
We have constructed an expression library of Bordetella pertussis DNA sequences, cloned in Escherichia coli. Random DNA fragments were inserted into the beta-galactosidase gene of bacteriophage lambda gt11 and plaques were screened with antibodies directed against filamentous hemagglutinin. The antigen-positive clone obtained expressed B. pertussis sequences as polypeptides fused to beta-galactosidase. The fusion polypeptides reacted both with antibodies to beta-galactosidase and with antibodies to filamentous hemagglutinin. The positive clone contains B. pertussis DNA sequences as determined by specific hybridization to Bordetella DNA.
DNA, Bacterial, Hemagglutinins, Base Sequence, Genes, Bacterial, Nucleic Acid Hybridization, Cloning, Molecular, Bordetella pertussis
DNA, Bacterial, Hemagglutinins, Base Sequence, Genes, Bacterial, Nucleic Acid Hybridization, Cloning, Molecular, Bordetella pertussis
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