Large-scale bacterial fermentation and isolation of scFv multimers using a heat-inducible bacterial expression vector

被引：22

作者：

Bayly, AM ^{[1
]}

Kortt, AA ^{[1
]}

Hudson, PJ ^{[1
]}

Power, BE ^{[1
]}

机构：

[1] CSIRO, Parkville, Vic 3052, Australia

来源：

JOURNAL OF IMMUNOLOGICAL METHODS | 2002年 / 262卷 / 1-2期

关键词：

bacterial expression; large-scale fermentation; heat-induction vector; single-chain antibody;

D O I：

10.1016/S0022-1759(02)00021-2

中图分类号：

Q5 [生物化学];

学科分类号：

071010 ; 081704 ;

摘要：

This protocol describes optimised large-scale bacterial fermentation conditions for recombinant single-chain Fv molecule (scFv) monomers and multimers (diabodies and triabodies). The heat-inducible bacterial secretion vector, pPOW3, utilising the temperature-regulated tandem lambda promoters is particularly suited to the large-scale fermentation of single-chain antibodies, providing low-cost recombinant protein synthesis. The protein expressed by this vector is secreted into the periplasm where it is found as both the soluble and insoluble protein that is associated with the cell membranes. A protein fractionation method for the rapid extraction and affinity purification of the soluble protein fraction and the urea solubilization and refolding of the insoluble protein fraction expressed from single-chain antibody (Ab) fragment gene constructs is described. This method is simple to perform and utilises inexpensive reagents to provide cost-effective protein synthesis. (C) 2002 Elsevier Science B.V. All rights reserved.

引用

页码：217 / 227

页数：11

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