1,043 results found
    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.
    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. 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. Biochemistry and Chemical Biology
    2. Cell Biology

    Quantitative proteomics reveal proteins enriched in tubular endoplasmic reticulum of Saccharomyces cerevisiae

    Xinbo Wang et al.
    Immunoisolation combined with quantitative proteomics identifies 79 proteins enriched in the tubular endoplasmic reticulum and provides useful tool for analyzing this organelle's functions.
    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

    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. Biochemistry and Chemical Biology
    2. Cell Biology

    Full length RTN3 regulates turnover of tubular endoplasmic reticulum via selective autophagy

    Paolo Grumati et al.
    Full length RTN3 homodimerization mediates ER tubules fragmentation and their subsequent delivery to lysosome.
    1. Cell Biology
    2. Neuroscience

    VCP-dependent muscle degeneration is linked to defects in a dynamic tubular lysosomal network in vivo

    Alyssa E Johnson et al.
    The AAA-ATPase VCP sustains sarcoplasmic proteostasis, in part, by controlling autophagosome-lysosome fusion and the integrity of a dynamic tubular lysosomal network.

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