发明名称 |
PROCESS FOR SEPARATING ALPHA1-PROTEINASE INHIBITOR FROM COHN FRACTION IV1 AND IV4 PASTE |
摘要 |
The present invention is directed to a process for purifying alpha 1-proteinase inhibitor. The process comprises providing an impure protein fraction which comprises alpha 1-proteinase inhibitor. The impure protein fraction is precipitated with a precipitant comprising PEG. The supernatant from the PEG precipitation, which comprises alpha 1-proteinase inhibitor, is collected and applied to an anion-exchange medium. A fraction comprising alpha 1-proteinase inhibitor is recovered from the anion-exchange medium and applied to a metal chelate medium. A fraction comprising alpha 1-proteinase inhibitor is then recovered from the metal chelate medium. Alpha1-proteinase inhibitor purified by the process has a specific activity greater than 0.6 units/mg.
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申请公布号 |
WO9535306(A1) |
申请公布日期 |
1995.12.28 |
申请号 |
WO1995US07616 |
申请日期 |
1995.06.16 |
申请人 |
ALPHA THERAPEUTIC CORPORATION |
发明人 |
TANIGUCHI, TOM;ROLF, JOHN, M.;BHATTACHARYA, PRABIR;UEMURA, YAHIRO |
分类号 |
C07K14/81;(IPC1-7):C07K1/16;C07K1/18;C07K1/30 |
主分类号 |
C07K14/81 |
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