14 results found
    1. Physics of Living Systems
    2. Structural Biology and Molecular Biophysics

    Dynamic metastable long-living droplets formed by sticker-spacer proteins

    Srivastav Ranganathan, Eugene I Shakhnovich
    Multi-scale simulations reveal a potential, ATP-independent mechanism resulting in the formation of the long-living multi-droplet state by multi-valent, spacer-sticker proteins.
    1. Physics of Living Systems
    2. Structural Biology and Molecular Biophysics

    Phase Separation: Restricting the sizes of condensates

    Furqan Dar, Rohit Pappu
    Computer simulations of model proteins with sticker-and-spacer architectures shed light on the formation of biomolecular condensates in cells.
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    1. Neuroscience

    A theory of working memory without consciousness or sustained activity

    Darinka Trübutschek et al.
    Visual information can be maintained in non-conscious working memory for several seconds via short-term changes in synaptic weights.
    1. Neuroscience
    2. Physics of Living Systems

    Binocular rivalry reveals an out-of-equilibrium neural dynamics suited for decision-making

    Robin Cao et al.
    The statistics of binocular rivalry at different combinations of image contrast is reproduced quantitatively by competing out-of-equilibrium populations of independent neural assemblies with idealized attractor dynamics.
    1. Biochemistry and Chemical Biology

    HspB8 prevents aberrant phase transitions of FUS by chaperoning its folded RNA-binding domain

    Edgar E Boczek et al.
    Quantitative time-resolved crosslinking mass spectrometry is developed to monitor protein interactions and dynamics inside molecular condensates and used to identify misfolding of the RNA-binding domain of FUS as a key driver of condensate-aging.
    1. Structural Biology and Molecular Biophysics

    Structure and dynamics underlying elementary ligand binding events in human pacemaking channels

    Marcel P Goldschen-Ohm et al.
    Single-molecule resolution of cAMP binding to the ligand binding domain of pacemaking channels in zero-mode waveguides reveals the dynamics of the distinct steps underlying both binding and isomerization of the binding domain.
    1. Cell Biology
    2. Structural Biology and Molecular Biophysics

    The solubility product extends the buffering concept to heterotypic biomolecular condensates

    Aniruddha Chattaraj et al.
    The solubility product, a thermodynamic concept classically applied to poorly soluble ionic solutes, can rationalize the concentration dependence for liquid-liquid phase separation of multicomponent multivalent molecules.
    1. Computational and Systems Biology
    2. Neuroscience

    Exploratory search during directed navigation in C. elegans and Drosophila larva

    Mason Klein et al.
    Crawling Drosophila larvae and C. elegans exhibit diffusive behavior alongside directed motion, and the dynamics of this navigation can be analyzed with techniques developed in understanding protein folding, using a Markov state model.
    1. Physics of Living Systems
    2. Computational and Systems Biology

    Many-molecule encapsulation by an icosahedral shell

    Jason D Perlmutter et al.
    Computational and theoretical models reveal mechanisms by which protein compartments assemble around enzymes and reagents to facilitate reactions in bacteria, allowing the identification of strategies for reengineering such compartments as customizable nanoreactors.
    1. Cell Biology
    2. Physics of Living Systems

    Centering and symmetry breaking in confined contracting actomyosin networks

    Niv Ierushalmi et al.
    Novel mechanisms for cellular centering and symmetry breaking involving persistent contractile actomyosin flows and their hydrodynamic interactions with the fluid cytosol are presented and studied using a minimal, reconstituted system.

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