发明名称 |
IMPROVED PURIFICATION OF COLLAGENASES FROM CLOSTRIDIUM HISTOLYTICUM LIQUID CULTURE |
摘要 |
The present invention provides a method for purifying Clostridium histolyticum collagenase type I and type II proteins from a complex mixture by subsequently performing a precipitation with ammonium sulfate, hydrophobic interaction chromatography, cation exchange chromatography, and anion chromatography. Conditions are provided which lead to a stabilized partially purified preparation even after the precipitation step. The method of the invention leads to a quick and efficient removal of other proteolytic activities. The preparations according to the invention provide exceptionally pure and intact collagenase type I and type II proteins which are enzymatically active. The invention also provides blends of the two isolated proteins. The invention further provides the use of the purified collagenase proteins or blends thereof for treating a tissue sample in vitro. |
申请公布号 |
CA2668118(C) |
申请公布日期 |
2016.09.13 |
申请号 |
CA20092668118 |
申请日期 |
2009.06.01 |
申请人 |
F. HOFFMANN-LA ROCHE AG |
发明人 |
ECKSTEIN, HELLMUT;FISCHER, MICHAELA;HOELKE, WERNER;LIEHRE, ANTJE;SUPPMANN, BERNHARD;THALHOFER, JOHANN-PETER |
分类号 |
C12N9/52;C07K1/14;C12N5/00;C12N9/48;C12Q1/00;G01N1/28 |
主分类号 |
C12N9/52 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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