Search results for "Colicin"
showing 2 items of 2 documents
Comparison of necrotoxigenic Escherichia coli isolates from farm animals and from humans.
1999
Abstract Necrotoxigenic Escherichia coli (NTEC) isolated from animals and humans can belong to the same serogroups/types and produce or carry the genes coding for fimbrial and afimbrial adhesins of the same family, P, S, F17, and/or AFA, raising the question of a potential zoonotic source of human infection. The main purpose of this study was to compare 239 NTEC1 strains (45 from cattle, 65 from humans and 129 from piglets) and 98 NTEC2 strains from cattle, using a uniform and standardized typing scheme. The O serogroups and the biotypes recognized amongst NTEC1 and NTEC2 strains were quite varied, although some were more frequently observed (serogroups O2, O4, O6, O8, O18, O78, and O83 and…
Evidence for Direct Binding of the First Component of Complement, C1, to Outer Membrane Proteins from Salmonella minnesota
1985
The outer membrane of gram-negative bacteria consists of a tight lattice of lipopolysaccharides (LPS), phospholipids, and proteins. It has been shown in E. coli and S. typhimurium that LPS molecules are exclusively localized in the outer layer of the outer membrane (Muhlradt and Golecki 1975; Smit et al. 1975; Funatura and Nikaido 1980). Localization of proteins in the outer membrane is also indicated by the fact that various major outer membrane proteins in association with LPS, serve as receptors for phages (Datta et al. 1977; Mu-TOH et al. 1978; Henning and Jann 1979; Yu and Mizushima 1982) and colicins (Kadner et al. 1979; Konisky 1979).