MMS2plot

An R package for visualizing multiple MS/MS spectra for groups of modified and non-modified peptides. The package mms2plot visualizes multiple tandem mass spectrometry (MS/MS or MS2) for modificated and/or non-modified peptides identified from the same raw MS files, annotated by peptide identification algorithms. It will output a mirror-style plots for two peptide-spectrum matches (PSMs) and an aligned plot for more than two PSMs. MMS2plot features a batch mode and generates the output images in vector graphics file format (i.e. PDF) that facilitate evaluation and publication of the PSM assignment.The output file width is recommended as 3.35 inch (single column) or 7 inch (double column).