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The CD2 antigen was isolated and purified by affinity chromatography with an OKT11-like monoclonal antibody coupled to Sepharose CL-4B from human serum and the supernatants of tonsil cells or HPB-ALL cells which had been warmed to 45℃ for 1h. The biochemical characteristics of the CD2 antigen were studied. (ⅰ)
The CD2 antigen was isolated and purified by affinity chromatography with an OKT11-like monoclonal antibody coupled to Sepharose CL-4B from human serum and the supernatants of tonsil cells or HPB-ALL cells which had been warmed to 45 ° C for 1 h. The biochemical characteristics of the CD2 antigen were studied. (i)