A single nucleotide change in the promoter mutp enhances fluoride resistance of Streptococcus mutans

Open Access
Authors
Publication date 12-2016
Journal Antimicrobial Agents and Chemotherapy
Volume | Issue number 60 | 12
Pages (from-to) 7509-7512
Organisations
  • Faculty of Dentistry (ACTA)
Abstract Previously, we identified a single nucleotide mutation in the promoter (mutp) of the fluoride antiporter-coding genes in a naturally fluoride-resistant Streptococcus mutans strain. Here, we studied the role of this mutation in a defined genetic background. The results confirmed that this mutation alone confers fluoride resistance on S. mutans, as shown by growth and lactic acid production assays. This resistance was explained by constitutively higher mutp promoter activity and upregulation of the fluoride antiporter-coding genes.
Document type Article
Note © 2016, American Society for Microbiology. - With supplemental material.
Language English
Published at https://doi.org/10.1128/AAC.01366-16
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