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Effect of inactivation of the HtrA-like serine protease DegQ on the virulence of Salmonella enterica serovar Typhimurium in mice.


ABSTRACT: DegQ is a serine protease that is highly homologous to HtrA, an important virulence determinant of Salmonella enterica serovar Typhimurium. We examined if DegQ is involved in serovar Typhimurium pathogenesis. A serovar Typhimurium degQ mutant was as virulent as the wild-type strain in mice. However, a serovar Typhimurium htrA degQ mutant survived less well in murine organs, particularly in the liver, than a serovar Typhimurium htrA mutant. DegQ is not essential for serovar Typhimurium pathogenesis but may play a small role during salmonella growth at systemic sites.

SUBMITTER: Farn J 

PROVIDER: S-EPMC529144 | biostudies-other | 2004 Dec

REPOSITORIES: biostudies-other

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