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SYMMETRIC BISPECIFIC IgG4 ANTIBODY WITH IMPROVED STABILITY
SYMMETRIC BISPECIFIC IgG4 ANTIBODY WITH IMPROVED STABILITY
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机译:稳定性提高的对称双特异性IgG4抗体
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摘要
The present invention relates to a symmetric bispecific antibody of the class IgG4 comprising two heavy chains which each comprise a variable domain, CH1 domain and a hinge region, wherein in each heavy chain: the cysteine in the CH1 domain which forms an inter-chain disulphide bond with a cysteine in a light chain is substituted with another amino acid; and optionally one or more of the amino acids positioned in the upper hinge region is substituted with cysteine, wherein the constant region sequence of each heavy chain is similar or identical and the variable region in each heavy chain is different, formulations comprising the same, the use of each of the above in treatment and processes for preparing said antibodies and formulations.
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机译:本发明涉及IgG4类对称双特异性抗体,其包含两条重链,每条重链均包含可变结构域,C H Sub> 1结构域和铰链区,其中在每条重链中:在轻链中与半胱氨酸形成链间二硫键的C H Sub> 1结构域被另一个氨基酸取代;且任选地,位于上部铰链区中的一个或多个氨基酸被半胱氨酸取代,其中每个重链的恒定区序列是相似或相同的,并且每个重链中的可变区是不同的,上述各方面在制备所述抗体和制剂的治疗和方法中的用途。
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