Small-angle X-ray scattering of engineered antigen-binding fragments: the case of glycosylated Fab from the Mannitou IgM antibody
2025

Study of Mannitou Fab Antibody Fragments

publication 10 minutes Evidence: moderate

Author Information

Author(s): Shubham Semwal, Karamolegkou Maria, Flament Stéphanie, Raouraoua Nessim, Verstraete Kenneth, Thureau Aurélien, Wien Frank, Bray Fabrice, Savvides Savvas N., Bouckaert Julie

Primary Institution: Université de Lille

Hypothesis

The study investigates the structural and functional characteristics of the Mannitou Fab antibody fragment, particularly focusing on the role of glycosylation.

Conclusion

The findings highlight the importance of glycosylation in stabilizing Mannitou Fab and preventing misfolding, which is crucial for developing effective therapeutic antibodies.

Supporting Evidence

  • The study provides insights into the structural characterization of Mannitou Fab using advanced biophysical techniques.
  • Results indicate that glycosylation plays a critical role in the stability and functionality of the antibody fragment.
  • SEC-MALS and SEC-SAXS analyses confirmed the presence of monomeric and dimeric forms of Mannitou Fab.
  • Mass spectrometry revealed specific glycosylation patterns that influence the antibody's properties.
  • Findings suggest that misfolding may occur during the production of recombinant Fabs, affecting their therapeutic potential.

Takeaway

This study looks at a special type of antibody called Mannitou Fab and how adding sugar molecules to it helps it work better and stay stable.

Methodology

The study used biochemical and biophysical techniques, including size-exclusion chromatography, multi-angle light scattering, and small-angle X-ray scattering, to analyze the Mannitou Fab.

Limitations

The study does not address the long-term stability of the Mannitou Fab or its performance in vivo.

Digital Object Identifier (DOI)

10.1107/S2053230X24012159

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