Enterohemorrhagic Escherichia coli senses low biotin status in the large intestine for colonization and infection.
Enterohemorrhagic Escherichia coli senses low biotin status in the large intestine for colonization and infection.
复制标题
肠出血性大肠杆菌感知大肠中的低生物素状态以进行定植和感染
DOI:
10.1038/ncomms7592
复制
发表时间:
2015-03-20
影响因子:
16.6
通讯作者:
Wang, Lei
中科院分区:
文献类型:
--
作者:
Yang, Bin;Feng, Lu;Wang, Fang;Wang, Lei
Enterohemorrhagic Escherichia coli (EHEC) is an important foodborne pathogen that infects humans by colonizing the large intestine. Here we identify a virulence-regulating pathway in which the biotin protein ligase BirA signals to the global regulator Fur, which in turn activates LEE (locus of enterocyte effacement) genes to promote EHEC adherence in the low-biotin large intestine. LEE genes are repressed in the high-biotin small intestine, thus preventing adherence and ensuring selective colonization of the large intestine. The presence of this pathway in all nine EHEC serotypes tested indicates that it is an important evolutionary strategy for EHEC. The pathway is incomplete in closely related small-intestinal enteropathogenic E. coli due to the lack of the Fur response to BirA. Mice fed with a biotin-rich diet show significantly reduced EHEC adherence, indicating that biotin might be useful to prevent EHEC infection in humans.
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DOI:
10.1073/pnas.120163297
发表时间:
2000-06-06
影响因子:
11.1
作者:
Datsenko, KA;Wanner, BL
通讯作者:
Wanner, BL
影响因子:
6.4
作者:
de Jesus, MC;Urban, AA;Foster, DEB
通讯作者:
Foster, DEB
影响因子:
2.8
作者:
Chong, Yuwen;Fitzhenry, Robert;Phillips, Alan D.
通讯作者:
Phillips, Alan D.
影响因子:
3.1
作者:
Fitzhenry, RJ;Reece, S;Phillips, AD
通讯作者:
Phillips, AD
影响因子:
3.7
作者:
Dötsch A;Eckweiler D;Schniederjans M;Zimmermann A;Jensen V;Scharfe M;Geffers R;Häussler S
通讯作者:
Häussler S