Functional Consequences of Sequence Variation in Bundlin, the Enteropathogenic Escherichia coli Type IV Pilin Protein
نویسندگان
چکیده
منابع مشابه
Functional consequences of sequence variation in bundlin, the enteropathogenic Escherichia coli type IV pilin protein.
The bundle-forming pilus (BFP) of enteropathogenic Escherichia coli (EPEC) is an important virulence factor. We examined the role of divergent alleles of bfpA encoding bundlin, the BFP pilin protein, in pilus biogenesis, pilus interactions, and immune responses. We found that the BFP biogenesis machine from an EPEC strain that expresses one bundlin type is capable of assembling all other bundli...
متن کاملMolecular variation among type IV pilin (bfpA) genes from diverse enteropathogenic Escherichia coli strains.
Typical enteropathogenic Escherichia coli (EPEC) strains produce bundle-forming pili (BFP), type IVB fimbriae that have been implicated in EPEC virulence, antigenicity, autoaggregation, and localized adherence to epithelial cells (LA). BFP are polymers of bundlin, a pilin protein that is encoded by the bfpA gene found on a large EPEC plasmid. Striking sequence variation has previously been obse...
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Enteropathogenic Escherichia coli expresses a type IV fimbria known as the bundle-forming pilus (BFP) that is required for autoaggregation and localized adherence (LA) to host cells. A cluster of 14 genes is sufficient to reconstitute BFP biogenesis in a laboratory strain of E. coli. We have undertaken a systematic mutagenesis of the individual genes to determine the effect of each mutation on ...
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ژورنال
عنوان ژورنال: Infection and Immunity
سال: 2007
ISSN: 0019-9567,1098-5522
DOI: 10.1128/iai.00009-07