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    • 4. 发明申请
    • REAGENT FOR AGGLUTINATION ASSAYS
    • 试剂测定
    • WO1993024630A1
    • 1993-12-09
    • PCT/AU1993000228
    • 1993-05-19
    • AGEN LIMITEDLILLEY, Glenn, GeorgeHUDSON, Peter, JohnHILLYARD, Carmel, Judith
    • AGEN LIMITED
    • C12N15/13
    • C07K14/005C07K14/47C07K2319/00C12N15/62C12N2740/16122G01N33/531G01N33/6857
    • The invention provides a bifunctional recombinant protein comprising a particle-binding antibody or antibody fragment (PBM), and an analyte-binding moiety or molecule (ABM). Preferably, the particle-binding antibody or antibody fragment is an erythrocyte-binding antibody or antibody fragment (EBM), and/or the ABM is selected from the group consisting of an antigenic peptide from an immunodominant region of an env protein of HIV-1 or HIV-2, a gag protein of HIV-1 or HIV-2, and an immunodominant region of the surface antigen of Hepatitis B. Alternatively, the ABM is a single chain Fv region of an antibody directed against an antigen selected from the group consisting of Hepatitis B surface antigen, D-dimer and canine heartworm antigen. In a particularly preferred embodiment, the EBM is a single chain Fv region of an anti-erythrocyte antibody, such as an anti-glycophorin antibody. The protein of the invention is particularly suitable for use in agglutination immunoassays. Methods for producing the protein of the invention, DNA sequences, and assay methods and reagent kits therefor are also provided.
    • 本发明提供了包含颗粒结合抗体或抗体片段(PBM)和分析物结合部分或分子(ABM)的双功能重组蛋白。 优选地,所述颗粒结合抗体或抗体片段是红细胞结合抗体或抗体片段(EBM),和/或所述ABM选自HIV-1的env蛋白的免疫显性区域的抗原肽 或HIV-2,HIV-1或HIV-2的gag蛋白,​​以及乙型肝炎表面抗原的免疫显性区。或者,ABM是针对选自组中的抗原的抗体的单链Fv区 由乙型肝炎表面抗原,D-二聚体和犬心丝虫抗原组成。 在特别优选的实施方案中,EBM是抗红细胞抗体的单链Fv区,例如抗血型糖蛋白抗体。 本发明的蛋白质特别适用于凝集免疫测定。 还提供了制备本发明蛋白质的方法,DNA序列和测定方法及其试剂盒。