mMass - Open Source Mass Spectrometry Tool

mMass presents open source multi-platform package of tools for precise mass spectrometric data analysis and interpretation. It is written in Python language and released under GNU General Public License, so it’s portable to different computer platforms and has a good potential to be easily modified or extended by modules of specific needs.

mMass User Interface

Latest News

Jul 19, 2010 - mMass 3.7 released - Comments 0

Version 3.7 of mMass software has been released with additional new features and important bug fixes.

  • New: Simplified interface for Protein Prospector tools MS-Fit and MS-Tag. (Since I did not received any response from original developers, current implementation is rather experimental.)
  • New: FWHM and resolution are now calculated for each peak and are shown in Peaklist Panel.
  • New: Global sequence modifications can now be stored as presets.
  • New: Spectrum polarity can now be set in Document Info panel.
  • Fixed: Application crashed when "None" document was sent into Calibration Panel.
  • Fixed: Some of the potential peaks were skipped in Shoulder Peaks Removal algorithm.
  • Fixed: Data matching for negative spectra was not possible with Ignore charge option unchecked.

Jul 05, 2010 - mMass 3.6 released

Version 3.6 of mMass software has been released with additional new features and important bug fixes.

  • New: Match Summary is now available for each data matching.
  • New: Remove shoulder peaks option is now available for FTMS data peak-picking. Since I have only some data from our FTICR instrument, please let me know if you would have any problem with this feature on your FTMS data.
  • New: All annotations and sequence matches can now be removed at once, using context menu in Documents Panel.
  • New: Compounds and calibration masses can now be imported using corresponding library editor and can be shared easily. See User's Guide for more info.
  • Improved: Faster peak-picking, especially when Adaptive threshold option is used.
  • Improved: Spectrum flipping is now accessible from the View menu.
  • Improved: Updated lipids library.
  • Fixed: Loading of some mzXML files with parameter "compressionType=none" was not possible.
  • Fixed: Application crashed on a single right-click in Isotopic pattern panel.

Jun 04, 2010 - mMass 3.5 released

One of the most requested feature in the recent ASMS conference was possibility to flip spectra to enable more efficient comparison. Check this new feature in mMass 3.5, released today.

  • New: Possibility to vertically flip spectra in Spectrum Viewer. (Right-click on the document in Document Panel and choose "Flip Spectrum".
  • New: -H2O can now be searched in Compounds Search tool.
  • Fixed: Normalized view did not worked for non-profile spectra.

(News Archive)