Protein photocrosslinking reveals dimer of dimers formation on MarR protein in Escherichia coli
Protein photocrosslinking reveals dimer of dimers formation on MarR protein in Escherichia coli
复制标题
蛋白质光交联揭示了大肠杆菌 MarR 蛋白上形成的二聚体
DOI:
10.1007/s11426-011-4437-1
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发表时间:
2012-02
期刊:
影响因子:
--
通讯作者:
Chen, Peng
中科院分区:
文献类型:
--
作者:
Chen Xing;Chen Xing;Hao ZiYang;Hao ZiYang;Chen, Peng;Chen, Peng
The multiple antibiotic resistance regulatory protein (MarR) binds to two promoter sites on the marO operator in Escherichia coli. Our study showed that more than one MarR dimer proteins bound to either of its two promoter sites (Site I and Site II), suggesting that MarR might form higher complexes than homodimers when bound to DNA inside E. coli cells. To further verify this hypothesis, we site-specifically incorporated a photocrosslinking probe at the interface between two MarR dimer proteins. Photolysis in living E. coli cells revealed a covalent linkage between the two interdimer subunits of MarR, suggesting that MarR forms dimer of dimers in vivo.
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影响因子:
16.6
作者:
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作者:
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DOI:
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发表时间:
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通讯作者:
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