2,404 results found
    1. Cell Biology

    Dynein–Dynactin–NuMA clusters generate cortical spindle-pulling forces as a multi-arm ensemble

    Masako Okumura et al.
    Optogenetic reconstitution reveals core functional modules and architecture of the cortical force-generating machinery in human cells.
    1. Cell Biology
    2. Physics of Living Systems

    Stoichiometric interactions explain spindle dynamics and scaling across 100 million years of nematode evolution

    Reza Farhadifar et al.
    Stoichiometric interactions between microtubules and cortical force-generators set spindle size, position and dynamics, and its scaling with cell size in nematode species.
    1. Cell Biology
    2. Developmental Biology

    Optogenetic dissection of mitotic spindle positioning in vivo

    Lars-Eric Fielmich et al.
    New germline gene expression, knockout, and optogenetic tools reveal essential roles for Gα-GPR-1,2/Pins as a regulatable membrane anchor and LIN-5/NuMA as an activator of cortical dynein in mitotic spindle positioning.
    1. Cell Biology

    A two-step mechanism for the inactivation of microtubule organizing center function at the centrosome

    Jérémy Magescas et al.
    The microtubule organizing potential of the centrosome is inactivated in a stepwise process through phosphatase activity and mechanical disruption to remove an aging matrix of proteins.
    1. Cell Biology

    Cortical dynein pulling mechanism is regulated by differentially targeted attachment molecule Num1

    Safia Omer et al.
    Dynein-dependent microtubule-cortex interactions – "side-on" versus "end-on" pulling – are regulated by cortical ER and mediated by distinct pools of cortical anchor that are differentially localized along the cell periphery.
    1. Computational and Systems Biology

    Step-to-step variations in human running reveal how humans run without falling

    Nidhi Seethapathi, Manoj Srinivasan
    Natural step-to-step variations show how human running is stabilized, underscoring the importance of center of mass control and showing how humans run without falling despite muscle noise and uneven terrain.
    1. Cell Biology
    2. Physics of Living Systems

    Co-movement of astral microtubules, organelles and F-actin by dynein and actomyosin forces in frog egg cytoplasm

    James F Pelletier et al.
    Live imaging of multiple cytoplasmic networks in frog egg extracts calls for new models for how egg cytoplasm is physically organized during cleavage divisions.
    1. Structural Biology and Molecular Biophysics

    Limited dishevelled/Axin oligomerization determines efficiency of Wnt/β-catenin signal transduction

    Wei Kan et al.
    In vitro and in cellulo characterization of oligomerization by the cytoplasmic Wnt effector dishevelled and its partner Axin provide new mechanistic principles for Wnt/β-catenin signaling.
    1. Genetics and Genomics
    2. Neuroscience

    A single-cell transcriptomic atlas of the adult Drosophila ventral nerve cord

    Aaron M Allen et al.
    A single-cell atlas of the adult fly VNC charts the types and properties of cells for future studies of brain development and function.
    1. Structural Biology and Molecular Biophysics

    Cryo-EM structures and functional properties of CALHM channels of the human placenta

    Katarzyna Drożdżyk et al.
    Members of the calcium homeostasis modulator family expressed in the placenta form large channels with unknown activation properties that harbor a lipid bilayer on the inside of a cylindrical pore.

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