发明名称 |
Protein purification |
摘要 |
The present invention relates to a process for the purification of an antibody fragment from a periplasmic cell extract comprising a first cation exchange chromatography step and a second anion exchange chromatography step. |
申请公布号 |
US9309280(B2) |
申请公布日期 |
2016.04.12 |
申请号 |
US201113812654 |
申请日期 |
2011.07.26 |
申请人 |
UCB PHARMA, S.A. |
发明人 |
Spitali Mariangela;Symmons Jonathan;Whitcombe Richard;Pearce-Higgins Mark Robert |
分类号 |
C07K1/18;C07K1/36;C07K16/24;C07K19/00 |
主分类号 |
C07K1/18 |
代理机构 |
Saliwanchik, Lloyd & Eisenschenk |
代理人 |
Saliwanchik, Lloyd & Eisenschenk |
主权项 |
1. A process for the purification of an antibody fragment from periplasmic cell extract comprising:
a) a first chromatography step to capture the antibody fragment by subjecting a mixture comprising the antibody fragment and bacterial host cell protein, wherein bacterial host cell protein is present at 200 μg/ml-10,000 μg/ml and wherein the antibody fragment is at a concentration of at least 1.5 g/L in said mixture, to cation exchange chromatography and subsequent elution, thereby producing a first eluate containing the antibody fragment; and b) a second chromatography step wherein the first eluate is subjected to anion exchange chromatography to capture impurities and produce a flow through containing the antibody fragment. |
地址 |
Brussels BE |