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Related Experiment Video

Updated: Feb 5, 2026

A Hydrogen-Deuterium Exchange Mass Spectrometry HDX-MS Platform for Investigating Peptide Biosynthetic Enzymes
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Optimized Workflow for Selecting Peptides for HDX-MS Data Analyses.

Lars Sørensen1,2, Rune Salbo3

  • 1Global Research Technologies, Novo Nordisk A/S, Novo Nordisk Park, DK-2760, Bagsværd, Denmark. lssx@novonordisk.com.

Journal of the American Society for Mass Spectrometry
|September 2, 2018
PubMed
Summary

This study introduces a new scoring system to efficiently filter peptides for hydrogen deuterium exchange mass spectrometry (HDX-MS) experiments. The method reduces manual inspection time, improving protein dynamics analysis.

Keywords:
Data analysisHDX-MSPeptide picking

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Area of Science:

  • Biochemistry and Structural Biology
  • Analytical Chemistry
  • Mass Spectrometry

Background:

  • Hydrogen deuterium exchange measured by mass spectrometry (HDX-MS) is crucial for studying protein structural dynamics in solution.
  • Identifying and validating peptides for HDX-MS analysis is a critical, yet time-consuming, manual step in bottom-up experiments.

Purpose of the Study:

  • To analyze the effectiveness of existing methods for filtering peptides for HDX-MS analysis.
  • To develop and present a novel, score-based system for improved peptide selection in HDX-MS experiments.

Main Methods:

  • Evaluation of current peptide filtering strategies based on software validity scores and replicate presence.
  • Development of a new scoring system utilizing a combination of MS/MS parameters to predict peptide quantifiability for HDX-MS.

Main Results:

  • Existing peptide filtering methods show limitations in predicting quantifiable HDX-MS data.
  • The novel score-based system demonstrates improved performance in distinguishing quantifiable from non-quantifiable peptides.
  • The new method significantly reduces the need for manual inspection of peptide spectra.

Conclusions:

  • The developed score-based system offers a more efficient approach to curating HDX-MS data.
  • This advancement streamlines the initial peptide identification process, saving valuable research time in protein structural studies.