A protein hybrid having cytotoxicity obtained by covalently bonding an immunoglobulin or its fragment, which is capable of binding selectively to an antigen possessed by a cell to be destroyed, to a protein, which is obtained from Momordica charantia and has an activity to terminate protein synthesis. This protein hybrid displays remarkable cytotoxicity against targel cells.
一种具有细胞毒性的蛋白质混合物,它是通过将一种能够选择性地与待破坏细胞所具有的抗原结合的免疫球蛋白或其片段与一种蛋白质共价键合而成,这种蛋白质取自桃
金娘,具有终止蛋白质合成的活性。这种蛋白质混合物对塔格尔细胞具有显著的细胞毒性。