Evidence of a glucose proton motive force-dependent permease and a fructose phosphoenolpyruvate:phosphotransferase transport system in Lactobacillus reuteri CRL 1098.
Sugar uptake and phosphoenolpyruvate phosphorylation assays have shown that the heterofermentative strain Lactobacillus reuteri CRL 1098, of likely probiotic value, can transport D-fructose through an inducible fructose-specific phosphotransferase system (K(m) 95 microM) and D-glucose mainly through a proton motive force-driven permease. These data open new perspectives for metabolic and regulatory studies in this bacterium.
Taranto
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MP
Centro de Referencia para Lactobacilos (CERELA), CONICET, Chacabuco 145, San Miguel de Tucumán, 4000, Tucumán, Argentina.
Font de Valdez
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Perez-Martinez
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D001692:Biological Transport; D005632:Fructose / Q000378:metabolism; D005947:Glucose / Q000378:metabolism*; D007778:Lactobacillus / Q000201:enzymology* / Q000254:growth & development; D026901:Membrane Transport Proteins / Q000378:metabolism*; D010731:Phosphoenolpyruvate Sugar Phosphotransferase System / Q000378:metabolism*; D018892:Proton-Motive Force
D026901:Membrane Transport Proteins; D005632:Fructose; D010731:Phosphoenolpyruvate Sugar Phosphotransferase System; D005947:Glucose