The recombinant protein, in the culture supernatant, designated C2-45 (IgG1), was purified by affinity chromatography, and characterized for the CEA binding specificity and the biological activity of CDC and ADCC.

• 应用免疫亲和层析法,纯化培养上清中表达的重组蛋白C245(IgG1),并鉴定其与CEA结合的能力和CH的生物学功能CDC及ADCC。