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    • 8. 发明申请
    • TARGETED MULTIFUNCTIONAL PROTEINS
    • 目标多功能蛋白
    • WO1988009344A1
    • 1988-12-01
    • PCT/US1988001737
    • 1988-05-19
    • CREATIVE BIOMOLECULES, INC.HUSTON, James, S.OPPERMANN, Hermann
    • CREATIVE BIOMOLECULES, INC.
    • C07K13/00
    • C07K16/18C07K16/00C07K16/464C07K16/468C07K2317/24C07K2317/622C07K2317/624C07K2319/00C07K2319/02C07K2319/705
    • Disclosed are a family of synthetic proteins having binding affinity for a preselected antigen, and multifunctional proteins having such affinity. The proteins are characterized by one or more sequences of amino acids constituting a region which behaves as a biosynthetic antibody binding site (BABS). The sites comprise VH-VL or VL-VH-like single chains wherein the VH and VL-like sequences are attached by a polypeptide linker, or individual VH or VL-like domains. The binding domains comprise linked CDR and FR regions, which may be derived from separate immunoglobulins. The proteins may also include other polypeptide sequences which function, e.g., as an enzyme, toxin, binding site, or site for attachment to an immobilization media or radioactive atom. Methods are disclosed for producing the proteins, for designing BABS having any specificity that can be elicited by in vivo generation of antibody, for producing analogs thereof, and for producing multifunctional synthetic proteins which are self-targeted by virtue of their binding site region.
    • 公开了对预选抗原具有结合亲和力的合成蛋白质家族,以及具有这种亲和力的多功能蛋白质。 蛋白质的特征在于构成表现为生物合成抗体结合位点(BABS)的区域的一个或多个氨基酸序列。 所述位点包含VH-VL或VL-VH样单链,其中VH和VL样序列通过多肽接头或单独的VH或VL样结构域连接。 结合域包含连接的CDR和FR区,其可以衍生自单独的免疫球蛋白。 蛋白质还可以包括其它多肽序列,其功能例如作为酶,毒素,结合位点或用于附着于固定化介质或放射性原子的位点。 公开了用于制备蛋白质的方法,用于设计具有可通过体内产生抗体引起的任何特异性的BABS,用于产生其类似物,以及用于生产通过其结合位点区域自身靶向的多功能合成蛋白质。