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Orthogonal Protein Purification Facilitated by a Small Bispecific Affinity Tag
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Molecular engineering strategies and methods for the expression and purification of IgG1-based bispecific bivalent

N Dimasi1, R Fleming1, H Wu1

  • 1Antibody Discovery and Protein Engineering, MedImmune, Gaithersburg, MD, USA.

Methods (San Diego, Calif.)
|August 14, 2018
PubMed

In recent years, bispecific antibodies (BisAbs) have emerged as novel pharmaceutical candidates owing to their ability to engage two disease mediators simultaneously, thus providing a possible alternative therapeutic approach in complex diseases such as cancer and inflammation. Here we provide an overview of the molecular design, recombinant expression in mammalian cells and purification of BisAbs based on full-length IgG-scFv formats. Practical considerations and strategies to optimize transient expression and purification are also discussed.

Keywords:
Affinity purificationAntibody scFv fusionBispecific antibodies engineeringBispecific antibody expressionBispecific bivalent antibodiesScFv

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