31 results found
    1. Cell Biology
    2. Developmental Biology

    Coordinated genomic control of ciliogenesis and cell movement by RFX2

    Mei-I Chung, Taejoon Kwon ... John B Wallingford
    Systems-level analysis in vertebrate ciliated epithelial cells shows that the network of genes activated by the transcription factor Rfx2 controls the development, migration, insertion and function of these cells.
    1. Structural Biology and Molecular Biophysics
    2. Cell Biology

    Bidirectional helical motility of cytoplasmic dynein around microtubules

    Sinan Can, Mark A Dewitt, Ahmet Yildiz
    Unlike other cytoskeletal motors that produce torque in a specific direction, cytoplasmic dynein generates torque in either direction, resulting in bidirectional helical motility along microtubules.
    1. Structural Biology and Molecular Biophysics
    2. Cell Biology

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

    Pelin Ayaz, Sarah Munyoki ... Luke M Rice
    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. Cell Biology
    2. Neuroscience

    Genetic defects in β-spectrin and tau sensitize C. elegans axons to movement-induced damage via torque-tension coupling

    Michael Krieg, Jan Stühmer ... Miriam B Goodman
    A conceptual framework and physical model shows how actin-spectrin networks and microtubule bundles can protect axons from mechanical stress.
    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. Structural Biology and Molecular Biophysics
    2. Cell Biology

    Direct measurement of conformational strain energy in protofilaments curling outward from disassembling microtubule tips

    Jonathan W Driver, Elisabeth A Geyer ... Charles L Asbury
    The protofilaments that curl outward from a disassembling microtubule tip carry a large amount of strain energy and they can drive movement with an efficiency similar to conventional motor proteins.
    1. Neuroscience

    Microtubule-dependent ribosome localization in C. elegans neurons

    Kentaro Noma, Alexandr Goncharov ... Yishi Jin
    The utility of split GFP for tissue-specific visualization of ribosomes in live Caenorhabditis elegans demonstrates the link between ribosomes and microtubules.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Multivalency of NDC80 in the outer kinetochore is essential to track shortening microtubules and generate forces

    Vladimir A Volkov, Pim J Huis in 't Veld ... Andrea Musacchio
    Multiple NDC80 complexes in the outer kinetochore cooperate to bind the ends of depolymerizing microtubules and harness their power stroke.
    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, Jiayu Yu ... Sheng Ye
    Structural and functional approaches unambiguously revealed physiologically relevant lateral interactions between FtsZ protofilaments.
    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, Brian D Cook ... Jawdat Al-Bassam
    TOG (tumor overexpressed gene) domains organize then polymerize tubulins at microtubule plus ends.

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