Molecular basis of Streptococcus mutans sortase A inhibition by the flavonoid natural product trans-chalcone

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Molecular basis of Streptococcus mutans sortase A inhibition by the flavonoid natural product trans-chalcone.

Sortase A (SrtA) from Gram positive pathogens is an attractive target for inhibitors due to its role in the attachment of surface proteins to the cell wall. We found that the plant natural product trans-chalcone inhibits Streptococcus mutans SrtA in vitro and also inhibited S. mutans biofilm formation. Mass spectrometry revealed that the trans-chalcone forms a Michael addition adduct with the a...

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Effects of missense mutations in sortase A gene on enzyme activity in Streptococcus mutans.

BACKGROUND Streptococcus mutans (S. mutans) is the major aetiological agent of dental caries, and the transpeptidase Sortase A (SrtA) plays a major role in cariogenicity. The T168G and G470A missense mutations in the srtA gene may be linked to caries susceptibility, as demonstrated in our previous studies. This study aimed to investigate the effects of these missense mutations of the srtA gene ...

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ژورنال

عنوان ژورنال: Chemical Communications

سال: 2015

ISSN: 1359-7345,1364-548X

DOI: 10.1039/c5cc01816a