Mass spectrometric insights into protein aggregation

Area of Science:

• Biophysics
• Biochemistry
• Analytical Chemistry

Background:

• Protein aggregation is a key factor in the protein energy landscape and implicated in numerous human diseases.
• Understanding protein misfolding and aggregation is critical for biopharmaceutical research and development.
• Traditional structural biology methods face limitations in studying dynamic aggregation processes.

Approach:

• This review focuses on mass spectrometry (MS)-based approaches for studying protein aggregation.
• MS offers high sensitivity, rapid analysis, and specificity for complex biological mixtures.
• The review highlights MS techniques applicable to protein conformation and aggregation pathway analysis.

Key Points:

• Mass spectrometry provides essential biophysical descriptors of protein conformation.
• MS enables the characterization of soluble oligomers and insoluble protein aggregates.
• The technology is particularly valuable where traditional methods are insufficient.

Conclusions:

• Mass spectrometry is a powerful tool for elucidating protein aggregation mechanisms.
• Selected MS-based approaches offer unique structural and mechanistic insights.
• This technology advances the study of protein misfolding in disease and drug discovery.