2,821 results found
    1. Evolutionary Biology

    Decreased recent adaptation at human mendelian disease genes as a possible consequence of interference between advantageous and deleterious variants

    Chenlu Di, Jesus Murga Moreno ... David Enard
    Harmful genetic variants at mendelian disease genes slow down adaptation, by interfering with the spread of adaptive variants in a population.
    1. Computational and Systems Biology
    2. Neuroscience

    Endotaxis: A neuromorphic algorithm for mapping, goal-learning, navigation, and patrolling

    Tony Zhang, Matthew Rosenberg ... Markus Meister
    A neural circuit model reveals how biological brains may implement rapid learning and navigation in complex spaces.
    1. Structural Biology and Molecular Biophysics

    Cadherin clusters stabilized by a combination of specific and nonspecific cis-interactions

    Connor J Thompson, Zhaoqian Su ... Daniel K Schwartz
    A combined experimental and computational approach was developed to understand lateral interactions between membrane-bound proteins and used to quantify the contributions of specific and non-specific interactions to cadherin cis-binding kinetics.
    1. Neuroscience

    Nucleus accumbens dopamine tracks aversive stimulus duration and prediction but not value or prediction error

    Jessica N Goedhoop, Bastijn JG van den Boom ... Ingo Willuhn
    The extracellular concentration of dopamine in the nucleus accumbens core is progressively diminished by white noise, an underutilized, easy-to-titrate aversive stimulus, but is unaffected by white-noise intensity, context valence, and associated probabilistic contingencies.
    1. Neuroscience

    Taste quality and hunger interactions in a feeding sensorimotor circuit

    Philip K Shiu, Gabriella R Sterne ... Kristin Scott
    Gustatory information and hunger state impinge on a local, multilayered circuit that drives feeding initiation.
    1. Developmental Biology

    Kinetics of blood cell differentiation during hematopoiesis revealed by quantitative long-term live imaging

    Kevin Yueh Lin Ho, Rosalyn Leigh Carr ... Guy Tanentzapf
    A long-term multi-organ co-culture system coupled with quantitative imaging to visualize blood cell cycle progression, analyze polarized blood cell mitosis, and track blood cell differentiation kinetics during Drosophila hematopoiesis in homeostatic condition and following infection.
    1. Chromosomes and Gene Expression

    Noncoding RNA-nucleated heterochromatin spreading is intrinsically labile and requires accessory elements for epigenetic stability

    R A Greenstein, Stephen K Jones ... Bassem Al-Sady
    Heterochromatin spreading in fission yeast predominantly produces intergenerationally unstable outcomes, requiring an accessory element that represses histone turnover.
    1. Neuroscience
    2. Physics of Living Systems

    Nested mechanosensory feedback actively damps visually guided head movements in Drosophila

    Benjamin Cellini, Jean-Michel Mongeau
    Motor context and mechanosensory feedback together influence how flies control head movements during visually guided flight maneuvers.
    1. Neuroscience
    2. Structural Biology and Molecular Biophysics

    Kv2.1 mediates spatial and functional coupling of L-type calcium channels and ryanodine receptors in mammalian neurons

    Nicholas C Vierra, Michael Kirmiz ... James S Trimmer
    A potassium channel, as a nonconducting function, organizes compartmentalized neuronal calcium signaling microdomains via structural and functional coupling of plasma membrane and endoplasmic reticulum calcium channels.
    1. Microbiology and Infectious Disease

    Distinct cytoskeletal proteins define zones of enhanced cell wall synthesis in Helicobacter pylori

    Jennifer A Taylor, Benjamin P Bratton ... Nina R Salama
    The helical bacterium Helicobacter pylori patterns cell wall synthesis using two distinct cytoskeletal proteins, CcmA and MreB, to achieve its characteristic shape.

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