Isobaric labeling-based relative quantification in shotgun proteomics.
Isobaric labeling-based relative quantification in shotgun proteomics.
复制标题
shot弹枪蛋白质组学中的基于等速标记的相对定量。
DOI:
10.1021/pr500880b
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发表时间:
2014-12-05
影响因子:
4.4
通讯作者:
Yates, John R., III
中科院分区:
文献类型:
--
作者:
Rauniyar, Navin;Yates, John R., III
关键词:
Mass spectrometry plays a key role in relative quantitative comparisons of proteins in order to understand their functional role in biological systems upon perturbation. In this review, we review studies that examine different aspects of isobaric labeling-based relative quantification for shotgun proteomic analysis. In particular, we focus on different types of isobaric reagents and their reaction chemistry (e.g., amine-, carbonyl-, and sulfhydryl-reactive). Various factors, such as ratio compression, reporter ion dynamic range, and others, cause an underestimation of changes in relative abundance of proteins across samples, undermining the ability of the isobaric labeling approach to be truly quantitative. These factors that affect quantification and the suggested combinations of experimental design and optimal data acquisition methods to increase the precision and accuracy of the measurements will be discussed. Finally, the extended application of isobaric labeling-based approach in hyperplexing strategy, targeted quantification, and phosphopeptide analysis are also examined.
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