The Antimalarial Natural Product Salinipostin A Identifies Essential α/β Serine Hydrolases Involved in Lipid Metabolism in P. falciparum Parasites
作者:Euna Yoo、Christopher J. Schulze、Barbara H. Stokes、Ouma Onguka、Tomas Yeo、Sachel Mok、Nina F. Gnädig、Yani Zhou、Kenji Kurita、Ian T. Foe、Stephanie M. Terrell、Michael J. Boucher、Piotr Cieplak、Krittikorn Kumpornsin、Marcus C.S. Lee、Roger G. Linington、Jonathan Z. Long、Anne-Catrin Uhlemann、Eranthie Weerapana、David A. Fidock、Matthew Bogyo
DOI:10.1016/j.chembiol.2020.01.001
日期:2020.2
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。