Related Experiment Video
Updated: Jun 25, 2026
Label-Free Quantitative Proteomics Workflow for Discovery-Driven Host-Pathogen Interactions
Published on: October 20, 2020
Two-dimensional proteome reference maps for the human pathogenic filamentous fungus Aspergillus fumigatus
Martin Vödisch1, Daniela Albrecht, Franziska Lessing
1Department of Molecular and Applied Microbiology, Leibniz Institute for Natural Product Research and Infection Biology-Hans-Knoell-Institute (HKI), Jena, Germany.
Abstract:
The filamentous fungus Aspergillus fumigatus has become the most important airborne fungal pathogen causing life-threatening infections in immunosuppressed patients. We established a 2-D reference map for A. fumigatus. Using MALDI-TOF-MS/MS, we identified 381 spots representing 334 proteins. Proteins involved in cellular metabolism, protein synthesis, transport processes and cell cycle were most abundant. Furthermore, we established a protocol for the isolation of mitochondria of A. fumigatus and developed a mitochondrial proteome reference map. 147 proteins represented by 234 spots were identified.
Insights
This study maps proteins in Aspergillus fumigatus, an airborne fungal pathogen. Researchers identified 334 proteins and established a mitochondrial proteome map, aiding in understanding fungal infections.
Area of Science:
- Medical Mycology
- Proteomics
- Molecular Biology
Background:
- Aspergillus fumigatus is a significant airborne fungal pathogen.
- It causes life-threatening infections, particularly in immunocompromised individuals.
Purpose of the Study:
- To create a comprehensive 2-D reference map of Aspergillus fumigatus proteome.
- To develop a mitochondrial proteome reference map for A. fumigatus.
- To identify key proteins involved in fungal cellular processes.
Main Methods:
- Utilized Matrix-Assisted Laser Desorption/Ionization-Time of Flight-Mass Spectrometry/Mass Spectrometry (MALDI-TOF-MS/MS).
- Established protocols for isolating Aspergillus fumigatus mitochondria.
- Developed 2-D reference maps for both whole cell and mitochondrial proteomes.
Main Results:
- Identified 334 proteins from 381 spots in the whole cell proteome map.
- Identified 147 proteins from 234 spots in the mitochondrial proteome map.
- Abundant proteins were involved in cellular metabolism, protein synthesis, transport, and cell cycle.
Conclusions:
- The established proteome maps provide a valuable resource for Aspergillus fumigatus research.
- Understanding the fungal proteome, especially mitochondrial proteins, can inform strategies against A. fumigatus infections.
- This work enhances the characterization of this critical fungal pathogen.
