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Comparison of the chromatographic properties of IgG1 and IgG2 antibody subclasses
Author(s) -
Ghose Sanchayita,
Ladwig Justin,
Allen Martin
Publication year - 2010
Publication title -
biotechnology and applied biochemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.468
H-Index - 70
eISSN - 1470-8744
pISSN - 0885-4513
DOI - 10.1042/ba20100205
Subject(s) - subclass , antibody , chromatography , chemistry , affinity chromatography , hydrophilic interaction chromatography , high performance liquid chromatography , biology , biochemistry , immunology , enzyme
All therapeutic antibodies that are currently approved or under development are IgGs, with IgG1 and IgG2 being the most prevalent subclasses. The present study investigates the effect of antibody subclass on its chromatographic properties. To this end, two sets of antibodies with identical variable domains and differing subclasses (IgG1 and IgG2) were compared by using purification methods that are most commonly used in industrial antibody manufacturing processes. Each antibody was examined using Protein A chromatography, cation‐exchange chromatography, hydrophobic interaction chromatography and salt‐induced precipitation studies. The results of these experiments show that the variable region of an antibody has a greater influence on its chromatographic behaviour than antibody subclass.