533 results found
    1. Cell Biology

    Uncoupling of dynamin polymerization and GTPase activity revealed by the conformation-specific nanobody dynab

    Valentina Galli et al.
    Uncoupling of dynamin polymerization and GTPase activity can be induced with dynamin, which allows in vivo visualization of its activity at endocytic pits.
    1. Cell Biology

    Waves of actin and microtubule polymerization drive microtubule-based transport and neurite growth before single axon formation

    Amy M Winans et al.
    Waves of polymerizing actin work in concert with microtubule polymerization to lay down more microtubules tracks and transiently increase microtubule-based transport into the growing neurite.
    1. Structural Biology and Molecular Biophysics
    2. Cell Biology

    Motility and microtubule depolymerization mechanisms of the Kinesin-8 motor, KIF19A

    Doudou Wang et al.
    The structural and functional analysis demonstrates the mechanism of dual functional, motility and microtubule depolymerization in a unique motor, KIF19A.
    1. Biochemistry and Chemical Biology

    Nonenzymatic copying of RNA templates containing all four letters is catalyzed by activated oligonucleotides

    Noam Prywes et al.
    Nonenzymatic polymerization can copy templates containing all four RNA monomers, a prerequisite for the transition to the RNA world.
    1. Physics of Living Systems
    2. Cell Biology

    Phase transitions of multivalent proteins can promote clustering of membrane receptors

    Sudeep Banjade, Michael K Rosen
    A new and general mechanism describes the organization of membrane proteins and their cytoplasmic ligands into micrometer-scale clusters, based on polymerization and concomitant phase separation of multivalent proteins.
    1. Structural Biology and Molecular Biophysics
    2. Cell Biology

    Kinesin Kip2 enhances microtubule growth in vitro through length-dependent feedback on polymerization and catastrophe

    Anneke Hibbel et al.
    The budding yeast kinesin Kip2 is a polymerase that uses its processive motility in a positive feedback loop to promote microtubule growth.
    1. Cell Biology

    Type-I myosins promote actin polymerization to drive membrane bending in endocytosis

    Hetty E Manenschijn et al.
    Monomeric myosins can stimulate growth of actin filaments under load.
    1. Computational and Systems Biology
    2. Developmental Biology

    Tuned polymerization of the transcription factor Yan limits off-DNA sequestration to confer context-specific repression

    C Matthew Hope et al.
    Tuned protein–protein interaction affinity optimizes the repressive function of the ETS family transcription factor Yan in order to contribute specificity and robustness to cell fate specification in the developing Drosophila eye.
    1. Neuroscience

    Capillary pericytes express α-smooth muscle actin, which requires prevention of filamentous-actin depolymerization for detection

    Luis Alarcon-Martinez et al.
    Pericytes surrounding capillaries in the retina contain α-smooth muscle actin, demonstrating that pericytes have the necessary molecular machinery to change capillary diameter during neurovascular coupling.
    1. Neuroscience

    Palmitoylation of LIM Kinase-1 ensures spine-specific actin polymerization and morphological plasticity

    Joju George et al.
    The protein-lipid modification palmitoylation targets the kinase LIMK1 to dendritic spines to ensure precise control of the size of individual spines in response to synaptic activation.

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