神秘的核糖体柄。

IF 7.2 2区 生物学 Q1 BIOPHYSICS
Anders Liljas, Suparna Sanyal
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引用次数: 23

摘要

大的核糖体亚基有一个明显的特征,即延伸到核糖体外的柄。在细菌中,它被称为L12柄。茎的基部是蛋白质uL10,两个或三个二聚体的蛋白质bL12与之结合。在古生物和真核生物中,P1和P2蛋白构成茎。所有这些延伸蛋白,由于其N端和c端部分之间的铰链而具有高度的灵活性,对于某些翻译因子的适当功能化是必不可少的。几十年来,茎蛋白的作用一直是一个谜,但正在逐渐接近理解。在本文中,我们从核糖体研究的早期阶段开始,总结了迄今为止关于核糖体柄的结构和功能的知识。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
The enigmatic ribosomal stalk.

The large ribosomal subunit has a distinct feature, the stalk, extending outside the ribosome. In bacteria it is called the L12 stalk. The base of the stalk is protein uL10 to which two or three dimers of proteins bL12 bind. In archea and eukarya P1 and P2 proteins constitute the stalk. All these extending proteins, that have a high degree of flexibility due to a hinge between their N- and C-terminal parts, are essential for proper functionalization of some of the translation factors. The role of the stalk proteins has remained enigmatic for decades but is gradually approaching an understanding. In this review we summarise the knowhow about the structure and function of the ribosomal stalk till date starting from the early phase of ribosome research.

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来源期刊
Quarterly Reviews of Biophysics
Quarterly Reviews of Biophysics 生物-生物物理
CiteScore
12.90
自引率
1.60%
发文量
16
期刊介绍: Quarterly Reviews of Biophysics covers the field of experimental and computational biophysics. Experimental biophysics span across different physics-based measurements such as optical microscopy, super-resolution imaging, electron microscopy, X-ray and neutron diffraction, spectroscopy, calorimetry, thermodynamics and their integrated uses. Computational biophysics includes theory, simulations, bioinformatics and system analysis. These biophysical methodologies are used to discover the structure, function and physiology of biological systems in varying complexities from cells, organelles, membranes, protein-nucleic acid complexes, molecular machines to molecules. The majority of reviews published are invited from authors who have made significant contributions to the field, who give critical, readable and sometimes controversial accounts of recent progress and problems in their specialty. The journal has long-standing, worldwide reputation, demonstrated by its high ranking in the ISI Science Citation Index, as a forum for general and specialized communication between biophysicists working in different areas. Thematic issues are occasionally published.
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