Comparison of outer membrane protein and lipopolysaccharide profiles of enterotoxigenic Escherichia coli strains isolet in Säo Paulo, Brazil
Braz. j. med. biol. res
;
28(5): 545-52, May 1995. ilus, tab
Artigo
em Inglês
| LILACS
| ID: lil-154875
ABSTRACT
The outer membrane protein (OMP) and lipopolysaccharide (LPS) patterns of 12 strains of serogroups of enterotoxigenic E. coli frequntly isolated in Säo Paulo city werte determined by fractionation techniques and by sodium dodecyl sulfate-plyacrylamide gel electrophoresis (SDS-PAGE). Five O6, three O78 and four O128 serogroup isolates of different serotypes (flagellar antigens) and virulence factors (toxins and colonization factor antigens) showed a high degree of variability in their OMP pattern and at least nine groups could be identified. The analysis of LPS aptterns by SDS-PAGE showed a homogenous profile for the O6 strains and some minor differences for the O128 and 078 strains. The oresented data indicate that analysis of OMP and LPS by SDS-PAGE may further improve the discriminating ability of extensively used serological techniques or the detection of virulence factors and could be a useful tool in epidemiological studies of enterotoxigenic E. coli (ETEC) strains from this area
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Índice:
LILACS (Américas)
Assunto principal:
Proteínas da Membrana Bacteriana Externa
/
Lipopolissacarídeos
/
Escherichia coli
Tipo de estudo:
Estudo prognóstico
País/Região como assunto:
América do Sul
/
Brasil
Idioma:
Inglês
Revista:
Braz. j. med. biol. res
Assunto da revista:
Biologia
/
Medicina
Ano de publicação:
1995
Tipo de documento:
Artigo
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