Identification of the ahp operon of Salmonella typhimurium as a macrophage-induced locus.

AUTOR(ES)

Francis, K P

RESUMO

Previously, we tagged a macrophage-induced Salmonella typhimurium locus with Mudlux (K. P. Francis and M. P. Gallagher, Infect. Immun. 61:640-649, 1993). The insertion lies within the OxyR-regulated ahpC locus and conveys alkyl peroxide sensitivity. Plasmid-encoded ahp reverses sensitivity but reduces luminescence. This suggests that OxyR is titrated by the multicopy ahp promoter.

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