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- W3094080287 abstract "HIV-1 envelope (Env) N-glycosylation impact virus-cell entry and immune evasion. How each glycan interacts to shape the Env-protein-sugar complex and affects Env function is not well understood. Here, analysis of two Env variants from the same donor, with differing functional characteristics and N-glycosylation-site composition, revealed that changes to key N-glycosylation sites affected the Env structure at distant locations and had a ripple effect on Env-wide glycan processing, virus infectivity, antibody recognition, and virus neutralization. Specifically, the N262 glycan, although not in the CD4-binding site, modulated Env binding to the CD4 receptor, affected Env recognition by several glycan-dependent neutralizing antibodies, and altered site-specific glycosylation heterogeneity, with, for example, N448 displaying limited glycan processing. Molecular-dynamic simulations visualized differences in glycan density and how specific oligosaccharide positions can move to compensate for a glycan loss. This study demonstrates how changes in individual glycans can alter molecular dynamics, processing, and function of the Env-glycan shield." @default.
- W3094080287 created "2020-10-29" @default.
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- W3094080287 date "2020-11-01" @default.
- W3094080287 modified "2023-10-03" @default.
- W3094080287 title "Glycan Positioning Impacts HIV-1 Env Glycan-Shield Density, Function, and Recognition by Antibodies" @default.
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- W3094080287 doi "https://doi.org/10.1016/j.isci.2020.101711" @default.
- W3094080287 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/7649354" @default.
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