Recent progress in the structural study of ion channels as insecticide targets

查看全文 作　　者：Hadiatullah [1]Hadiatullah;Yongliang [1]Zhang;Arthur [1,3]Samurkas;Yunxuan [4]Xie;Rajamanikandan [1]Sundarraj;Han [1,3]Zuilhof;Jianjun [5]Qiao;Zhiguang [1,2]Yuchi

机构地区：[1]Tianjin Key Laboratory for Modern Drug Delivery&High-Efficiency,Collaborative Innovation Center of Chemical Science and Engineering,Schoolof Pharmaceutical Science and Technology,Tianjin University,Tianjin,China;[2]Department of MolecularPharmacology,Tianjin Medical University Cancer Institute&Hospital,National Clinical Research Center for Cancer,Key Laboratory of Cancer Prevention and Therapy,Tianjin;[3]Laboratory of Organic Chemistry Wageningen University&Research,Wageningen,The Netherlands;[4]Department of Environmental Science,Tianjin University,Tianjin,China;[5]Key Laboratory of Systems Bioengineering(Ministry of Education),Tianjin University,Tianjin,China

出　　处：《Insect Science》索引2022年第29卷第6期,共30页

基　　金：provided by the NationalNatural Science Foundation of China(no.32022073 and 31972287 to Z.Y.);the Natural Science Foundation of Tianjin(no.19JCYBJC24500 to Z.Y.). 摘　　要：Ion channels,many expressed in insect neural and muscular systems,have drawn huge attention as primary targets of insecticides.With the recent technical breakthroughs in structural biology,especially in cryo-electron microscopy(cryo-EM),many new high-resolution structures of ion channel targets,apo or in complex with insecticides,have been solved,shedding light on the molecular mechanism of action of the insecticides and resistance mutations.These structures also provide accurate templates for structure-based insecticide screening and rational design.This review summarizes the recent progress in the structural studies of 5 ion channel families:the ryanodine receptor(RyR),the nicotinic acetylcholine receptor(nAChR),the voltage-gated sodium channel(VGSC),the transient receptor potential(TRP)channel,and the ligand-gated chloride channel(LGCC).We address the selectivity of the channel-targeting insecticides by examining the conservation of key coordinating residues revealed by the structures.The possible resistance mechanisms are proposed based on the locations of the identified resistance mutations on the 3D structures of the target channels and their impacts on the binding of insecticides.Finally,we discuss how to develop“green”insecticides with a novel mode of action based on these high-resolution structures to overcome the resistance. 关键词：cryo-electron microscopy structure crystal structure INSECTICIDE ion chan-nel RESISTANCE

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Recent progress in the structural study of ion channels as insecticide targets

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