Immunoaffinity chromatography utilizing monoclonal antibodies

Autor: Sheldon M. Schuster, N. E. Pfeiffer, Dwane E. Wylie
Rok vydání: 1987
Předmět:
Zdroj: Journal of Immunological Methods. 97:1-9
ISSN: 0022-1759
DOI: 10.1016/0022-1759(87)90098-6
Popis: Differences in antigen-binding capacity of a monoclonal antibody coupled to Sepharose under varying conditions were explored. The extent of cyanogen bromide activation, and the pH of the coupling reaction had a profound effect upon the rate of antibody coupling, but only small differences in antigen-binding capacity were observed if the antibody coupling reaction was terminated when 80–90% of the antibody was covalently coupled to Sepharose. However, if antibody was incubated with activated resin until 100% coupling was attained, the antigen-binding capacity of the resulting immunoadsorbent decreased significantly. Monoclonal antibody coupled to Sepharose via an N-hydroxysuccinimide ester linkage and approximately half the antigen-binding capacity of antibody coupled by CNBr activation. Concentrations of monoclonal antibodies as high as 13 mg/ml of packed resin could be used without noticeable steric hindrance.
Databáze: OpenAIRE