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Cited by 445

The DOI matches its Crossref record; 34 of the 34 references it cites were found in a registry or an index.

Isotope-labeled Protein Standards

Open access
Brun, Virginie, Dupuis, Alain, Adrait, Annie, Marcellin, Marlène, Thomas, Damien, Court, Magali, Vandenesch, François, Garin, Jérôme·2007·Molecular & Cellular Proteomics

Abstract

Diagnostic development and public health surveillance require technologies that provide specific identification and absolute quantification of protein biomarkers. Beside immunologically related techniques (e.g. enzyme-linked immunosorbent assay), MS is gaining increasing interest due to its high sensitivity and specificity. Furthermore, MS-based analyses are extremely accurate quantitatively, provided that suitable reference standards are available. Recently, the use of chemically synthesized isotope-labeled marker peptides for MS-based absolute quantification of proteins has led to major advances. However, we show here that the use of such peptides can lead to severe biases. In this work, we present an innovative strategy (Protein Standard Absolute Quantification) that uses in vitro-synthesized isotope-labeled full-length proteins as standards for absolute quantification. As those protein standards perfectly match the biochemical properties of the target proteins, they can be directly added into the samples to be analyzed, allowing a highly accurate quantification of proteins even in prefractionated complex samples. The power of our Protein Standard Absolute Quantification methodology for accurate absolute quantification of biomarkers was demonstrated both on water and urine samples contaminated with Staphylococcus aureus superantigenic toxins as typical biomarkers of public health interest.

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Crossref · 10.1074/mcp.m700163-mcp200

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Metadata

Authors
Brun, V., Dupuis, A., Adrait, A., Marcellin, M., Thomas, D., Court, M., Vandenesch, F., & Garin, J.
Venue
Molecular & Cellular Proteomics
Publisher
Elsevier BV
Published
2007-12
Volume
6
Issue
12
Pages
2139-2149
ISSN
1535-9476 (ISSN-L)
OpenAlex
W2171081285
Cited by
445
References
34
FWCI
10.60
Type
journal article
Language
en
Open access
hybrid

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CoChat. (2026). Citation check: Isotope-labeled Protein Standards. https://app.cochat.ai/papers/10.1074/mcp.m700163-mcp200
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Brun, V., Dupuis, A., Adrait, A., Marcellin, M., Thomas, D., Court, M., Vandenesch, F., & Garin, J. (2007). Isotope-labeled Protein Standards. Molecular & Cellular Proteomics. https://doi.org/10.1074/mcp.m700163-mcp200

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