119 results found
    1. Immunology and Inflammation
    2. Microbiology and Infectious Disease

    Primate TRIM5 proteins form hexagonal nets on HIV-1 capsids

    Yen-Li Li, Viswanathan Chandrasekaran ... Wesley I Sundquist
    To protect mammals against retroviral infections, TRIM5 restriction factors recognize viral capsids by forming complementary hexagonal nets that can adapt to the patterns of capsid protein subunits on the viral capsid surface.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Crystal structure of an HIV assembly and maturation switch

    Jonathan M Wagner, Kaneil K Zadrozny ... Owen Pornillos
    Folding and unfolding of a 6-helix bundle controls HIV assembly and maturation.
    1. Physics of Living Systems
    2. Computational and Systems Biology

    Many-molecule encapsulation by an icosahedral shell

    Jason D Perlmutter, Farzaneh Mohajerani, Michael F Hagan
    Computational and theoretical models reveal mechanisms by which protein compartments assemble around enzymes and reagents to facilitate reactions in bacteria, allowing the identification of strategies for reengineering such compartments as customizable nanoreactors.
    1. Cell Biology
    2. Plant Biology

    Evolutionarily unique mechanistic framework of clathrin-mediated endocytosis in plants

    Madhumitha Narasimhan, Alexander Johnson ... Jiří Friml
    The examination of the ultra-structure and in vivo dynamics of endocytosis in plants reveal plants unique actin-independent, clathrin-mediated endocytosis mechanisms to overcome their unique physiological properties.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Mechanism of B-box 2 domain-mediated higher-order assembly of the retroviral restriction factor TRIM5α

    Jonathan M Wagner, Marcin D Roganowicz ... Owen Pornillos
    Higher-order assembly enables and links pathogen recognition and downstream steps in the TRIM5-mediated anti-HIV response.
    1. Structural Biology and Molecular Biophysics

    Structure and in situ organisation of the Pyrococcus furiosus archaellum machinery

    Bertram Daum, Janet Vonck ... Werner Kühlbrandt
    Using both electron cryo-tomography and helical reconstruction, the first structure of the entire archaellum machinery with an assembled filament has been determined, providing the structural basis for our understanding of archaeal motility.
    1. Microbiology and Infectious Disease

    A myristoyl switch at the plasma membrane triggers cleavage and oligomerization of Mason-Pfizer monkey virus matrix protein

    Markéta Častorálová, Jakub Sýs ... Tomas Ruml
    Biochemical and instrumental analysis showed that the membrane-induced exposure of myristoyl from the MA protein of Mason-Pfizer monkey virus triggers allosteric conformational changes resulting in MA oligomerization and unfolding of the cleavage site between MA and downstream domains of Gag.
    1. Microbiology and Infectious Disease

    Structural basis for capsid recruitment and coat formation during HSV-1 nuclear egress

    Elizabeth B Draganova, Jiayan Zhang ... Ekaterina E Heldwein
    Interactions were visualized between the nuclear egress complex from herpes simplex virus and a capsid protein that could promote nucleocytoplasmic translocation of the capsid in infected cells.
    1. Biochemistry and Chemical Biology
    2. Microbiology and Infectious Disease

    Hepatitis B virus core protein allosteric modulators can distort and disrupt intact capsids

    Christopher John Schlicksup, Joseph Che-Yen Wang ... Adam Zlotnick
    Small molecule antivirals that drive assembly of HBV capsid protein can also bind to pre-assembled capsids causing them to change morphology or even break, suggesting a complex transduction of binding effects across the capsid.
    1. Cell Biology
    2. Microbiology and Infectious Disease

    Coupling chemosensory array formation and localization

    Alejandra Alvarado, Andreas Kjær ... Simon Ringgaard
    Formation and cell pole-localization of chemotactic signaling-arrays is a coupled process mediated by ParP, which drives localized array-assembly and regulates the localization-dynamics of its network constituents.

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