4,886 results found
    1. Microbiology and Infectious Disease
    2. Structural Biology and Molecular Biophysics

    Viruses: The secrets of the stability of the HIV-1 capsid

    Martin Obr, Hans-Georg Kräusslich
    Structural and biophysical studies help to follow the disassembly of the HIV-1 capsid in vitro, and reveal the role of a small molecule called IP6 in regulating capsid stability.
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    1. Structural Biology and Molecular Biophysics

    Viral genome structures are optimal for capsid assembly

    Jason D Perlmutter et al.
    Computer simulations reveal that viral nucleic acids have an ideal structure for being packaged into outer protein shells called capsids.
    1. Structural Biology and Molecular Biophysics

    Kinetics of HIV-1 capsid uncoating revealed by single-molecule analysis

    Chantal L Márquez et al.
    Disassembly of the HIV-1 capsid is a catastrophic process, whereby initiation and propagation can be controlled independently by molecules that bind to different features of the capsid lattice.
    1. Structural Biology and Molecular Biophysics

    All-atom molecular dynamics of the HBV capsid reveals insights into biological function and cryo-EM resolution limits

    Jodi A Hadden et al.
    All-atom molecular dynamics of the HBV capsid supports a role for structural asymmetry in biological function, reveals the potential for triangular pores to mediate cellular signaling, and indicates that capsid flexibility may limit resolution attainable by cryo-EM.
    1. Microbiology and Infectious Disease
    2. Structural Biology and Molecular Biophysics

    IP6 is an HIV pocket factor that prevents capsid collapse and promotes DNA synthesis

    Donna L Mallery et al.
    The inositol phosphate IP6 is selectively packaged into HIV virions, where it coordinates electropositive pores in the capsid to prevent spontaneous collapse and promote encapsidated DNA synthesis.
    1. Structural Biology and Molecular Biophysics

    The phage L capsid decoration protein has a novel OB-fold and an unusual capsid binding strategy

    Rebecca L Newcomer et al.
    The structure of phage L's Dec demonstrates a new fold within this family of proteins, and shows modulation of capsid binding occurs through two sites, with site 1 being preferred.
    1. Immunology and Inflammation
    2. Microbiology and Infectious Disease

    Primate TRIM5 proteins form hexagonal nets on HIV-1 capsids

    Yen-Li Li et al.
    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. Neuroscience

    CAPS-1 promotes fusion competence of stationary dense-core vesicles in presynaptic terminals of mammalian neurons

    Margherita Farina et al.
    Stationary dense-core vesicles depend on the CAPS-1 protein to fuse with the presynaptic membrane.
    1. Evolutionary Biology
    2. Neuroscience

    Physiological constraint on acrobatic courtship behavior underlies rapid sympatric speciation in bearded manakins

    Meredith C Miles et al.
    Skeletal muscle performance sets the course of rapid speciation by defining the evolutionary trajectory of reproductive behavior.
    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 et al.
    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.

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