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Related Concept Videos

MALDI-TOF Mass Spectrometry01:19

MALDI-TOF Mass Spectrometry

Mass spectrometry is a powerful characterization technique that can identify and separate a wide variety of compounds ranging from chemical to biological entities, based on their mass-to-charge ratio (m/z). The instruments that allow this detection, known as mass spectrometers, have three components: an ion source, a mass analyzer, and a detector. These spectrometers differ based on the nature of their ion source and analyzers.Matrix-assisted laser desorption ionization (MALDI) is a commonly...
Tandem Mass Spectrometry01:21

Tandem Mass Spectrometry

Tandem mass spectrometry is a technique that uses multiple mass analyzers in series to obtain a higher selectivity and reduce chemical noise during analyte detection. Instruments with multiple analyzers separated by an interaction cell enable secondary fragmentation and selected study of the fragment ions.Secondary fragmentations occur in the interaction cell and can be induced by various factors. Fragmentation induced by collision with inert gases, such as N2, Ar, He, etc., is called...
Proteomics01:33

Proteomics

A proteome is the entire set of proteins that a cell type produces. We can study proteomes using the knowledge of genomes because genes code for mRNAs, and the mRNAs encode proteins. Although mRNA analysis is a step in the right direction, not all mRNAs are translated into proteins.
Proteomics is the study of proteomes' function. It involves the large-scale systematic study of the proteome to denote the protein complement expressed by a genome. Scientist Mark Wilkins coined the term proteomics...
Mass Spectrometry: Overview01:19

Mass Spectrometry: Overview

Mass spectrometry is an analytical technique used to determine the molecular mass and molecular formula of a compound. The basic principle of mass spectrometry is to generate ions from the analyte molecule and measure these ion abundances against their molecular mass. One common type of ionization, known as electron ionization or EI, bombards the analyte molecules in the gas phase with high-energy electron beams. The electron beams displace an electron from the molecule and leave behind a...
High-Resolution Mass Spectrometry (HRMS)01:15

High-Resolution Mass Spectrometry (HRMS)

The resolution of a mass spectrometer depends on the efficiency of separating ions with different ion masses. The mass of an atom is approximated to the sum of the masses of protons and neutrons inside, considering the masses of protons and neutrons as equal. However, the masses of the proton (1.6726 × 10−24 g) and neutron (1.6749 × 10−24 g) are not truly equal. There is a minor error in the expression of atomic masses relative to the simplest atom of hydrogen. For example, the mass of helium...
Mass Spectrum: Interpretation01:24

Mass Spectrum: Interpretation

An unknown compound can be established by identifying the molecular ion peak in the mass spectrum. The molecular ion peak is often weak or absent due to the predominance of fragmentation in high-energy electron beams. In such cases, a soft-energy electron beam can be used to scan the spectrum to enhance the intensity of the molecular ion peak. Additionally, chemical ionization, field ionization, and desorption ionization spectra are used to obtain a relatively intense molecular ion peak.To...

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Navigating the Mass Spectrometry-Based Proteomic Data Using Free Computational Tools
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Navigating the Mass Spectrometry-Based Proteomic Data Using Free Computational Tools

Published on: August 19, 2025

Thermo-msf-parser: an open source Java library to parse and visualize Thermo Proteome Discoverer msf files.

Niklaas Colaert1, Harald Barsnes, Marc Vaudel

  • 1Department of Medical Protein Research, VIB, Ghent, Belgium.

Journal of Proteome Research
|July 1, 2011
PubMed
Summary
This summary is machine-generated.

A new Java library parses Thermo Proteome Discoverer msf files for peptide identification and quantification. This tool simplifies analysis of proteomics data, making complex quantitative proteomics information more accessible.

Related Experiment Videos

Last Updated: May 31, 2026

Navigating the Mass Spectrometry-Based Proteomic Data Using Free Computational Tools
07:01

Navigating the Mass Spectrometry-Based Proteomic Data Using Free Computational Tools

Published on: August 19, 2025

Area of Science:

  • Proteomics
  • Bioinformatics
  • Computational Biology

Background:

  • Thermo Proteome Discoverer is a popular software for peptide-centric proteomics, integrating identification and quantification.
  • Its close integration with Thermo mass spectrometers enhances its utility in proteomics research.
  • Analyzing output files (msf) from this software can be complex, requiring specialized tools.

Purpose of the Study:

  • To develop a Java library for parsing Thermo Proteome Discoverer's msf output files.
  • To provide a user-friendly graphical interface for accessing msf file information.
  • To facilitate the analysis and validation of quantitative proteomics data.

Main Methods:

  • Development of a Java library to parse msf files generated by Thermo Proteome Discoverer.
  • Implementation of a graphical user interface (GUI) for intuitive data access.
  • Integration with Rover software for advanced quantitative proteomics analysis and validation.

Main Results:

  • A functional Java library capable of parsing msf files is presented.
  • A graphical user interface provides convenient access to proteomics data within msf files.
  • The developed tools support the analysis and validation of quantitative proteomics information.

Conclusions:

  • The Java library and associated GUI simplify the extraction and analysis of data from Thermo Proteome Discoverer.
  • These tools enhance the accessibility and utility of quantitative proteomics information.
  • The freely available resources promote wider adoption and application in proteomics research.