Differential binding to and biofilm formation on, HEp-2 cells by Salmonella enterica serovar Typhimurium is dependent upon allelic variation in the fimH gene of the fim gene cluster.

Abstract excerpt

Type 1 fimbria-mediated adherence to HEp-2 cells by two strains of Salmonella enterica serovar Typhimurium was found to be different. Although both strains exhibited a strong mannose-sensitive haemagglutination reaction with guinea pig erythrocytes, characteristic of the expression of type 1 fimbriae, only one of the strains adhered in large numbers to HEp-2 cells. Characterization of the fimH genes, encoding the...

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