ZC3HC1 Is a Novel Inherent Component of the Nuclear Basket, Resident in a State of Reciprocal Dependence with TPR.

ZC3HC1 Is a Novel Inherent Component of the Nuclear Basket, Resident in a State of Reciprocal Dependence with TPR.
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ZC3HC1是核篮子中一种新的固有成分,与TPR处于相互依赖状态。

DOI:
10.3390/cells10081937
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发表时间:
2021-07-30
期刊:
影响因子:
6
通讯作者:
Cordes VC
Cordes VC
中科院分区:
生物学2区
文献类型:
--
作者:
Gunkel P;Iino H;Krull S;Cordes VC

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核篮(NB)支架是锚定到核孔复合物(NPC)的纤维状结构,被认为是由卷曲螺旋占主导地位的蛋白TPR的多肽构建的,其他蛋白可以与其结合而不会影响NB的结构完整性。在这里,我们报告脊椎动物蛋白ZC3HC1作为一种新的固有成分的NB,常见于核膜(NE)的增殖和非分裂,终末分化细胞的不同形态发生的起源。以前被描述为具有其他功能的蛋白质,我们将NB组分ZC3HC1作为使不同量的TPR能够发生NB附加所需的蛋白质,这种ZC3HC1依赖性适用于不同体细胞类型的内斯处TPR总量的约一半。此外,指出NB结构比以前预期的更复杂,我们讨论了如何ZC3HC1和ZC3HC1依赖性TPR多肽可以扩大NB的功能库。
The nuclear basket (NB) scaffold, a fibrillar structure anchored to the nuclear pore complex (NPC), is regarded as constructed of polypeptides of the coiled-coil dominated protein TPR to which other proteins can bind without contributing to the NB’s structural integrity. Here we report vertebrate protein ZC3HC1 as a novel inherent constituent of the NB, common at the nuclear envelopes (NE) of proliferating and non-dividing, terminally differentiated cells of different morphogenetic origin. Formerly described as a protein of other functions, we instead present the NB component ZC3HC1 as a protein required for enabling distinct amounts of TPR to occur NB-appended, with such ZC3HC1-dependency applying to about half the total amount of TPR at the NEs of different somatic cell types. Furthermore, pointing to an NB structure more complex than previously anticipated, we discuss how ZC3HC1 and the ZC3HC1-dependent TPR polypeptides could enlarge the NB’s functional repertoire.
DOI: 10.4161/cc.4.11.2192
发表时间: 2005-11-01
期刊: CELL CYCLE
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