Outer membrane protein patterns mark clones of Escherichia coli O2 and O78 strains that cause avian septicemia
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چکیده
منابع مشابه
Development of an Allele-Specific PCR Assay for Simultaneous Sero-Typing of Avian Pathogenic Escherichia coli Predominant O1, O2, O18 and O78 Strains
Systemic infections by avian pathogenic Escherichia coli (APEC) are economically devastating to poultry industries worldwide. E. coli strains belonging to serotypes O1, O2, O18 and O78 are preferentially associated with avian colibacillosis. The rfb gene cluster controlling O antigen synthesis is usually various among different E. coli serotypes. In present study, the rfb gene clusters of E. co...
متن کاملRole of a major outer membrane protein in Escherichia coli.
Mutants of Escherichia coli B/r lacking a major outer membrane protein, protein b, were obtained by selecting for resistance to copper. These mutants showed a decreased ability to utilize a variety of metabolites when the metabolites were present at low concentrations. Also, mutants of E. coli K-12 lacking proteins b and c from the outer membrane were shown to have an identical defect in the up...
متن کاملIsolation and characterization of virulent bacteriophages against Escherichia coli serogroups O1, O2, and O78.
The goal of this study was to isolate and characterize a more complete set of phages that are active against Escherichia coli serogroups O1, O2, and O78, the main causative agents of avian colibacillosis. A mixture of E. coli (O1:K1), (O2:K1), and (O78:K80) was used as a host to isolate phages from wastewater and fecal samples from poultry processing plants. Seven phages were isolated; only 2 o...
متن کاملIdentification of a protein complex that assembles lipopolysaccharide in the outer membrane of Escherichia coli.
The outer membrane of most Gram-negative bacteria is made up of LPS, and in nearly all bacteria that contain LPS it is essential for the life of the organism. The lipid portion of this molecule, lipid A, also known as endotoxin, is a potent activator of the innate immune response. More than 50 genes are required to synthesize LPS and assemble it at the cell surface. Enormous progress has been m...
متن کاملEscherichia coli outer membrane protein K is a porin.
Protein K is an outer membrane protein found in pathogenic encapsulated strains of Escherichia coli. We present evidence here that protein K is structurally and functionally related to the E. coli K-12 porin proteins (OmpF, OmpC, and PhoE). Protein K was found to cross-react with antibody to OmpF protein and to share 8 out of 17 peptides in common with the OmpF protein. Strains that are OmpC po...
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ژورنال
عنوان ژورنال: Infection and Immunity
سال: 1992
ISSN: 0019-9567,1098-5522
DOI: 10.1128/iai.60.4.1687-1691.1992