Chemical cross-linking with mass spectrometry: a tool for systems structural biology.

Chemical cross-linking with mass spectrometry: a tool for systems structural biology.
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DOI:
10.1016/j.cbpa.2018.08.006
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发表时间:
2019-03
影响因子:
7.8
通讯作者:
Bruce JE
Bruce JE
中科院分区:
生物学2区
文献类型:
--
作者:
Chavez JD;Bruce JE

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支持生命的生物过程是由一系列高度动态的蛋白质结构和相互作用组成的相互作用组来协调的。定义相互作用组,可视化结构和相互作用如何变化和功能,以支持生命是必不可少的,以提高对基本分子过程的理解,但代表了任何单一的分析技术无法满足的挑战。化学交联与质谱法提供了蛋白质和蛋白质复合物内的近端氨基酸残基的鉴定,产生低分辨率的结构信息。这种方法主要用于提供对分离的蛋白质复合物的结构洞察,并且对于与常规结构生物学研究不相容的分子特别有用。在这里,我们讨论了交联和质谱技术的最新进展,这些技术提供了大规模或系统级的相互作用组数据,并成功应用于分离的细胞器,细胞裂解物,病毒颗粒,完整的细菌和哺乳动物培养的细胞和组织样品。
Biological processes supporting life are orchestrated by a highly dynamic array of protein structures and interactions comprising the interactome. Defining the interactome, visualizing how structures and interactions change and function to support life is essential to improved understanding of fundamental molecular processes, but represents a challenge unmet by any single analytical technique. Chemical cross-linking with mass spectrometry provides identification of proximal amino acid residues within proteins and protein complexes, yielding low resolution structural information. This approach has predominantly been employed to provide structural insight on isolated protein complexes, and has been particularly useful for molecules that are recalcitrant to conventional structural biology studies. Here we discuss recent developments in cross-linking and mass spectrometry technologies that are providing large-scale or systems-level interactome data with successful applications to isolated organelles, cell lysates, virus particles, intact bacterial and mammalian cultured cells and tissue samples.
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