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发明授权
CN105985435B 全人源HER2抗体的突变抗体及其编码基因和应用 有权

全人源HER2抗体的突变抗体及其编码基因和应用
摘要：
本发明提供了全人源HER2抗体GB235‑019的突变抗体，其中所述突变抗体的重链可变区的氨基酸序列和轻链可变区的氨基酸序列分别为：SEQ ID NO:10，SEQ ID NO:2；SEQ ID NO:11，SEQ ID NO:2；或SEQ ID NO:12，SEQ ID NO:2。所述突变抗体具有与GB235‑019抗体相似的人HER2抗原特异性的结合能力，并且也可以与其他HER2阳性肿瘤治疗剂联合用于治疗HER2阳性肿瘤、弱阳性肿瘤或阴性肿瘤。
摘要（英）：

The present invention provides a mutated antibody of the fully humanized HER2 antibody GB235-019, wherein the amino acid sequence of the heavy chain variable region and the amino acid sequence of the light chain variable region of the mutated antibody are respectively SEQ ID NO: 10, SEQ ID NO: 2; SEQ ID NO: 1 1, SEQ ID NO: 2; or SEQ ID NO:12, SEQ ID NO:2. The mutated antibody has the ability to specifically bind to human HER2 antigen, similar to the GB235-019 antibody. They can also be used in combination with additional HER2 positive tumor therapeutic agents for treating HER2 positive tumor, weakly positive tumor or negative tumor.

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