3,647 results found
    1. Physics of Living Systems

    Emergence of alternative stable states in gene exchange communities

    Juken Hong, Wenzhi Xue, Teng Wang
    Not revised
    Reviewed Preprint v1
    1. Computational and Systems Biology
    2. Physics of Living Systems

    Phenotypic states become increasingly sensitive to perturbations near a bifurcation in a synthetic gene network

    Kevin Axelrod, Alvaro Sanchez, Jeff Gore
    Perturbations in the extracellular environment drive transitions from a highly stable memory state to an alternative phenotype in microorganisms.
    1. Ecology
    2. Evolutionary Biology

    Wide-ranging consequences of priority effects governed by an overarching factor

    Callie R Chappell, Manpreet K Dhami ... Tadashi Fukami
    Analysis of microbial communities in floral nectar shows that it is possible to identify an overarching factor that governs the eco-evolutionary dynamics of priority effects across multiple levels of biological organization.
    1. Ecology

    Multistability and regime shifts in microbial communities explained by competition for essential nutrients

    Veronika Dubinkina, Yulia Fridman ... Sergei Maslov
    Multistability and regime shifts are common and species diversity is high in microbial communities when nutrient supplies are balanced and competing species have different stoichiometries of essential nutrients.
    1. Neuroscience

    A neural circuit for flexible control of persistent behavioral states

    Ni Ji, Gurrein K Madan ... Steven W Flavell
    Circuit-wide calcium imaging during C. elegans foraging elucidates the functional architecture of a neural circuit controlling the choice between two alternative behavioral states.
    1. Structural Biology and Molecular Biophysics

    Ligand binding remodels protein side-chain conformational heterogeneity

    Stephanie A Wankowicz, Saulo H de Oliveira ... James S Fraser
    Protein conformational heterogeneity changes upon ligand binding are influenced by ligand properties and can modulate the free energy of binding.
    1. Structural Biology and Molecular Biophysics
    2. Computational and Systems Biology

    A dynamic mechanism for allosteric activation of Aurora kinase A by activation loop phosphorylation

    Emily F Ruff, Joseph M Muretta ... Nicholas M Levinson
    Phosphorylation of Aurora A does not trigger a population shift to the active state as previously thought, but instead switches the kinase on by tuning the structure and dynamics of a dynamically sampled subpopulation.
    1. Biochemistry and Chemical Biology

    Structural basis for AcrVA4 inhibition of specific CRISPR-Cas12a

    Gavin J Knott, Brady F Cress ... Jennifer A Doudna
    An ancestral helical bundle governs whether the crRNA-processing nuclease of CRISPR-Cas12a is exploited by a phage-encoded allosteric anti-CRISPR.
    1. Neuroscience

    Inhibitory control of frontal metastability sets the temporal signature of cognition

    Vincent Fontanier, Matthieu Sarazin ... Emmanuel Procyk
    Single unit recordings in monkeys and biophysical modelling demonstrate that local inhibitory-controlled metastable neural states specify the temporal organization of cognitive functions in frontal areas.
    1. Evolutionary Biology

    The Jurassic rise of squamates as supported by lepidosaur disparity and evolutionary rates

    Arnau Bolet, Thomas L Stubbs ... Michael J Benton
    Evidence for a largely unexplored radiation of squamates (lizards, snakes, and amphisbaenians) in the Middle to Late Jurassic is revealed by analyses of morphospace expansion, disparity, and evolutionary rates.

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