935 results found
    1. Physics of Living Systems

    Distinct contributions of the thin and thick filaments to length-dependent activation in heart muscle

    Xuemeng Zhang et al.
    The Frank–Starling law of the heart and its underlying mechanism of length-dependent activation involve distinctive structural changes in both the thin and thick filaments of cardiac muscle cells.
    1. Cell Biology
    2. Developmental Biology

    The Drosophila formin Fhos is a primary mediator of sarcomeric thin-filament array assembly

    Arkadi Shwartz et al.
    Actin is incorporated into the thin-filament arrays of skeletal muscle sarcomeres in discrete steps, and Fhos, the Drosophila homolog of FHOD-family formins, is an essential player in the process.
    1. Computational and Systems Biology

    Active contraction of microtubule networks

    Peter J Foster et al.
    Microtubule networks in frog egg extracts can spontaneously contract in a manner that can be quantitatively described by an active fluid model.
    1. Structural Biology and Molecular Biophysics
    2. Microbiology and Infectious Disease

    Bacterial flagella grow through an injection-diffusion mechanism

    Thibaud T Renault et al.
    Single cell, fluorescent microscopy and mathematical modeling reveal how bacterial flagella dynamically assemble outside the cell.
    1. Microbiology and Infectious Disease

    MreB filaments align along greatest principal membrane curvature to orient cell wall synthesis

    Saman Hussain et al.
    MreB filaments bind, orient, and move along the direction of greatest membrane curvature, thus orienting the insertion of new glycan strands around the cell circumference in a manner that may help establish and maintain rod shape.
    1. Cell Biology

    DNA damage induces nuclear actin filament assembly by Formin-2 and Spire-1/2 that promotes efficient DNA repair

    Brittany J Belin et al.
    An efficient response to DNA damage requires the assembly of actin filaments in the nucleus.
    1. Structural Biology and Molecular Biophysics

    Myosin motors fragment and compact membrane-bound actin filaments

    Sven K Vogel et al.
    A combination of single-molecule imaging and an in vitro model of the cell cortex has allowed the interactions between actin filaments and filaments made of myosin II to be studied in detail.
    1. Cell Biology

    A novel mode of capping protein-regulation by twinfilin

    Adam B Johnston et al.
    Twinfilin functions as a pro-capping ligand of capping protein, dynamically competing with inhibitory ligands of capping proteinto control cellular actin assembly.
    1. Cell Biology
    2. Structural Biology and Molecular Biophysics

    Molecular mechanism for direct actin force-sensing by α-catenin

    Lin Mei et al.
    Biophysical and structural studies reveal how low piconewton forces across actin enhance binding by the critical cell-cell adhesion protein α-catenin versus its force insensitive homolog vinculin.
    1. Cell Biology

    Structure of cellular ESCRT-III spirals and their relationship to HIV budding

    Anil G Cashikar et al.
    Electron microscopy on native membranes reveals the shape and potential function of protein machinery responsible for budding vesicles and viruses away from the cytoplasm.

Refine your results by:

Type
Research categories