10 results found
    1. Cell Biology
    2. Structural Biology and Molecular Biophysics

    Lateral interactions between protofilaments of the bacterial tubulin homolog FtsZ are essential for cell division

    Fenghui Guan et al.
    Structural and functional approaches unambiguously revealed physiologically relevant lateral interactions between FtsZ protofilaments.
    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. Cell Biology

    Electrostatic lateral interactions drive ESCRT-III heteropolymer assembly

    Sudeep Banjade et al.
    ESCRT-III heteropolymers utilize non-specific lateral electrostatic interactions to recognize one another, which may enable the polymers to slide along one another and adapt to different curvatures.
    1. Cell Biology
    2. Microbiology and Infectious Disease

    Architecture of the ring formed by the tubulin homologue FtsZ in bacterial cell division

    Piotr Szwedziak et al.
    The architecture of the bacterial cytokinetic ring in cells and in artificial liposome reconstitutions has been described using electron microscopy, leading to a mechanism of constriction.
    1. Structural Biology and Molecular Biophysics
    2. Cell Biology

    Structural basis for activation, assembly and membrane binding of ESCRT-III Snf7 filaments

    Shaogeng Tang et al.
    Snf7 crystal structures reveal the mechanisms of ESCRT-III activation and polymerization into membrane-remodeling filaments.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Bacterial actin MreB forms antiparallel double filaments

    Fusinita van den Ent et al.
    The prokaryotic actin homologue MreB forms antiparallel double filaments in vitro and in vivo, an architecture that is unprecedented among the actin family of proteins.
    1. Cell Biology

    A bacteriophage tubulin harnesses dynamic instability to center DNA in infected cells

    Marcella L Erb et al.
    A bacteriophage tubulin homolog, PhuZ, forms a structure with the biochemical, structural, and functional properties of a simplified, bipolar spindle.
    1. Microbiology and Infectious Disease

    MreB filaments align along greatest principal membrane curvature to orient cell wall synthesis

    Saman Hussain et al.
    MreB filaments bind, orient, and move along the direction of greatest membrane curvature, thus orienting the insertion of new glycan strands around the cell circumference in a manner that may help establish and maintain rod shape.
    1. Microbiology and Infectious Disease

    An essential Staphylococcus aureus cell division protein directly regulates FtsZ dynamics

    Prahathees J Eswara et al.
    GpsB in Staphylococcus aureus directly regulates the central cell division protein FtsZ, a different function from that assigned for GpsB in other closely related organisms.
    1. Microbiology and Infectious Disease
    2. Physics of Living Systems

    Mechanics and dynamics of translocating MreB filaments on curved membranes

    Felix Wong et al.
    Principal curvature-dependent motion of bacterial actin MreB results in localization consistent with all known literature.

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