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Characterization of the gene encoding Superoxide dismutase of Bordetella pertussis and construction of a SOD-deficient mutant

  • David DeShazer
  • , Jason D. Barnnan
  • , Michael J. Moran
  • , Richard L. Friedman

Research output: Contribution to journalArticlepeer-review

Abstract

The Bordetella pertussis gene sodB, encoding Superoxide dismutase (SOD), was cloned by complementation of an Escherichia coli sodAsodB double mutant. The nucleotide sequence of sodB predicted a 21-kDa protein with homology to manganese- and iron-containing SODs from other organisms. Examination of SOD activity on gels suggests that B. pertussis extracts have a single SOD containing Fe+ as a prosthetic group. A SOD-deβcient mutant was obtained by insertional inactivation of sodB in B. pertussis, confirming that there is only one SOD in this organism.

Original languageEnglish (US)
Pages (from-to)85-89
Number of pages5
JournalGene
Volume142
Issue number1
DOIs
StatePublished - May 3 1994

Keywords

  • Oxidative stress
  • homologous recombination
  • human pathogen
  • insertion mutagenesis
  • metalloenzyme
  • suicide vector

ASJC Scopus subject areas

  • Genetics

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