Literature DB >> 27697763

A Single Nucleotide Change in the Promoter mutp Enhances Fluoride Resistance of Streptococcus mutans.

Ying Liao1,2,3, Bernd W Brandt3, Min Zhang1,2, Jiyao Li4,2, Wim Crielaard3, Cor van Loveren3, Dong Mei Deng5,6.   

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.
Copyright © 2016, American Society for Microbiology. All Rights Reserved.

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Year:  2016        PMID： 27697763      PMCID： PMC5119038          DOI： 10.1128/AAC.01366-16

Source DB:  PubMed          Journal:  Antimicrob Agents Chemother        ISSN： 0066-4804            Impact factor:   5.191


  18 in total

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Review 6.  Fluoride and organic weak acids as modulators of microbial physiology.

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Authors:  J L Streckfuss; D Perkins; I M Horton; L R Brown; S Dreizen; L Graves
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10.  Sequence elements determining ampC promoter strength in E. coli.

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  10 in total

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9.  The Fitness Cost of Fluoride Resistance for Different Streptococcus mutans Strains in Biofilms.

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10.  The XRE Family Transcriptional Regulator SrtR in Streptococcus suis Is Involved in Oxidant Tolerance and Virulence.

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  10 in total

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