1,831 results found
    1. Computational and Systems Biology
    2. Immunology and Inflammation

    Tailored design of protein nanoparticle scaffolds for multivalent presentation of viral glycoprotein antigens

    George Ueda et al.
    De novo protein nanoparticles were designed from scratch to present viral glycoprotein antigens, providing a systematic way to study the influence of antigen presentation geometry on immune response.
    1. Structural Biology and Molecular Biophysics
    2. Microbiology and Infectious Disease

    Distinct functional determinants of influenza hemagglutinin-mediated membrane fusion

    Tijana Ivanovic, Stephen C Harrison
    The mechanism of membrane-fusion catalysis in influenza viral infection of target cells is robust against the presence of a large fraction of non-productive viral fusion proteins.
    1. Structural Biology and Molecular Biophysics

    Sequential conformational rearrangements in flavivirus membrane fusion

    Luke H Chao et al.
    The West Nile Virus envelope protein catalyzes membrane fusion through low-pH induced conformational rearrangement, with a rate determined by the formation of two trimeric complexes at the contact zone between the virus and target membrane.
    1. Microbiology and Infectious Disease

    SARS-CoV-2 entry into human airway organoids is serine protease-mediated and facilitated by the multibasic cleavage site

    Anna Z Mykytyn et al.
    Whereas SARS-CoV-2 utilizes cathepsins to enter most cell lines, human airway organoids revealed that entry into relevant cells is dependent on serine proteases, which can be targeted for treatment.
    1. Structural Biology and Molecular Biophysics

    Sterically confined rearrangements of SARS-CoV-2 Spike protein control cell invasion

    Esteban Dodero-Rojas et al.
    SARS-CoV-2 entry mechanism through membrane fusion is regulated by the spike protein glycosylation state.
    1. Cell Biology

    A viral fusogen hijacks the actin cytoskeleton to drive cell-cell fusion

    Ka Man Carmen Chan et al.
    A viral fusogen drives cell-cell fusion by hijacking the actin machinery to directly couple actin assembly with a short fusogenic ectodomain.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    SARS-CoV-2 S protein:ACE2 interaction reveals novel allosteric targets

    Palur V Raghuvamsi et al.
    SARS-CoV-2 spike protein binding to receptor angiotensin-converting enzyme 2 allosterically enhances furin proteolysis at distal S1/S2 cleavage sites.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Fusion surface structure, function, and dynamics of gamete fusogen HAP2

    Juan Feng et al.
    Structure, dynamics, and mutation of a gamete fusion protein and comparisons to viral homologues suggest that after trimerization the domain bearing the membrane-inserting fusion loops can pivot with respect to the trimer 3-fold axis.
    1. Structural Biology and Molecular Biophysics

    How small-molecule inhibitors of dengue-virus infection interfere with viral membrane fusion

    Luke H Chao et al.
    Single-particle studies of dengue-virus membrane fusion and the effect of small-molecule inhibitors of infection clarify the viral fusion mechanism.
    1. Computational and Systems Biology
    2. Medicine

    SARS-CoV-2 strategically mimics proteolytic activation of human ENaC

    Praveen Anand et al.
    SARS-CoV-2 has evolved to cleverly mimic the FURIN-cleavage site in human ENaC-α, unlike any prior coronavirus strain, shedding new light on the Acute Respiratory Distress Syndrome (ARDS) in COVID-19 patients.

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