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Neisseria are obligate human pathogens causing bacterial meningitis, septicaemia and gonorrhoea. Neisseria require iron for survival and can extract it directly from human transferrin for transport across the outer membrane. The transport system consists of TbpA, an integral outer membrane protein, and TbpB, a co-receptor attached to the cell surface; both(More)
Human genes homologous to the v-erbA oncogene of avian erythroblastosis virus have been mapped to at least two human chromosomes. Recently, the ERBA2 gene was shown to encode a thyroid hormone receptor and localized to chromosome 3 by using flow-sorted chromosomes. We now demonstrate that this gene is located at 3p22----3p24.1, using both somatic cell(More)
Nuclear localization of the rat glucocorticosteroid receptor (rGR) transiently expressed in COS-7 cells appears to be mediated by two nuclear localization signals, NL1 and NL2, in a hormone-dependent mechanism. We investigated the intracellular distribution of the human GR (hGR) expressed in COS-7 cells, by a different immunohistochemical technique(More)
In Pseudomonas aeruginosa arginine can be degraded by the arginine "dihydrolase" system, consisting of arginine deiminase, catabolic ornithine carbamoyltransferase, and carbamate kinase. Mutants of P. aeruginosa strain PAO affected in the structural gene (arcB) of the catabolic ornithine carbamoyltransferase were isolated. Firt, and argF mutation (i.e., a(More)
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