8 results found
    1. Evolutionary Biology
    2. Microbiology and Infectious Disease

    Mapping mutational effects along the evolutionary landscape of HIV envelope

    Hugh K Haddox et al.
    Deep mutational scanning of Env proteins from two transmitted-founder strains of HIV shows how the accessible evolutionary space changes as the virus evolves.
    1. Structural Biology and Molecular Biophysics
    2. Immunology and Inflammation

    Structural basis for germline antibody recognition of HIV-1 immunogens

    Louise Scharf et al.
    Structural and computational analyses of germline antibody/HIV-1 gp120 complexes provide both general principles relevant to the unusual evolution of potent CD4-binding site antibodies and guidelines for structure-based immunogen design.
    1. Epidemiology and Global Health
    2. Immunology and Inflammation

    A single, continuous metric to define tiered serum neutralization potency against HIV

    Peter Hraber et al.
    To quantify serum or antibody activity against HIV-1, logistic regression of single-dilution neutralization outcomes can efficiently summarize neutralization potency and indicate which samples may lack sufficient statistical support, for high-throughput screening in large-scale vaccine trials.
    1. Structural Biology and Molecular Biophysics

    Germline VRC01 antibody recognition of a modified clade C HIV-1 envelope trimer and a glycosylated HIV-1 gp120 core

    Andrew J Borst et al.
    An integrative structural and biophysical workflow indicates engagement of VRC01 germline antibodies can occur with a gp120 426c core construct containing all wild-type N-linked glycosylation sites, including the Asn276 glycan.
    1. Microbiology and Infectious Disease

    A virus-packageable CRISPR screen identifies host factors mediating interferon inhibition of HIV

    Molly OhAinle et al.
    Host restriction factors that block cross-species transmission also play a role in limiting the replication of highly-adapted HIV-1 in IFN-stimulated cells.
    1. Structural Biology and Molecular Biophysics

    Asymmetric recognition of HIV-1 Envelope trimer by V1V2 loop-targeting antibodies

    Haoqing Wang et al.
    Single particle cryoEM structure of antibody complex with HIV-1 envelope trimer reveals new mode of asymmetric recognition of trimer apex.
    1. Immunology and Inflammation

    The HIV-1 envelope protein gp120 is captured and displayed for B cell recognition by SIGN-R1+ lymph node macrophages

    Chung Park et al.
    Lymph node gp120 specific B cells extract locally injected HIV-1 gp120 from SIGN-R1 positive macrophages that line the subcapsular sinus overlying the lymph node interfollicular channels.
    1. Microbiology and Infectious Disease
    2. Structural Biology and Molecular Biophysics

    HIV-1 Env trimer opens through an asymmetric intermediate in which individual protomers adopt distinct conformations

    Xiaochu Ma et al.
    The identification of a single-CD4 bound asymmetric HIV-1 Envelope trimer intermediate provides new mechanistic insights into the activation of Envelope for fusion, and highlights the importance of asymmetry in biology.

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