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Review article - Peer-reviewed, 2020

Insight to Functional Conformation and Noncovalent Interactions of Protein-Protein Assembly Using MALDI Mass Spectrometry

Giampa, Marco; Sgobba, Elvira


Noncovalent interactions are the keys to the structural organization of biomolecule e.g., proteins, glycans, lipids in the process of molecular recognition processes e.g., enzyme-substrate, antigen-antibody. Protein interactions lead to conformational changes, which dictate the functionality of that protein-protein complex. Besides biophysics techniques, noncovalent interaction and conformational dynamics, can be studied via mass spectrometry (MS), which represents a powerful tool, due to its low sample consumption, high sensitivity, and label-free sample. In this review, the focus will be placed on Matrix-Assisted Laser Desorption Ionization Mass Spectrometry (MALDI-MS) and its role in the analysis of protein-protein noncovalent assemblies exploring the relationship within noncovalent interaction, conformation, and biological function.


MALDI; protein assembly; noncovalent interactions

Published in

Molecules (Basel, Switzerland)
2020, volume: 25, number: 21, article number: 4979
Publisher: MDPI

Authors' information

Giampa, Marco
Norwegian University of Science and Technology (NTNU)
Swedish University of Agricultural Sciences, Department of Forest Genetics and Plant Physiology

UKÄ Subject classification

Biochemistry and Molecular Biology

Publication Identifiers


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