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Cited by 278

The DOI matches its Crossref record; 2 of the 2 references it cites were found in a registry or an index.

A Correlation Algorithm for the Automated Quantitative Analysis of Shotgun Proteomics Data

MacCoss, Michael J., Wu, Christine C., Liu, Hongbin, Sadygov, Rovshan, Yates, John R.·2003·Analytical Chemistry

Abstract

Quantitative shotgun proteomic analyses are facilitated using chemical tags such as ICAT and metabolic labeling strategies with stable isotopes. The rapid high-throughput production of quantitative "shotgun" proteomic data necessitates the development of software to automatically convert mass spectrometry-derived data of peptides into relative protein abundances. We describe a computer program called RelEx, which uses a least-squares regression for the calculation of the peptide ion current ratios from the mass spectrometry-derived ion chromatograms. RelEx is tolerant of poor signal-to-noise data and can automatically discard nonusable chromatograms and outlier ratios. We apply a simple correction for systematic errors that improves the accuracy of the quantitative measurement by 32 +/- 4%. Our automated approach was validated using labeled mixtures composed of known molar ratios and demonstrated in a real sample by measuring the effect of osmotic stress on protein expression in Saccharomyces cerevisiae.

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Metadata

Authors
MacCoss, M. J., Wu, C. C., Liu, H., Sadygov, R., & Yates, J. R.
Venue
Analytical Chemistry
Published
2003-11-06
Volume
75
Issue
24
Pages
6912-6921
ISSN
  • 0003-2700 (ISSN-L)
  • 1520-6882
OpenAlex
W2068523567
Cited by
278
References
2
FWCI
8.93
Type
journal article
Language
en
Open access
closed

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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

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