1,289 results found
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Tubulin cofactors and Arl2 are cage-like chaperones that regulate the soluble αβ-tubulin pool for microtubule dynamics

    Stanley Nithianantham et al.
    Soluble αβ-tubulin assembly is regulated by a cage-like molecular complex containing tubulin cofactors and Arl2.
    1. Structural Biology and Molecular Biophysics
    2. Cell Biology

    A mutation uncouples the tubulin conformational and GTPase cycles, revealing allosteric control of microtubule dynamics

    Elisabeth A Geyer et al.
    A buried mutation in αβ-tubulin reveals an allosteric response to GDP in the lattice that dictates microtubule catastrophe and shrinking.
    1. Structural Biology and Molecular Biophysics

    Microtubule assembly governed by tubulin allosteric gain in flexibility and lattice induced fit

    Maxim Igaev, Helmut Grubmüller
    A new combined mechanism explains how GTP binding by tubulin is linked to its dynamics and energetics in solution and why GTP-induced flexibility, and not the tubulin conformation as such, drives microtubule assembly.
    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. Developmental Biology
    2. Neuroscience

    Synapse maintenance is impacted by ATAT-2 tubulin acetyltransferase activity and the RPM-1 signaling hub

    Melissa A Borgen et al.
    Genetic, developmental and pharmacological analysis in Caenorhabditis elegans demonstrate that ATAT-2 tubulin acetyltransferase activity regulates synapse maintenance by acting within the RPM-1 signaling network, but independent of the DLK-1 MAP3K.
    1. Cell Biology
    2. Structural Biology and Molecular Biophysics

    CM1-driven assembly and activation of yeast γ-tubulin small complex underlies microtubule nucleation

    Axel F Brilot et al.
    Cryo-EM structures reveal that the conserved CM1 motif drives γTuRC assembly by bridging adjacent γTuSC.
    1. Structural Biology and Molecular Biophysics
    2. Cell Biology

    A tethered delivery mechanism explains the catalytic action of a microtubule polymerase

    Pelin Ayaz et al.
    Using linked TOG domains that each bind a curved conformation of αβ-tubulin, a microtubule polymerase catalyzes fast elongation by concentrating αβ-tubulin near the polymer end.
    1. Neuroscience

    Multiple mechanisms link prestimulus neural oscillations to sensory responses

    Luca Iemi et al.
    Neural oscillations prior to a stimulus modulate the strength of early and late responses in opposite directions via distinct mechanisms.
    1. Cell Biology
    2. Structural Biology and Molecular Biophysics

    Structural basis of tubulin recruitment and assembly by microtubule polymerases with tumor overexpressed gene (TOG) domain arrays

    Stanley Nithianantham et al.
    TOG (tumor overexpressed gene) domains organize then polymerize tubulins at microtubule plus ends.
    1. Neuroscience

    Correlating STED and synchrotron XRF nano-imaging unveils cosegregation of metals and cytoskeleton proteins in dendrites

    Florelle Domart et al.
    The development of high-resolution correlative imaging of metals and proteins reveals the interaction of copper and zinc with the synaptic architecture of neurons.

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