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Reputable Mentor II
Reputable Mentor II
Wenger CD, Lee MV, Hebert AS, McAlister GC, Phanstiel DH, Westphall MS, Coon JJ.
Nat Methods. 2011 Oct 2;8(11):933-5.
We describe a mass spectrometry method, QuantMode, which improves accuracy of isobaric tag–based quantification by alleviating the pervasive problem of precursor interference, simultaneous isolation and fragmentation of impurities, through gas-phase purification. QuantMode analysis of a yeast sample 'contaminated' with interfering human peptides showed substantially improved quantitative accuracy compared to a standard scan, with a small loss of spectral identifications. This technique enables large-scale, multiplexed quantitative proteomics using isobaric tagging.
Department of Chemistry, University of Wisconsin-Madison, Madison, Wisconsin, USA.
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