GI261520A functions as an antibacterial agent primarily by inhibiting the PhoQ phosphorylation pathway. This compound exhibits a dose-dependent suppression of PhoP/PhoQ activity and demonstrates an IC50 value of 3.2 μM in inhibiting pagC reporter expression levels. Additionally, GI261520A effectively reduces PhoQc autokinase activity by 80%, allowing it to penetrate eukaryotic cell membranes and target intravacuolar Salmonella, thereby preventing intramacrophage proliferation. It serves as a valuable tool for research into antibacterial mechanisms and intracellular bacterial behavior.
GI261520A functions as an antibacterial agent primarily by inhibiting the PhoQ phosphorylation pathway. This compound exhibits a dose-dependent suppression of PhoP/PhoQ activity and demonstrates an IC50 value of 3.2 μM in inhibiting pagC reporter expression levels. Additionally, GI261520A effectively reduces PhoQc autokinase activity by 80%, allowing it to penetrate eukaryotic cell membranes and target intravacuolar Salmonella, thereby preventing intramacrophage proliferation. It serves as a valuable tool for research into antibacterial mechanisms and intracellular bacterial behavior.
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