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Cited by 596

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Isobaric Labeling-Based Relative Quantification in Shotgun Proteomics

Open access
Rauniyar, Navin, Yates, John R.·2014·Journal of Proteome Research

Abstract

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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Crossref · 10.1021/pr500880b

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Metadata

Authors
Rauniyar, N., & Yates, J. R.
Venue
Journal of Proteome Research
Published
2014-11-04
Volume
13
Issue
12
Pages
5293-5309
ISSN
  • 1535-3893 (ISSN-L)
  • 1535-3907
OpenAlex
W2436016506
Cited by
596
References
6
FWCI
14.83
Type
journal article
Language
en
Open access
hybrid

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