1,342 results found
  1. October 2013

    Episode 5: October 2013

    In this episode we hear about how chimpanzees use conceptual metaphors, hyperactive sperm, the use of bacteria to estimate the time of death, stem cells and smoking, and a new type of bacteria.
  2. Executable Research Articles

    Edited by Fred Atherden
    eLife’s Executable Research Article lets authors include live code, data and interactive figures in their published paper.
    1. Neuroscience

    Canonical goal-selective representations are absent from prefrontal cortex in a spatial working memory task requiring behavioral flexibility

    Claudia Böhm, Albert K Lee
    Representation of goals in the forms previously reported in the PFC is not required for performance of a novel spatial working memory task where goal information must be used flexibly.
    1. Computational and Systems Biology
    2. Evolutionary Biology

    A community-maintained standard library of population genetic models

    Jeffrey R Adrion et al.
    The stdpopsim library, a community-driven open source project, is presented which provides easy access to a standard catalog of published simulation models for population genetics aimed at field-wide standardization.
    1. Neuroscience

    Exercise-induced enhancement of synaptic function triggered by the inverse BAR protein, Mtss1L

    Christina Chatzi et al.
    Single episodes of voluntary exercise induced a functional increase in hippocampal synapses mediated by activity-dependent expression of the BAR protein Mtss1L, acting as a novel early effector of synapse formation.
    1. Computational and Systems Biology

    RNA polymerase errors cause splicing defects and can be regulated by differential expression of RNA polymerase subunits

    Lucas B Carey
    A single human cell makes 10-100 transcriptional errors per second; these errors affect splicing and may influence the evolution of coding sequences.
    1. Chromosomes and Gene Expression

    A CTP-dependent gating mechanism enables ParB spreading on DNA

    Adam SB Jalal et al.
    A structural and biochemical approach shows that CTP binding and hydrolysis regulate nucleation, spreading, and recycling of a chromosome segregation protein ParB.
    1. Biochemistry and Chemical Biology

    Underground isoleucine biosynthesis pathways in E. coli

    Charles AR Cotton et al.
    Upon deletion of threonine deaminases, biosynthesis of isoleucine is rescued by two promiscuous reactions, one emerges under aerobic conditions and the other is naturally active under anaerobic conditions.
    1. Chromosomes and Gene Expression
    2. Computational and Systems Biology

    Pooled genome-wide CRISPR screening for basal and context-specific fitness gene essentiality in Drosophila cells

    Raghuvir Viswanatha et al.
    Pooled CRISPR knockout screening in Drosophila cells enables high-resolution, genome-wide functional genomic comparisons in cell-lines across vast evolutionary distance.
    1. Cell Biology

    Elimination of paternal mitochondria in mouse embryos occurs through autophagic degradation dependent on PARKIN and MUL1

    Rebecca Rojansky et al.
    The uniparental inheritance of mammalian mitochondria results from elimination of paternal mitochondria by a mitophagic process that requires the E3 ubiquitin ligases PARKIN and MUL1.

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