Virstatin

Virstatin

CAT N°: 21176
Price:

48.00 40.80

Virstatin is an inhibitor of the ToxT transcriptional regulator of V. cholerae, which regulates transcription of virulence factors that enable intestinal colonization.{40638} It inhibits ToxT dimerization and decreases expression of cholera toxin (CT) and toxin coregulated pilus (TCP) when used at a concentration of 50 ?M but virstatin does not inhibit growth of V. cholerae at this concentration (MBCs = 600 and 1,200 ?M for O395 and C6706 strains, respectively).{40638,40639} Virstatin administration protects infant mice (5 to 6 days old) from intestinal colonization by ToxT-dependent V. cholerae but not from strains that colonize via non-ToxT-dependent mechanisms. Virstatin (100 ?M) inhibits biofilm formation by A. baumannii by 38% under static conditions, which is at a lower concentration than that which inhibits growth (MIC = 1.6 mM).{40640} It decreases the motility of 60% of 30 mobile A. baumannii strains. Virstatin also binds to the accessory cholera enterotoxin (Ace) from V. cholerae (Ka = 9 x 104 M-1; Kd = 11 µM).{40641}

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