N. Okazaki et al., A MELIBIOSE TRANSPORTER AND AN OPERON CONTAINING ITS GENE IN ENTEROBACTER-CLOACAE, Journal of bacteriology, 179(13), 1997, pp. 4443-4445
We detected inducible melibiose transport activity in cells of Enterob
acter cloacae IID977. H+, but not Na+, was found to be the coupling ca
tion for this transporter. We cloned and sequenced the gene encoding t
he melibiose transporter. A homology search of a protein sequence data
base revealed that this melibiose transporter has high sequence simila
rity with the lactose transporter (LacY) and the raffinose transporter
(RafB) and has some similarity with the melibiose transporter (MelB)
of Escherichia coli.