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Mol Biosyst. 2011 Feb;7(2):292-303. doi: 10.1039/c0mb00159g. Epub 2010 Oct 25.

Targeted proteomics by selected reaction monitoring mass spectrometry: applications to systems biology and biomarker discovery.

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  • 1Ontario Cancer Institute, University Health Network, Toronto Medical Discovery Tower, Room 9-807, Toronto, ON M5G 1L7, Canada.


Mass Spectrometry-based proteomics is now considered a relatively established strategy for protein analysis, ranging from global expression profiling to the identification of protein complexes and specific post-translational modifications. Recently, Selected Reaction Monitoring Mass Spectrometry (SRM-MS) has become increasingly popular in proteome research for the targeted quantification of proteins and post-translational modifications. Using triple quadrupole instrumentation (QqQ), specific analyte molecules are targeted in a data-directed mode. Used routinely for the quantitative analysis of small molecular compounds for at least three decades, the technology is now experiencing broadened application in the proteomics community. In the current review, we will provide a detailed summary of current developments in targeted proteomics, including some of the recent applications to biological research and biomarker discovery.

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