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中心体卫星蛋白 SSX2IP 促进中心体成熟。

The centriolar satellite protein SSX2IP promotes centrosome maturation.

机构信息

Zentrum für Molekulare Biologie der Universität Heidelberg (ZMBH), DKFZ-ZMBH Alliance, 69120 Heidelberg, Germany.

出版信息

J Cell Biol. 2013 Jul 8;202(1):81-95. doi: 10.1083/jcb.201302122. Epub 2013 Jul 1.

DOI:10.1083/jcb.201302122
PMID:23816619
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC3704989/
Abstract

Meiotic maturation in vertebrate oocytes is an excellent model system for microtubule reorganization during M-phase spindle assembly. Here, we surveyed changes in the pattern of microtubule-interacting proteins upon Xenopus laevis oocyte maturation by quantitative proteomics. We identified the synovial sarcoma X breakpoint protein (SSX2IP) as a novel spindle protein. Using X. laevis egg extracts, we show that SSX2IP accumulated at spindle poles in a Dynein-dependent manner and interacted with the γ-tubulin ring complex (γ-TuRC) and the centriolar satellite protein PCM-1. Immunodepletion of SSX2IP impeded γ-TuRC loading onto centrosomes. This led to reduced microtubule nucleation and spindle assembly failure. In rapidly dividing blastomeres of medaka (Oryzias latipes) and in somatic cells, SSX2IP knockdown caused fragmentation of pericentriolar material and chromosome segregation errors. We characterize SSX2IP as a novel centrosome maturation and maintenance factor that is expressed at the onset of vertebrate development. It preserves centrosome integrity and faithful mitosis during the rapid cleavage division of blastomeres and in somatic cells.

摘要

脊椎动物卵母细胞的减数分裂成熟是 M 期纺锤体组装过程中微管重排的极佳模型系统。在这里,我们通过定量蛋白质组学调查了非洲爪蟾卵母细胞成熟过程中微管相互作用蛋白模式的变化。我们将滑膜肉瘤 X 断点蛋白 (SSX2IP) 鉴定为一种新型纺锤体蛋白。使用非洲爪蟾卵提取物,我们表明 SSX2IP 以依赖于动力蛋白的方式在纺锤体两极积累,并与 γ-微管蛋白环复合物 (γ-TuRC) 和中心粒卫星蛋白 PCM-1 相互作用。SSX2IP 的免疫耗竭阻碍了 γ-TuRC 加载到中心体上。这导致微管核形成减少和纺锤体组装失败。在中胚层(Oryzias latipes)的快速分裂胚胎和体细胞中,SSX2IP 的敲低导致中心粒周围物质的碎片化和染色体分离错误。我们将 SSX2IP 鉴定为一种新型中心体成熟和维持因子,它在脊椎动物发育开始时表达。它在胚胎分裂和体细胞的快速有丝分裂过程中保持中心体的完整性和有丝分裂的忠实性。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9042/3704989/647c513a8154/JCB_201302122_Fig7.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9042/3704989/ef50712d3dbb/JCB_201302122R_Fig1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9042/3704989/2132c9de21ee/JCB_201302122_Fig2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9042/3704989/20d1eb84eaeb/JCB_201302122R_Fig3.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9042/3704989/7e4c50ef40d6/JCB_201302122_Fig4.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9042/3704989/1bd38e460d65/JCB_201302122R_Fig5.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9042/3704989/50ff81e6a3de/JCB_201302122_Fig6.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9042/3704989/647c513a8154/JCB_201302122_Fig7.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9042/3704989/ef50712d3dbb/JCB_201302122R_Fig1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9042/3704989/2132c9de21ee/JCB_201302122_Fig2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9042/3704989/20d1eb84eaeb/JCB_201302122R_Fig3.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9042/3704989/7e4c50ef40d6/JCB_201302122_Fig4.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9042/3704989/1bd38e460d65/JCB_201302122R_Fig5.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9042/3704989/50ff81e6a3de/JCB_201302122_Fig6.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9042/3704989/647c513a8154/JCB_201302122_Fig7.jpg

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2
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Eur J Cell Biol. 2011 Dec;90(12):983-9. doi: 10.1016/j.ejcb.2011.07.007. Epub 2011 Sep 25.
3
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J Biol Chem. 2025 May 2;301(6):108561. doi: 10.1016/j.jbc.2025.108561.
4
Defining a cohort of anemia-activated cis elements reveals a mechanism promoting erythroid precursor function.定义一组贫血激活的顺式元件揭示了一种促进红系前体细胞功能的机制。
Blood Adv. 2023 Oct 24;7(20):6325-6338. doi: 10.1182/bloodadvances.2022009163.
5
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Front Mol Biosci. 2023 Jan 4;9:1106477. doi: 10.3389/fmolb.2022.1106477. eCollection 2022.
6
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