Mass spectrometric analysis of histone proteoforms.

Mass spectrometric analysis of histone proteoforms.
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DOI:
10.1146/annurev-anchem-071213-015959
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发表时间:
2014
期刊:
Annual review of analytical chemistry (Palo Alto, Calif.)
影响因子:
--
通讯作者:
Garcia BA
Garcia BA
中科院分区:
其他
文献类型:
--
作者:
Yuan ZF;Arnaudo AM;Garcia BA

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组蛋白在染色质中起着重要的作用,由于各种翻译后修饰和序列变异,这被称为组蛋白蛋白质型。调查修改和变体是一个持续的挑战。以前的方法是基于抗体的,因为它们通常一次只能检测到一种修饰,所以它们不适合研究组蛋白上修饰的各种组合。幸运的是,质谱分析已经成为一种用于组蛋白分析的高通量技术,并且不需要关于任何修饰的先验知识。从质谱仪产生的数据中,可以很容易地获得修饰和变体的鉴定和定量。基于这些信息,可以揭示组蛋白在各种细胞环境中的功能。因此,质谱法在组蛋白蛋白质型的研究中继续发挥重要作用。在这篇综述中,我们将讨论质谱的分析策略,它们在组蛋白上的应用,以及一些关键的挑战。
Histones play important roles in chromatin, due to various post-translational modifications and sequence variants, which are called histone proteoforms. Investigating modifications and variants is an on-going challenge. Previous methods are based on antibodies and because they usually detect only one modification at a time, they are not suitable to study the various combinations of modifications on histones. Fortunately, mass spectrometry has emerged as a high-throughput technology for histone analysis and does not require prior knowledge about any modifications. From the data generated by mass spectrometers, both identification and quantification of modifications and variants can be easily obtained. Based on this information, the functions of histones in various cellular contexts can be revealed. Therefore, mass spectrometry continues to play an important role in the study of histone proteoforms. In this review, we will discuss the analysis strategies of mass spectrometry, their applications on histones, and some key remaining challenges.
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