Suppr超能文献

由磷酸化调节的核仁保留和核输出的独特基序。

Unique motif for nucleolar retention and nuclear export regulated by phosphorylation.

作者信息

Catez Frédéric, Erard Monique, Schaerer-Uthurralt Nathalie, Kindbeiter Karine, Madjar Jean-Jacques, Diaz Jean-Jacques

机构信息

INSERM U369, Faculté de Médecine Lyon-René Théophile Hyacinthe Laennec, 69372 Lyon Cedex 08, France.

出版信息

Mol Cell Biol. 2002 Feb;22(4):1126-39. doi: 10.1128/MCB.22.4.1126-1139.2002.

Abstract

By microinjecting purified glutathione S-transferase linked to all or parts of herpes simplex virus type 1 US11 protein into either the nucleus or the cytoplasm, we have demonstrated that this nucleolar protein exhibits a new type of localization signal controlling both retention in nucleoli and export to the cytoplasm. Saturated mutagenesis combined with computer modeling allowed us to draw the fine-structure map of this domain, revealing a new proline-rich motif harboring both activities, which are temperature dependent and regulated by phosphorylation. Finally, crossing the nuclear pore complex from the cytoplasm to the nucleus is an energy-dependent process for US11 protein, while getting to nucleoli through the nucleoplasm is energy independent.

摘要

通过将与单纯疱疹病毒1型US11蛋白的全部或部分相连的纯化谷胱甘肽S-转移酶显微注射到细胞核或细胞质中,我们已经证明这种核仁蛋白表现出一种新型的定位信号,该信号控制其在核仁中的保留以及向细胞质的输出。饱和诱变结合计算机建模使我们能够绘制该结构域的精细结构图,揭示了一个富含脯氨酸的新基序,该基序具有两种活性,这两种活性均依赖于温度并受磷酸化调节。最后,US11蛋白从细胞质穿过核孔复合体进入细胞核是一个能量依赖的过程,而通过核质到达核仁则不依赖能量。

相似文献

引用本文的文献

7
The nucleolus and viral infection.核仁与病毒感染。
Virol Sin. 2010 Jun;25(3):151-7. doi: 10.1007/s12250-010-3093-5. Epub 2010 Jun 6.
8
Characterization and prediction of protein nucleolar localization sequences.蛋白质核仁定位序列的特征化和预测。
Nucleic Acids Res. 2010 Nov;38(21):7388-99. doi: 10.1093/nar/gkq653. Epub 2010 Jul 26.

本文引用的文献

2
Functional architecture in the cell nucleus.细胞核中的功能结构
Biochem J. 2001 Jun 1;356(Pt 2):297-310. doi: 10.1042/0264-6021:3560297.
9
The nucleolus: an old factory with unexpected capabilities.核仁:一座具备意想不到功能的老工厂。
Trends Cell Biol. 2000 May;10(5):189-96. doi: 10.1016/s0962-8924(00)01738-4.

文献AI研究员

20分钟写一篇综述,助力文献阅读效率提升50倍。

立即体验

用中文搜PubMed

大模型驱动的PubMed中文搜索引擎

马上搜索

文档翻译

学术文献翻译模型,支持多种主流文档格式。

立即体验