1,973 results found
    1. Microbiology and Infectious Disease

    Pathogen clonal expansion underlies multiorgan dissemination and organ-specific outcomes during murine systemic infection

    Karthik Hullahalli, Matthew K Waldor
    During Escherichia coli systemic infection, the replication of a minuscule fraction of the inoculum drives organ-specific clearance failures, systemic dissemination, and stochastic infection outcomes.
    1. Biochemistry and Chemical Biology
    2. Chromosomes and Gene Expression

    Competitive binding of MatP and topoisomerase IV to the MukB hinge domain

    Gemma LM Fisher et al.
    Topoisomerase IV and the ter-binding protein MatP competitively bind the hinge domain of the Escherichia coli Structural Maintenance of Chromosomes complex, MukB, leading to spatiotemporal regulation of MukBEF-topoisomerase IV activity.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    The cooperative binding of TDP-43 to GU-rich RNA repeats antagonizes TDP-43 aggregation

    Juan Carlos Rengifo-Gonzalez et al.
    The RNA-mediated higher order assembly of TDP-43, a protein associated with neurodegenerative diseases, preserves its solubility by reducing the risk of multivalent interactions between low complexity domains.
    1. Biochemistry and Chemical Biology
    2. Cell Biology

    Quantitative proteomics reveals the selectivity of ubiquitin-binding autophagy receptors in the turnover of damaged lysosomes by lysophagy

    Vinay V Eapen et al.
    A combination of spatial proteomic and autophagic flux approaches was used to reveal the landscape of turnover of damaged lysosomes, demonstrating a key role for the autophagy receptor TAX1BP1 and its associated kinase TBK1 in both HeLa cells and iNeurons.
    1. Cell Biology
    2. Neuroscience

    TRPM7 is critical for short-term synaptic depression by regulating synaptic vesicle endocytosis

    Zhong-Jiao Jiang et al.
    Electrophysiological and live-cell imaging analyses identify a presynaptic function of Ca2+ influx via transient receptor potential melastatin 7 (TRPM7) channels.
    1. Genetics and Genomics

    The transcription factor Xrp1 is required for PERK-mediated antioxidant gene induction in Drosophila

    Brian Brown et al.
    The transcription factor Xrp1 mediates a previously unrecognized branch of stress-response signaling, specifically as a downstream effector of eIF2alpha kinases.
    1. Neuroscience
    2. Structural Biology and Molecular Biophysics

    Mutational analysis to explore long-range allosteric couplings involved in a pentameric channel receptor pre-activation and activation

    Solène N Lefebvre et al.
    A pentameric channel-receptor was studied by combining allosteric mutations, electrophysiology, fluorescent reporters and normal mode analysis, to dissect the long-range allosteric couplings specifically involved in its pre-activation and activation.
    1. Plant Biology

    SUMOylation contributes to proteostasis of the chloroplast protein import receptor TOC159 during early development

    Sonia Accossato et al.
    SUMOylation contributes to the fine-tuning of the proteostatic equilibrium of essential chloroplast protein import receptor TOC159 at early plant development.
    1. Evolutionary Biology
    2. Genetics and Genomics

    A modified fluctuation assay reveals a natural mutator phenotype that drives mutation spectrum variation within Saccharomyces cerevisiae

    Pengyao Jiang et al.
    Certain mutational signatures vary in their contribution to genetic variation across the yeast phylogeny due to genetically encoded natural mutator phenotypes whose activity can be directly measured in the lab.
    1. Cell Biology

    Ectocytosis prevents accumulation of ciliary cargo in C. elegans sensory neurons

    Adria Razzauti, Patrick Laurent
    Disposal of ciliary proteins via ectosomes budding from cilia tip or cilia base acts as a safeguard mechanism when cilia trafficking functions are impaired.

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