Summary
Complementation experiments with cloned DNA fragments encoding either the KS71A, the KS71B or the KS71C fimbriae of the pyelonephritogenic Escherichia coli strain KS71 were used to localise the P-fimbrillin genes and to demonstrate regulatory interactions between the cloned genes. The structural genes of the KS71A and KS71B fimbriae were located within a common 1.1 kilobase pair ClaI-SmaI fragment, and it was shown that the gene clusters for these fimbriae could complement each other in trans. The gene cluster encoding the KS71C fimbriae did not complement for the other KS71 fimbriae. A DNA fragment, located near the KS71A fimbrillin gene, was found to enhance the production of the KS71B fimbriae in trans.
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Communicated by P.T. Emmerson
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Rhen, M., Väisänen-Rhen, V., Pere, A. et al. Complementation and regulatory interaction between two cloned fimbrial gene clusters of Escherichia coli strain KS71. Molec. Gen. Genet. 200, 60–64 (1985). https://doi.org/10.1007/BF00383312
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DOI: https://doi.org/10.1007/BF00383312