1,913 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

    An abundant quiescent stem cell population in Drosophila Malpighian tubules protects principal cells from kidney stones

    Chenhui Wang, Allan C Spradling
    Drosophila renal stem cells are exceptional in abundance, require induction to produce a single cell type, principal cells, and mitigate damage during adulthood associated with external stresses.
    1. Cell Biology
    2. Stem Cells and Regenerative Medicine

    Ferroptotic stress promotes the accumulation of pro-inflammatory proximal tubular cells in maladaptive renal repair

    Shintaro Ide et al.
    Ferroptotic stress enhances the accumulation of damage-associated inflammatory proximal tubular cell state, thereby promoting maladaptive renal repair and the AKI-to-CKD transition.
    1. Cell Biology
    2. Developmental Biology

    Apical targeting of the formin Diaphanous in Drosophila tubular epithelia

    Tal Rousso et al.
    Synergistic interactions with PI(4,5)P2 and activated Rho1, which are enriched at the apical membrane of tubular organs, facilitate tight apical targeting of the formin Diaphanous.
    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. Developmental Biology

    Genetic screen in Drosophila muscle identifies autophagy-mediated T-tubule remodeling and a Rab2 role in autophagy

    Naonobu Fujita et al.
    Analyses of a developmentally regulated Drosophila myofiber remodeling program provide insight into induced autophagy required for T-tubule membrane reorganization, and uncover a conserved Rab2 role in autophagosome-lysosome fusion.
    1. Developmental Biology

    Release and spread of Wingless is required to pattern the proximo-distal axis of Drosophila renal tubules

    Robin Beaven, Barry Denholm
    In contrast to growing evidence that juxtracrine signalling accounts for Wnt/Wingless patterning function, Wingless behaves as a released signal in Drosophila renal tubule development, being secreted from the midgut to spread and pattern the proximal tubule.

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