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Preparative SEC profiles of protein samples from PER.C6 stable pools expressing IgA1-1g5 (A), IgA21-2g4 (B), IgA21-2g5 (C) and IgA22-4g5 (D) and from HEK293F cultures IgA22-4g2 (E) and IgA22Δ18-5g2 (F) after clarification and KappaSelect purification. HMW = high-molecular weight fraction; LC = light chain.
