4,092 results found
    1. Structural Biology and Molecular Biophysics
    2. Developmental Biology

    Drosophila Nanos acts as a molecular clamp that modulates the RNA-binding and repression activities of Pumilio

    Chase A Weidmann, Chen Qiu ... Aaron C Goldstrohm
    Crystal structures of Nanos bound to Pumilio and target RNAs demonstrate how Nanos forms a molecular clamp to alter Pumilio RNA regulation and specificity in embryonic development and germline maintenance.
    1. Developmental Biology

    Glucocorticoid receptor-PPARα axis in fetal mouse liver prepares neonates for milk lipid catabolism

    Gianpaolo Rando, Chek Kun Tan ... Walter Wahli
    Glucocorticoid receptor directly regulates the transcriptional activity of peroxisome proliferator-activated alpha (PPARα) before birth in anticipation of the sudden shifts in the postnatal nutrient source and metabolic demands.
    1. Evolutionary Biology

    New fossil remains of Homo naledi from the Lesedi Chamber, South Africa

    John Hawks, Marina Elliott ... Lee R Berger
    The discovery of new skeletal remains of Homo naledi in the Lesedi Chamber, South Africa, adds more evidence to our understanding of the morphology and behavior of this recently discovered species.
    1. Neuroscience

    Distinct population code for movement kinematics and changes of ongoing movements in human subthalamic nucleus

    Dennis London, Arash Fazl ... Roozbeh Kiani
    Subthalamic nucleus spiking activity, beta oscillation power, and locking of spikes to the beta oscillation are decreased prior to changes in ongoing movements.
    1. Neuroscience

    Learning accurate path integration in ring attractor models of the head direction system

    Pantelis Vafidis, David Owald ... Richard Kempter
    A theoretical model combines self-supervised predictive learning with structural inductive biases to reveal how quasi-continuous attractors that perform accurate angular path integration can be learned from experience during development in the Drosophila and potentially other animal models.
    1. Microbiology and Infectious Disease

    Fitness advantage of Bacteroides thetaiotaomicron capsular polysaccharide in the mouse gut depends on the resident microbiota

    Daniel Hoces, Giorgia Greter ... Emma Slack
    Neutral tagging and detailed analysis of bacterial growth kinetics can quantify the mechanisms of colonization resistance in differently colonized animals.
    1. Evolutionary Biology
    2. Genetics and Genomics

    Archaic introgression contributed to shape the adaptive modulation of angiogenesis and cardiovascular traits in human high-altitude populations from the Himalayas

    Giulia Ferraretti, Paolo Abondio ... Marco Sazzini
    A combination of composite-likelihood and gene network-based methods to investigate the impact of Denisovan introgression on the evolution of complex (i.e., polygenic) adaptive traits in high-altitude populations of Tibetan/Sherpa ancestry.
    1. Genetics and Genomics

    Sequence features of retrotransposons allow for epigenetic variability

    Kevin R Costello, Amy Leung ... Dustin E Schones
    Variably methylated retrotransposons have an underlying sequence that allows them to escape KAP1-mediated silencing and recruit ZF-CxxC proteins.
    1. Neuroscience

    Rapid learning of predictive maps with STDP and theta phase precession

    Tom M George, William de Cothi ... Caswell Barry
    A close approximation to the successor representation is learnt by a simple spike-time-dependent learning rule between cells undergoing theta phase precession.
    1. Neuroscience

    The stability of the primed pool of synaptic vesicles and the clamping of spontaneous neurotransmitter release rely on the integrity of the C-terminal half of the SNARE domain of syntaxin-1A

    Andrea Salazar Lázaro, Thorsten Trimbuch ... Christian Rosenmund
    Structure–function studies on the synaptic vesicle release protein syntaxin-1 identified structural motifs on the surface of the SNARE complex controlling vesicle priming and spontaneous release unique for synaptic signaling.

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