DeconMSn: a software tool for accurate parent ion monoisotopic mass determination for tandem mass spectra |
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Authors: | Mayampurath Anoop M Jaitly Navdeep Purvine Samuel O Monroe Matthew E Auberry Kenneth J Adkins Joshua N Smith Richard D |
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Institution: | Pacific Northwest National Laboratory, Richland, WA 99354, USA |
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Abstract: | Summary: DeconMSn accurately determines the monoisotopic massand charge state of parent ions from high-resolution tandemmass spectrometry data, offering significant improvement forLTQ_FT and LTQ_Orbitrap instruments over the commercially deliveredThermo Fisher Scientific's extract_msn tool. Optimal parention mass tolerance values can be determined using accurate massinformation, thus improving peptide identifications for high-massmeasurement accuracy experiments. For low-resolution data fromLCQ and LTQ instruments, DeconMSn incorporates a support-vector-machine-basedcharge detection algorithm that identifies the most likely chargeof a parent species through peak characteristics of its fragmentationpattern. Availability: http://ncrr.pnl.gov/software/ or http://www.proteomicsresource.org/ Contact: rds{at}pnl.gov Supplementary information: PowerPoint presentation/Poster onhttp://ncrr.pnl.gov/software/.
Associate Editor: Alfonso Valencia |
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