance.
DOI: 10.1083/jcb.123.6.1671
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