DeltaMass

DeltaMass is a software tool that helps identify and analyze modifications in proteins using liquid chromatography-mass spectrometry (LC-MS) experiments. It uses a kernel-density-based approach to estimate mass shifts and detect poorly resolved mass deltas. The software also maps observed mass shifts to known modifications from public databases and generates additional possible chemical changes. DeltaMass has an interactive graphical interface for visualizing the data and identifying potential artifacts, but it can also be used in a fully automated command-line mode to generate mass-shift peak lists.

Topic

Proteomics

Detail

  • Operation: Peak detection;Mass spectra calibration

  • Software interface: Command-line tool,Desktop application

  • Language: Java

  • License: The GNU General Public License v3.0

  • Cost: Free with restrictions

  • Version name: 1.0

  • Credit: NIH.

  • Input: Mass spectrometry spectra [mzML] [mzXML], Peptide identification [pepXML] [mzIdentML]

  • Output: Molecular mass

  • Contact: Dmitry M. Avtonomov dmitriya@umich.edu, Andy Kong andykong@umich.edu, Alexey I. Nesvizhskii nesvi@med.umich.edu

  • Collection: -

  • Maturity: Stable

Publications

  • DeltaMass: Automated Detection and Visualization of Mass Shifts in Proteomic Open-Search Results.
  • Avtonomov DM, et al. DeltaMass: Automated Detection and Visualization of Mass Shifts in Proteomic Open-Search Results. DeltaMass: Automated Detection and Visualization of Mass Shifts in Proteomic Open-Search Results. 2019; 18:715-720. doi: 10.1021/acs.jproteome.8b00728
  • https://doi.org/10.1021/acs.jproteome.8b00728.
  • PMID: 30523686
  • PMC: PMC8864583

Download and documentation

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