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Variations in the csgD promoter of Escherichia coli O157:H7 associated with increased virulence in mice and increased invasion of HEp-2 cells.

作者信息

Uhlich Gaylen A, Keen James E, Elder Robert O

机构信息

Roman L. Hruska U.S. Meat Animal Research Center, Agricultural Research Service, U.S. Department of Agriculture, Clay Center, Nebraska 68933, USA.

出版信息

Infect Immun. 2002 Jan;70(1):395-9. doi: 10.1128/IAI.70.1.395-399.2002.

Abstract

Promoter alterations in the csgD gene of Escherichia coli O157:H7 strains ATCC 43894 and ATCC 43895 are associated with variations in curli expression and the ability to bind Congo red dye. Red variants of each strain were more invasive for cultured HEp-2 cells than were white variants. An ATCC 43895 red variant was more virulent than a white variant in a mouse model. However, there were no differences in Shiga toxin production between red and white variants.

摘要

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本文引用的文献

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Mutations in the csgD promoter associated with variations in curli expression in certain strains of Escherichia coli O157:H7.
Appl Environ Microbiol. 2001 May;67(5):2367-70. doi: 10.1128/AEM.67.5.2367-2370.2001.
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