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Escherichia coli can use the nonreducing disaccharide trehalose as a sole source of carbon and energy. Trehalose transport into the cell is mediated via the phosphotransferase system, and a mutant(More)
LamB, an outer membrane protein of Escherichia coli, is a component of the maltose-maltooligosaccharide transport system. We used p-nitrophenyl-alpha-D-maltohexaoside, a chromogenic analog of(More)
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