We disclose herein that the BlaR1 protein of methicillin-resistant
Staphylococcus aureus
(MRSA), an antibiotic sensor/signal transducer, is phosphorylated on exposure to β-lactam antibiotics. This event is critical for the onset of the biochemical events that unleash induction of antibiotic resistance. The BlaR1 phosphorylation and the antibiotic-resistance phenotype are abrogated in the presence of inhibitors described herein that restore susceptibility of the organism to β-lactam antibiotics. The invention thus provides compounds and methods for abrogating antibiotic resistance to β-lactam antibiotics and for treating infections causes by antibiotics prone to developing resistance.
我们在此披露,
甲氧西林耐药
金黄色葡萄球菌(MRSA)的BlaR1蛋白质是一种抗生素感受器/
信号转导器,当暴露于β-内酰胺类抗生素时,该蛋白质被
磷酸化。这一事件对于引发
生物化学事件并释放抗生素耐药性的发生至关重要。BlaR1的
磷酸化和抗生素耐药表型在存在本文所述的
抑制剂时被废除,这些
抑制剂恢复了该
生物对β-内酰胺类抗生素的敏感性。因此,本发明提供了用于废除β-内酰胺类抗生素的抗生素耐药性和治疗由易于产生耐药性的抗生素引起的感染的化合物和方法。