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Vag8, a Bordetella pertussis bvg -Regulated Protein

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ABSTRACT Bordetella pertussis expresses a bvg -regulated 95-kDa protein, Vag8, encoded by vag-8 . Southern blot analysis indicates that strains of Bordetella bronchiseptica and Bordetella parapertussis have DNA homologous to vag-8 . Antiserum raised to a fusion of maltose binding protein to an N-terminal 60-kDa fragment of Vag8 recognizes the native 95-kDa protein in immunoblots of B. pertussis and B. bronchiseptica but not B. parapertussis . A 95-kDa protein-negative derivative of B. pertussis 18323 containing a deletion of vag-8 colonized mice as efficiently as the parent B. pertussis strain in a mouse aerosol model of pertussis.
Title: Vag8, a Bordetella pertussis bvg -Regulated Protein
Description:
ABSTRACT Bordetella pertussis expresses a bvg -regulated 95-kDa protein, Vag8, encoded by vag-8 .
Southern blot analysis indicates that strains of Bordetella bronchiseptica and Bordetella parapertussis have DNA homologous to vag-8 .
Antiserum raised to a fusion of maltose binding protein to an N-terminal 60-kDa fragment of Vag8 recognizes the native 95-kDa protein in immunoblots of B.
pertussis and B.
bronchiseptica but not B.
parapertussis .
A 95-kDa protein-negative derivative of B.
pertussis 18323 containing a deletion of vag-8 colonized mice as efficiently as the parent B.
pertussis strain in a mouse aerosol model of pertussis.

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