undefined mechanism of action. Using a Sal A-derived activity-based probe, we identify its targets in the Plasmodium falciparum parasite. All of the identified proteins contain α/β serine hydrolase domains and several are essential for parasite growth. One of the essential targets displays a high degree of homology to human monoacylglycerol lipase (MAGL) and is able to process lipid esters including
Salinipostin A(Sal A)是一种有效的抗疟原虫海洋
天然产物,具有不确定的作用机理。使用基于Sal A的基于活性的探针,我们在恶性疟原虫寄生虫中鉴定了其靶标。所有已鉴定的蛋白质均包含α/β
丝氨酸水解酶结构域,其中一些对于寄生虫生长至关重要。必需的靶标之一显示出与人单酰基
甘油脂肪酶(MAGL)的高度同源性,并且能够加工包括MAGL酰基
甘油酯底物的脂质酯。此Sal A靶标被抗肥胖药Orlistat抑制,该药物可破坏脂质代谢。耐药性选择产生的寄生虫仅显示出敏感性的轻微降低,并且在与弓形虫耐药性相关的含PRELI结构域的蛋白中获得了突变。