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Certain uropathogenic and neonatal meningitis-causing strains of Escherichia coli express a 114 kDa protein toxin called cytotoxic necrotizing factor 1 (CNF1). The toxin causes alteration of the host cell actin cytoskeleton and promotes bacterial invasion of blood-brain barrier endothelial cells. CNF1 belongs to a unique group of large cytotoxins that cause(More)
Ribosomes are the cellular machinery responsible for protein synthesis. A well-orchestrated step in the elongation cycle of protein synthesis is the precise translocation of the tRNA-mRNA complex within the ribosome. Here we report the application of a new in vitro modification-interference method for the identification of bases in 16S rRNA that are(More)
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