![重组单链人FVIII-Fc融合蛋白及其应用](/CN/2016/1/240/images/201611203557.jpg)
基本信息:
- 专利标题: 重组单链人FVIII-Fc融合蛋白及其应用
- 专利标题(英):Recombinant single stranded human FVIII-Fc fusion protein and application thereof
- 申请号:CN201611203557.0 申请日:2016-12-23
- 公开(公告)号:CN108239151A 公开(公告)日:2018-07-03
- 发明人: 朱文臣 , 朱成功 , 陈宪 , 王晓山 , 王淑亚 , 李亦清 , 刘成亮 , 李学勤 , 马亮 , 高洁 , 任子甲 , 朱鹿燕 , 刘宾 , 李相 , 郭舒涵 , 张志明 , 李强 , 孙乃超 , 苏鸿声
- 申请人: 北京辅仁瑞辉生物医药研究院有限公司 , 郑州远策生物制药有限公司 , 开封制药(集团)有限公司
- 申请人地址: 北京市大兴区经济技术开发区荣昌东街7号院5号楼5层
- 专利权人: 北京辅仁瑞辉生物医药研究院有限公司,郑州远策生物制药有限公司,开封制药(集团)有限公司
- 当前专利权人: 江苏晟斯生物制药有限公司
- 当前专利权人地址: 北京市大兴区经济技术开发区荣昌东街7号院5号楼5层
- 代理机构: 北京柏杉松知识产权代理事务所
- 代理人: 刘继富; 王春伟
- 主分类号: C07K19/00
- IPC分类号: C07K19/00 ; C12N15/62 ; A61K38/37 ; A61K47/68 ; A61P7/04
The invention provides a recombinant single stranded human FVIII-Fc fusion protein, wherein FVIII is human FVIII with deficiency of B protein domain; Fc comes from human IgG1 containing N297G mutation, two CH2-CH3 protein domains are connected into a single strand by flexible polypeptide, T366S, L368A AND Y407V mutations are introduced to CH3 close to the N end, and T366W mutation is introduced toCH3 close to the C end. The recombinant single stranded human FVIII-Fc fusion protein provided by the invention achieves coagulation activity equivalent to that of recombinant FVIII sold on the market, and the half-life period is prolonged. In addition, because point mutation is introduced into the Fc strand, the fusion protein provided by the invention cannot form a homodimer, the output of fusion protein is greatly increased, interest protein can be obtained by a conventional protein purification process, and the production cost is greatly reduced.
公开/授权文献:
- CN108239151B 重组单链人FVIII-Fc融合蛋白及其应用 公开/授权日:2020-07-03