PROTEIN CHROMATOGRAPHY IN NEAT ORGANIC-SOLVENTS

被引：11

作者：

CHANG, N ^{[1
]}

KLIBANOV, AM ^{[1
]}

机构：

[1] MIT,DEPT CHEM,CAMBRIDGE,MA 02139

来源：

BIOTECHNOLOGY AND BIOENGINEERING | 1992年 / 39卷 / 05期

关键词：

PROTEIN SEPARATIONS; FORMAMIDE; ETHYLENE GLYCOL; DOWNSTREAM PROTEIN PROCESSING; CHROMATOGRAPHY; ION-EXCHANGE RESINS;

D O I：

10.1002/bit.260390513

中图分类号：

Q81 [生物工程学（生物技术）]; Q93 [微生物学];

学科分类号：

071005 ; 0836 ; 090102 ; 100705 ;

摘要：

Pure formamide and ethylene glycol are used instead of water as processing media for protein chromatography. A number of common proteins are freely soluble in these solvents and most do not undergo irreversible inactivation in them. Batch adsorption studies reveal that proteins readily adsorb to various ion-exchangers in formamide and ethylene glycol and subsequently can be completely desorbed by adding inorganic salts (LiCl and NH4NO3) to these solvents. The idea of protein separations in formamide and ethylene glycol is illustrated by column chromatography and preparative separation of mixtures of (i) oxidized A and B chains of insulin and (ii) lysozyme and ribonuclease on the anion-exchanger triethylaminoethylcellulose and the cation-exchanger phosphocellulose, respectively.

引用

收藏

页码：575 / 578

页数：4

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