Abstract
To figure out the changed biological characteristics of a fluoride-resistant strain compared with those of the parent sensitive strain of Streptococcus mutans(S. mutans) with the help of differential proteomics analysis, sixty-seven proteins with obvious differential expression were identified in fluoride-resistant strain. Among them are the important virulence factors causing caries, including glucosyltransferase-S, glucosyltransferase-I, glucosyltransferase-Si, major cell-surface adhesin Pac, F-ATPase β-subunit, Ffh, molecular chaperone DnaK, chaperonin GroEL, and the lactate dehydrogenase. We obtained the differential proteomics expression profiles of the fluoride-resistant strain(UA159-FR) and its parental strain(UA159) of S. mutans. Several important virulence factors bringing about caries were identified to have differential expressions, among which the expression of lactate dehydrogenase in fluoride-resistant strain was enhanced compared to that in its parent strain. The results could provide the basis for analysing the functions of proteins encoded by caries-related genes from the fluoride-resistant S. mutans strain.
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Supported by the National Natural Science Foundation of China(Nos.81170945, 81200774).
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Zhao, H., Zhang, Z., Zhu, L. et al. Differential proteomics analysis on fluoride-resistant Streptococcus mutans by label-free quantitation. Chem. Res. Chin. Univ. 30, 566–571 (2014). https://doi.org/10.1007/s40242-014-4035-9
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DOI: https://doi.org/10.1007/s40242-014-4035-9