Reporter ion-based mass spectrometry approaches for the detection of non-enzymatic protein modifications in biological samples.
Reporter ion-based mass spectrometry approaches for the detection of non-enzymatic protein modifications in biological samples.
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基于报告离子的质谱方法用于检测生物样品中的非酶促蛋白质修饰。
DOI:
10.1016/j.jprot.2013.03.033
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发表时间:
2013
影响因子:
3.3
通讯作者:
Tveen-Jensen K
中科院分区:
文献类型:
--
作者:
Tveen-Jensen K
Development of mass spectrometry techniques to detect protein oxidation, which contributes to signalling and inflammation, is important. Label-free approaches have the advantage of reduced sample manipulation, but are challenging in complex samples owing to undirected analysis of large data sets using statistical search engines. To identify oxidised proteins in biological samples, we previously developed a targeted approach involving precursor ion scanning for diagnostic MS3ions from oxidised residues. Here, we tested this approach for other oxidations, and compared it with an alternative approach involving the use of extracted ion chromatograms (XICs) generated from high-resolution MSMS data using very narrow mass windows. This accurate mass XIC data methodology was effective at identifying nitrotyrosine, chlorotyrosine, and oxidative deamination of lysine, and for tyrosine oxidations highlighted more modified peptide species than precursor ion scanning or statistical database searches. Although some false positive peaks still occurred in the XICs, these could be identified by comparative assessment of the peak intensities. The method has the advantage that a number of different modifications can be analysed simultaneously in a single LC–MSMS run.This article is part of a Special Issue entitled: Posttranslational Protein modifications in biology and Medicine.Biological significanceThe use of accurate mass extracted product ion chromatograms to detect oxidised peptides could improve the identification of oxidatively damaged proteins in inflammatory conditions.
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影响因子:
7.4
作者:
Toshinori Suzuki;H. Mower;M. Friesen;I. Gilibert;T. Sawa;H. Ohshima
通讯作者:
Toshinori Suzuki;H. Mower;M. Friesen;I. Gilibert;T. Sawa;H. Ohshima
影响因子:
3.3
作者:
Bollineni, Ravi Ch;Fedorova, Maria;Hoffmann, Ralf
通讯作者:
Hoffmann, Ralf
影响因子:
3.3
作者:
Li,Bensheng;Held,JasonM;Schilling,Birgit;Danielson,StevenR;Gibson,BradfordW
通讯作者:
Gibson,BradfordW
影响因子:
4.4
作者:
Madian, Ashraf G.;Regnier, Fred E.
通讯作者:
Regnier, Fred E.
影响因子:
4.1
作者:
Dasari S;Chambers MC;Codreanu SG;Liebler DC;Collins BC;Pennington SR;Gallagher WM;Tabb DL
通讯作者:
Tabb DL