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Reputable Mentor II
Reputable Mentor II
Hoopmann MR, Merrihew GE, von Haller PD, MacCoss MJ.
J Proteome Res. 2009 Apr;8(4):1870-5.
The identification of peptides by microcapillary liquid chromatography-tandem mass spectrometry (microLC-MS/MS) has become routine because of the development of fast scanning mass spectrometers, data-dependent acquisition, and database searching algorithms. However, many peptides within the detection limit of the mass spectrometer remain unidentified because of limitations in MS/MS sampling speed despite the dynamic range and peak capacity of the instrument. We have developed an automated approach that uses the mass spectra from high resolution microLC-MS data to define the molecular species present in the mixture and directs the acquisition of MS/MS spectra to precursors that were missed in prior analyses. This approach increases the coverage of the molecular species sampled by MS/MS and consequently the number of peptides and proteins identified during the acquisition of technical or biological replicates using a simple one-dimensional chromatographic separation. The combination of a unique workflow and custom software contribute to the improved identification of molecular features detected in proteomics experiments of complex protein mixtures.

http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2671646/?tool=pubmed
University of Washington, Department of Genome Sciences, Seattle, Washington 98195, USA.
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