3,390 results found
    1. Cell Biology

    The step-wise pathway of septin hetero-octamer assembly in budding yeast

    Andrew Weems, Michael McMurray
    In budding yeast cells, slow monomeric septin GTPase activity and the cytosolic GTP:GDP ratio dictate the relative incorporation of alternative subunits during septin hetero-oligomer assembly, which proceeds by discrete, ordered steps dependent on allostery between interaction interfaces.
    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 et al.
    Higher-order assembly enables and links pathogen recognition and downstream steps in the TRIM5-mediated anti-HIV response.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Crystal structure of an HIV assembly and maturation switch

    Jonathan M Wagner et al.
    Folding and unfolding of a 6-helix bundle controls HIV assembly and maturation.
    1. Microbiology and Infectious Disease

    A protein secreted by the Salmonella type III secretion system controls needle filament assembly

    Junya Kato et al.
    A novel component of type III protein secretion systems involved in the assembly of the secretion machine is reported.
    1. Cell Biology

    Age-dependent deterioration of nuclear pore assembly in mitotic cells decreases transport dynamics

    Irina L Rempel et al.
    In replicative ageing yeast cells, an age-dependent impediment in proper assembly of nuclear pore complexes is associated with altered nuclear transport.
    1. Cell Biology
    2. Microbiology and Infectious Disease

    Synchronized HIV assembly by tunable PIP2 changes reveals PIP2 requirement for stable Gag anchoring

    Frauke Mücksch et al.
    PI(4,5)P2 plays a much broader role during the HIV-1 particle assembly process than assumed; it is indispensable not only for recruitment of Gag to the plasma membrane but also for the maintenance of Gag assemblies.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Insights into the molecular architecture and histone H3-H4 deposition mechanism of yeast Chromatin assembly factor 1

    Paul Victor Sauer et al.
    The CAF1 complex binds single histone H3-H4 dimers, and two such complexes associate with extended DNA elements to ensure the deposition of H3-H4 tetramers, the first step in the assembly of nucleosomes.
    1. Biochemistry and Chemical Biology
    2. Chromosomes and Gene Expression

    ATP-dependent chromatin assembly is functionally distinct from chromatin remodeling

    Sharon E Torigoe et al.
    The Chd1 motor protein performs two functionally distinct ATP-dependent activities, nucleosome assembly and chromatin remodeling, to generate periodic arrays of nucleosomes.
    1. Microbiology and Infectious Disease
    2. Structural Biology and Molecular Biophysics

    Efficient support of virus-like particle assembly by the HIV-1 packaging signal

    Mauricio Comas-Garcia et al.
    The packaging signal in HIV-1 genomic RNA supports in vitro particle assembly more efficiently than control RNAs, probably explaining its selective packaging during virus assembly in vivo.
    1. Physics of Living Systems

    Munc18-1-regulated stage-wise SNARE assembly underlying synaptic exocytosis

    Lu Ma et al.
    The Munc18-1 protein promotes formation of the t-SNARE complex and the half-zippered SNARE complex, two rate-limiting steps of SNARE assembly, to enhance membrane fusion.

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