| Autor: |
YAMAMOTO, Yuji, HIGUCHI, Masako, POOLE, Leslie B., KAMIO, Yoshiyuki |
| Zdroj: |
Bioscience, Biotechnology, and Biochemistry; January 2000, Vol. 64 Issue: 5 p1106-1109, 4p |
| Abstrakt: |
Alkyl hydroperoxide reductase in Streptococcus mutansconsists of two components, Nox-1 and AhpC. Deletion of nox-1and ahpCin a double mutant as well as the wild-type of Streptococcus mutanscan form colonies in the presence of air to the same extent. The evidence suggested the presence of some other antioxidant system(s) independent of the Nox-1/AhpC system in the bacterium. Here we identified a new antioxidant gene (dpr) and the gene product (Dpr) which complements the defect of peroxidase activity caused by the deletion of nox-1and ahpCin S. mutans. The dpr-disruption mutant of S. mutanscould form colonies anaerobically but not aerobically. |
| Databáze: |
Supplemental Index |
| Externí odkaz: |
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