Purification of the RelB and RelE proteins of Escherichia coli:: RelE binds to RelB and to ribosomes

被引:47
作者
Galvani, C [1 ]
Terry, J [1 ]
Ishiguro, EE [1 ]
机构
[1] Univ Victoria, Dept Biochem & Microbiol, Victoria, BC V8W 3P6, Canada
关键词
D O I
10.1128/JB.183.8.2700-2703.2001
中图分类号
Q93 [微生物学];
学科分类号
071005 ; 100705 ;
摘要
The direct interaction of the Escherichia coli cytotoxin RelE,vith its specific antidote, RelB, was demonstrated in two ways: (i) copurification of the two proteins and (ii) a positive yeast two-hybrid assay involving the relB and relE genes. In addition, the purified RelE protein exhibited ribosome-binding activity in an in vitro assay, supporting previous observations suggesting that it is an inhibitor of translation.
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页码:2700 / 2703
页数:4
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