High-level production of soluble tumor necrosis factor-related apoptosis-inducing ligand (Apo2L/TRAIL) in high-density cultivation of recombinant Escherichia coli using a combined feeding strategy

被引：34
|
作者：
Shen, YL [1 ]
Zhang, Y [1 ]
Sun, AY [1 ]
Xia, XX [1 ]
Wei, DZ [1 ]
Yang, SL [1 ]
机构：
[1] E China Univ Sci & Technol, State Key Lab Bioreactor Engn, Shanghai 200237, Peoples R China
来源：
BIOTECHNOLOGY LETTERS | 2004年 / 26卷 / 12期
基金：
国家高技术研究发展计划(863计划);
关键词：
combined feeding strategy; Escherichia coli; fed-batch; high-cell-density cultivation; TRAIL;
D O I：
10.1023/B:BILE.0000030043.84226.ac
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：
Recombinant Escherichia coli strain C600/pBV-TRAIL (encoding for 114-281 amino acids of TRAIL's soluble fragment) produced a recombinant human tumor necrosis factor-related apoptosis-inducing ligand (Apo2L/TRAIL). Using a combined strategy of exponential feeding and pH-stat feeding, high concentrations of biomass (65 g dry wt l(-1)) and active soluble TRAIL (1.4 g l(-1)) were obtained within 30 h. The accumulation of acetate, which usually occurs during the process of high-density culture of Escherichia coli and especially in the induction stage of protein synthesis, was avoided.
引用
收藏
页码：981 / 984
页数：4
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