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Anal Biochem. 1984 Oct;142(1):189-95.

Production and purification of murine monoclonal antibodies: aberrant elution from protein A-Sepharose 4B.


A rapid, one-step method for the efficient purification of murine monoclonal antibodies from tissue culture supernatants is described. This process is based on affinity chromatography on protein A-Sepharose columns. It was found that murine monoclonal antibodies raised against tick-borne encephalitis virus frequently eluted at more than one pH value and these pH values did not always correspond to those of antibodies of the same subclass from polyclonal mouse sera. The two populations of antibody molecule eluting at different pH values showed no variation in molecular weight, isoelectric profiles, specific enzyme-linked immunosorbent assay titer, or antibody subclass.

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