Fig. 1From: Immunotoxins for the Treatment of B-Cell Lymphomas Structure of immunotoxins used in the treatment of lymphomas Antibodies HD37, B43, and B4 are murine monoclonals anti-CD 19. Antibody RFB4 is a murine monoclonal anti-CD22. Abbreviations: A, ricin A chain; Ab, antibody; B, ricin B chain; CHO, carbohydrate moiety; gp, glycopeptide derived from fetuin; 2-IT, 2-imminothiolane; S-S, disulfide bond; X, cross-linking bridge.Back to article page