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Role of dihydrolipoamide dehydrogenase in regulation of raffinose transport in Streptococcus pneumoniae.
Streptococcus pneumoniae strains lacking the enzyme dihydrolipoamide dehydrogenase (DLDH) show markedly reduced ability to grow on raffinose and stachyose as sole carbon sources. Import of theseExpand
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Expression of a uniquely regulated extracellular polysaccharide confers a large-capsule phenotype to Bacteroides fragilis.
Bacteroides fragilis synthesizes eight distinct capsular polysaccharides, more than any described bacterium outside the order Bacteroidales. Here, we show that this organism also produces aExpand
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Bacteroides fragilis synthesizes a DNA invertase affecting both a local and a distant region.
The activity of a fourth conserved tyrosine site-specific recombinase (Tsr) of Bacteroides fragilis was characterized. Its gene, tsr19, is adjacent to mpi, encoding the global DNA invertaseExpand
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Pneumococcal Genetic Transformation During Colonization and Biofilm Formation
Transformation of genetic material between bacteria was first observed in the 1920s using Streptococcus pneumoniae as a model organism. Since then, our understanding of the mechanisms involved inExpand
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