Pep3D

Pep3D visualizes LC-MS and LC-MS/MS data as two-dimensional density plots with m/z and retention time axes to enable inspection of peptide signals and linkage of collision-induced dissociation (CID) spectra to peptide sequences.

Key Features:

• Two-Dimensional Density Plot Visualization: Transforms raw LC-MS and LC-MS/MS data into 2D density plots with m/z and retention time axes.
• CID Spectrum and Peptide Linkage: Embeds links in the plot to corresponding collision-induced dissociation (CID) spectra and peptide sequences for LC-MS/MS experiments.
• LC-ESI-MS Data Handling: Supports data generated by liquid chromatography (LC) coupled with electrospray ionization mass spectrometry (ESI MS).
• Sample Quality and System Performance Assessment: Enables evaluation of sample quality and LC-ESI-MS system performance from visual patterns.
• Contaminant and Peptide Feature Detection: Highlights local patterns that can indicate chemical contaminants or specific peptide features.
• Application to Proteomics: Facilitates interpretation of complex peptide mixtures in mass spectrometry-based proteomics.

Scientific Applications:

• Sample Quality Assessment: Assess sample quality in analyses of complex peptide mixtures.
• LC-ESI-MS Experimental Optimization: Evaluate and optimize LC-ESI-MS system performance and experimental conditions.
• CID-Based Peptide Analysis: Inspect CID fragmentation spectra linked to peptide sequences for peptide validation and analysis.
• Contaminant Detection: Detect chemical contaminants and localized spectral features in LC-MS datasets.
• Mass Spectrometry-Based Proteomics: Support data interpretation across MS-based proteomics workflows.

Methodology:

Transforms LC-MS and LC-MS/MS data into two-dimensional density plots with axes for m/z and retention time and embeds links to corresponding CID spectra and peptide sequences.