A functional cra gene is required for Salmonella enterica serovar typhimurium virulence in BALB/c mice.

ABSTRACT: A minitransposon mutant of Salmonella enterica serovar Typhimurium SR-11, SR-11 Fad(-), is unable to utilize gluconeogenic substrates as carbon sources and is avirulent and immunogenic when administered perorally to BALB/c mice (M. J. Utley et al., FEMS Microbiol. Lett., 163:129-134, 1998). Here, evidence is presented that the mutation in SR-11 Fad(-) that renders the strain avirulent is in the cra gene, which encodes the Cra protein, a regulator of central carbon metabolism.

SUBMITTER: Allen JH 

PROVIDER: S-EPMC97677 | biostudies-literature | 2000 Jun

REPOSITORIES: biostudies-literature