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- W2068307678 startingPage "e1003585" @default.
- W2068307678 abstract "Flaviviruses deliver their genome into the cell by fusing the viral lipid membrane to an endosomal membrane. The sequence and kinetics of the steps required for nucleocapsid delivery into the cytoplasm remain unclear. Here we dissect the cell entry pathway of virions and virus-like particles from two flaviviruses using single-particle tracking in live cells, a biochemical membrane fusion assay and virus infectivity assays. We show that the virus particles fuse with a small endosomal compartment in which the nucleocapsid remains trapped for several minutes. Endosomal maturation inhibitors inhibit infectivity but not membrane fusion. We propose a flavivirus cell entry mechanism in which the virus particles fuse preferentially with small endosomal carrier vesicles and depend on back-fusion of the vesicles with the late endosomal membrane to deliver the nucleocapsid into the cytoplasm. Virus entry modulates intracellular calcium release and phosphatidylinositol-3-phosphate kinase signaling. Moreover, the broadly cross-reactive therapeutic antibody scFv11 binds to virus-like particles and inhibits fusion." @default.
- W2068307678 created "2016-06-24" @default.
- W2068307678 creator A5011253114 @default.
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- W2068307678 creator A5046067654 @default.
- W2068307678 creator A5086627050 @default.
- W2068307678 date "2013-09-05" @default.
- W2068307678 modified "2023-10-04" @default.
- W2068307678 title "Viral Membrane Fusion and Nucleocapsid Delivery into the Cytoplasm are Distinct Events in Some Flaviviruses" @default.
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- W2068307678 doi "https://doi.org/10.1371/journal.ppat.1003585" @default.
- W2068307678 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/3764215" @default.
- W2068307678 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/24039574" @default.
- W2068307678 hasPublicationYear "2013" @default.
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