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A melibiose transporter and an operon containing its gene in Enterobacter cloacae
1Department of Microbiology, Faculty of Pharmaceutical Sciences, Okayama University, Tsushima, Japan.
Journal of Bacteriology
|July 1, 1997
Abstract:
We detected inducible melibiose transport activity in cells of Enterobacter cloacae IID977. H+, but not Na+, was found to be the coupling cation for this transporter. We cloned and sequenced the gene encoding the melibiose transporter. A homology search of a protein sequence database revealed that this melibiose transporter has high sequence similarity with the lactose transporter (LacY) and the raffinose transporter (RafB) and has some similarity with the melibiose transporter (MelB) of Escherichia coli.