发明名称 |
MATERIALS AND METHODS FOR REMOVING ENDOTOXINS FROM PROTEIN PREPARATIONS |
摘要 |
A method includes (i) adding allantoin in a supersaturating amount to a protein preparation including a desired protein and at least one endotoxin as a contaminant, (ii) removing solids after the adding step to provide a sample for further purification by void exclusion chromatography on a packed particle bed of electropositive particles in a column, the packed particle bed having an interparticle volume, (iii) applying a sample volume to the packed particle bed, wherein the electropositive particles support void exclusion chromatography, and wherein the sample volume is not greater than the interparticle volume, and (iv) eluting a purified sample including the desired protein and a reduced amount of the endotoxin. The method is optionally carried out with only the allantoin treatment or only the void exclusion chromatography. |
申请公布号 |
EP2958931(A1) |
申请公布日期 |
2015.12.30 |
申请号 |
EP20140754782 |
申请日期 |
2014.02.20 |
申请人 |
AGENCY FOR SCIENCE, TECHNOLOGY AND RESEARCH |
发明人 |
GAGNON, PETER STANLEY;VAGENENDE, VINCENT |
分类号 |
C07K1/14;B01D15/08;B01D15/34;B01D15/36;C07K1/16;C07K1/18;C07K1/36 |
主分类号 |
C07K1/14 |
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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