Chlanda Petr, Zimmerberg Joshua
Section on Integrative Biophysics, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, MD, USA.
FEBS Lett. 2016 Jul;590(13):1940-54. doi: 10.1002/1873-3468.12118. Epub 2016 Mar 30.
Influenza A virus (IAV) assembles on the plasma membrane where viral proteins localize to form a bud encompassing the viral genome, which ultimately pinches off to give rise to newly formed infectious virions. Upon entry, the virus faces the opposite task-fusion with the endosomal membrane and disassembly to deliver the viral genome to the cytoplasm. There are at least four influenza proteins-hemagglutinin (HA), neuraminidase (NA), matrix 1 protein (M1), and the M2 ion channel-that are known to directly interact with the cellular membrane and modify membrane curvature in order to both assemble and disassemble membrane-enveloped virions. Here, we summarize and discuss current knowledge of the interactions of lipids and membrane proteins involved in the IAV replication cycle.
甲型流感病毒(IAV)在质膜上组装,病毒蛋白在质膜上定位形成一个包裹病毒基因组的芽,最终芽被掐断形成新形成的感染性病毒粒子。进入细胞后,病毒面临着相反的任务——与内体膜融合并解体,将病毒基因组递送至细胞质。已知至少有四种流感病毒蛋白——血凝素(HA)、神经氨酸酶(NA)、基质1蛋白(M1)和M2离子通道——可直接与细胞膜相互作用并改变膜曲率,从而组装和解体包膜病毒粒子。在此,我们总结并讨论了目前关于参与IAV复制周期的脂质和膜蛋白相互作用的知识。