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Mahapatra, Sujata; Polimeni, Marco; Gentiluomo, Lorenzo; Roessner, Dierk; Frieß, Wolfgang; Peters, Günther H. J; Streicher, Werner W; Lund, Mikael; Harris, Pernille
Molecular pharmaceutics, 02/2022, Letnik: 19, Številka: 2Journal Article
Using light scattering (LS), small-angle X-ray scattering (SAXS), and coarse-grained Monte Carlo (MC) simulations, we studied the self-interactions of two monoclonal antibodies (mAbs), PPI03 and PPI13. With LS measurements, we obtained the osmotic second virial coefficient, B 22, and the molecular weight, M w, of the two mAbs, while with SAXS measurements, we studied the mAbs’ self-interaction behavior in the high protein concentration regime up to 125 g/L. Through SAXS-derived coarse-grained representations of the mAbs, we performed MC simulations with either a one-protein or a two-protein model to predict B 22. By comparing simulation and experimental results, we validated our models and obtained insights into the mAbs’ self-interaction properties, highlighting the role of both ion binding and charged patches on the mAb surfaces. Our models provide useful information about mAbs’ self-interaction properties and can assist the screening of conditions driving to colloidal stability.
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Leto | Faktor vpliva | Izdaja | Kategorija | Razvrstitev | ||||
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JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
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in: SICRIS
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