Abstract
Caulobacter crescentus is one of a small number of bacterial species that contain a periplasmic copper-zinc superoxide dismutase (CuZnSOD). A C. crescentus mutant, with the CuZnSOD gene interrupted by a promoterless cat gene, was constructed and characterized to analyze CuZnSOD function. Periplasmic SOD does not protect against oxyradical damage in the cytosol or play a major role in maintaining the integrity of the cell envelope. Studies of the effect of sodium citrate on plating efficiency suggest that CuZnSOD protects a periplasmic or membrane function(s) requiring magnesium or calcium.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 1198-1202 |
| Number of pages | 5 |
| Journal | Journal of Bacteriology |
| Volume | 175 |
| Issue number | 4 |
| DOIs |
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| State | Published - 1993 |
ASJC Scopus subject areas
- Microbiology
- Molecular Biology