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    1. Physics of Living Systems

    Single molecule microscopy reveals key physical features of repair foci in living cells

    Judith Miné-Hattab et al.
    Upon DNA damage, Rad52 forms a membraneless sub-compartment where Rad52 molecules are highly dynamic and share properties with liquid-liquid phase-separated molecules, reflecting the existence of a liquid droplet around damaged DNA.
    1. Cancer Biology
    2. Physics of Living Systems

    Membrane interactions of the globular domain and the hypervariable region of KRAS4b define its unique diffusion behavior

    Debanjan Goswami et al.
    Compared to other isoforms of RAS, KRAS4b has unique membrane diffusion behavior related to its biology, and the two major domains of the protein both contribute to this diffusion behavior.
    1. Neuroscience

    Astrocyte morphology is confined by cortical functional boundaries in mammals ranging from mice to human

    Raya Eilam et al.
    The structural morphology of astrocyte processes is constrained by functional boundaries in the mouse, rat and human cortex.
    1. Cell Biology

    Erk regulation of actin capping and bundling by Eps8 promotes cortex tension and leader bleb-based migration

    Jeremy S Logue et al.
    Eps8, a specific effector of oncogenic signaling, organizes the cortical actin cytoskeleton of cancer cells to promote mechanical properties that favor a newly identified mode of confined, adhesion-independent cell migration.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Measuring protein stability in the GroEL chaperonin cage reveals massive destabilization

    Ilia Korobko et al.
    Protein stability in the cage formed by the chaperonin GroEL and its cofactor GroES is reduced by more than 5 kcal mol-1 relative to that in bulk solution.
    1. Chromosomes and Gene Expression
    2. Genetics and Genomics

    Live-cell single-molecule tracking highlights requirements for stable Smc5/6 chromatin association in vivo

    Thomas J Etheridge et al.
    In vivo single-molecule imaging demonstrates that Smc5/6 chromatin association depends on ATP hydrolysis and dsDNA binding, requires Nse6 and is modulated by Brc1 after DNA damage.
    1. Cell Biology

    Cytokinesis in vertebrate cells initiates by contraction of an equatorial actomyosin network composed of randomly oriented filaments

    Felix Spira et al.
    Asymmetric tension increase along the cell equator promotes self-organization of actomyosin into a partially aligned network during cytokinetic cleavage furrow ingression of vertebrate cells.
    1. Developmental Biology

    Primed Track, high-fidelity lineage tracing in mouse pre-implantation embryos using primed conversion of photoconvertible proteins

    Maaike Welling et al.
    Primed Track is an image analysis tool that allows for computational correction of drifting specimen to enable accurate lineage tracing of mammalian pre-implantation development even for larger imaging time intervals.
    1. Cell Biology
    2. Immunology and Inflammation

    Intermittent Ca2+ signals mediated by Orai1 regulate basal T cell motility

    Tobias X Dong et al.
    Orai1 channels activate intermittently in motile T cells, generating calcium transients, detected by a novel genetically encoded indicator and inducing pauses that favor antigen scanning.
    1. Neuroscience

    Cellular resolution circuit mapping with temporal-focused excitation of soma-targeted channelrhodopsin

    Christopher A Baker et al.
    Combining spatial restriction of channelrhodopsin to the neuronal cell body with two photon excitation and calcium imaging will enable production of high resolution maps of neural circuitry.