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- W3011805897 abstract "Abstract Chikungunya virus (CHIKV) presents a major burden on healthcare systems worldwide, but specific treatment remains unavailable. Attachment and fusion of CHIKV to the host cell membrane is mediated by the E1/E2 protein spikes. We used an in vitro single-particle fusion assay to study the effect of the potent, neutralizing antibody CHK-152 on CHIKV binding and fusion. We find that CHK-152 shields the virions, inhibiting interaction with the target membrane and inhibiting fusion. Analysis of the ratio of bound antibodies to epitopes implied that CHIKV fusion is a highly cooperative process. Further, dissociation of the antibody at lower pH results in a finely balanced kinetic competition between inhibition and fusion, suggesting a window of opportunity for the spike proteins to act and mediate fusion even in the presence of antibody." @default.
- W3011805897 created "2020-03-23" @default.
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- W3011805897 date "2020-03-19" @default.
- W3011805897 modified "2023-10-18" @default.
- W3011805897 title "Cooperative Chikungunya virus membrane fusion and its sub-stoichiometric inhibition by CHK-152 antibody" @default.
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- W3011805897 doi "https://doi.org/10.1101/2020.03.18.996512" @default.
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