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- W2106048103 abstract "ABSTRACT Mycobacterium tuberculosis has evolved to persist in host macrophages, where it faces a nutrient-poor environment and is exposed to oxidative and nitrosative stress. To defend itself against oxidative/nitrosative stress, M. tuberculosis expresses an NADH-dependent peroxidase and peroxynitrite reductase that is encoded by ahpC , ahpD , lpd , and dlaT . In addition to its central role in the peroxynitrite reductase complex, dlaT (Rv2215) also encodes the E2 component of pyruvate dehydrogenase. Here we demonstrate that inactivation of dlaT in the chromosome of H37Rv resulted in a mutant (H37Rv ΔdlaT ) that displayed phenotypes associated with DlaT's role in metabolism and in defense against nitrosative stress. The H37Rv ΔdlaT strain showed retarded growth in vitro and was highly susceptible to killing by acidified sodium nitrite. Mouse macrophages readily killed intracellular H37Rv ΔdlaT organisms, and in mice dlaT was required for full virulence." @default.
- W2106048103 created "2016-06-24" @default.
- W2106048103 creator A5023886894 @default.
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- W2106048103 date "2006-01-01" @default.
- W2106048103 modified "2023-09-23" @default.
- W2106048103 title "Dihydrolipoamide Acyltransferase Is Critical for <i>Mycobacterium tuberculosis</i> Pathogenesis" @default.
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- W2106048103 doi "https://doi.org/10.1128/iai.74.1.56-63.2006" @default.
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