| Literature DB >> 3884586 |
S Shiota, Y Yamane, M Futai, T Tsuchiya.
Abstract
Escherichia coli K-12 strains in the absence of the lactose carrier grew on the disaccharide melibiose as the sole source of carbon. The presence of 0.1 mM Li+ in the medium strongly inhibited growth of such cells, and Li+-resistant mutants appeared after several days of incubation. These mutants showed altered cation coupling to melibiose transport via the melibiose carrier. Cotransport between H+ and melibiose was lost in the mutants, although Na+-melibiose cotransport was retained. We observed no Li+-melibiose cotransport. Therefore, these mutants represent a new type of cation-coupling mutants of the melibiose carrier.Entities:
Mesh:
Substances:
Year: 1985 PMID: 3884586 PMCID: PMC218961 DOI: 10.1128/jb.162.1.106-109.1985
Source DB: PubMed Journal: J Bacteriol ISSN: 0021-9193 Impact factor: 3.490