2,299 results found
    1. Immunology and Inflammation
    2. Microbiology and Infectious Disease

    Pathogen infection and cholesterol deficiency activate the C. elegans p38 immune pathway through a TIR-1/SARM1 phase transition

    Nicholas D Peterson, Janneke D Icso ... Read Pukkila-Worley
    A phase transition of TIR-1/SARM1 induced by either pathogen or non-pathogen stress potentiates its intrinsic NADase activity, which activates the p38 PMK-1 signaling cascade to induce protective immune defenses in Caenorhabditis elegans intestinal epithelial cells.
    1. Neuroscience

    TIR-1/SARM1 inhibits axon regeneration and promotes axon degeneration

    Victoria L Czech, Lauren C O'Connor ... Alexandra B Byrne
    TIR-1 regulates both repair and destruction on either side of an injury axon.
    1. Developmental Biology
    2. Plant Biology

    Genetic analysis of the Arabidopsis TIR1/AFB auxin receptors reveals both overlapping and specialized functions

    Michael J Prigge, Matthieu Platre ... Mark Estelle
    Genetic analyses reveal that the TIR1/AFB auxin receptors have broadly overlapping functions throughout plant development, but that the AFB1 receptor has a specialized role in a rapid auxin response.
    1. Cell Biology
    2. Structural Biology and Molecular Biophysics

    Molecular mechanism for direct actin force-sensing by α-catenin

    Lin Mei, Santiago Espinosa de los Reyes ... Gregory M Alushin
    Biophysical and structural studies reveal how low piconewton forces across actin enhance binding by the critical cell-cell adhesion protein α-catenin versus its force insensitive homolog vinculin.
    1. Immunology and Inflammation
    2. Microbiology and Infectious Disease

    Activation of Toll-like receptors nucleates assembly of the MyDDosome signaling hub

    Sarah Louise Latty, Jiro Sakai ... Clare E Bryant
    The strength of Toll-like receptor signalling depends on the number and size of MyDDosomes formed as well as on how quickly these structures assemble.
    1. Cell Biology
    2. Plant Biology

    TIR1/AFB-Aux/IAA auxin perception mediates rapid cell wall acidification and growth of Arabidopsis hypocotyls

    Matyáš Fendrych, Jeffrey Leung, Jiří Friml
    The nuclear pathway for auxin perception is responsible for the rapid auxin-induced cell wall acidification and growth of aerial organs of plants.
    1. Immunology and Inflammation
    2. Microbiology and Infectious Disease

    DNA-PK is a DNA sensor for IRF-3-dependent innate immunity

    Brian J Ferguson, Daniel S Mansur ... Geoffrey L Smith
    Experiments in mice have shown than an enzyme that repairs broken DNA inside the nucleus also has a central role in the innate immune system because it is able to detect foreign DNA outside the nucleus.
    1. Cell Biology

    Functional hierarchy among different Rab27 effectors involved in secretory granule exocytosis

    Kunli Zhao, Kohichi Matsunaga ... Tetsuro Izumi
    TIRF microscopy in living pancreatic beta cells lacking one or two of Rab27 effectors and the exocyst components reveals how each molecule functions in sequence or in parallel in multiple redundant paths and rate-limiting processes in granule exocytosis.
    1. Physics of Living Systems
    2. Cell Biology

    Side-binding proteins modulate actin filament dynamics

    Alvaro H Crevenna, Marcelino Arciniega ... Don C Lamb
    The kinetics of actin polymerization are strongly influenced by the binding of proteins to the lateral filament surface.
    1. Chromosomes and Gene Expression
    2. Structural Biology and Molecular Biophysics

    ParB dynamics and the critical role of the CTD in DNA condensation unveiled by combined force-fluorescence measurements

    Julene Madariaga-Marcos, Cesar L Pastrana ... Fernando Moreno-Herrero
    A single-molecule biophysical approach reveals that the C-terminal domain of ParB blocks ParB network formation by heterodimerization with the full-length protein, which remains bound to the DNA.

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