Characterization of the gene encoding Superoxide dismutase of Bordetella pertussis and construction of a SOD-deficient mutant
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 S...
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Veröffentlicht in: | Gene 1994-05, Vol.142 (1), p.85-89 |
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Format: | Artikel |
Sprache: | eng |
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Zusammenfassung: | 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. |
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ISSN: | 0378-1119 1879-0038 |
DOI: | 10.1016/0378-1119(94)90359-X |