29 results found
    1. Biochemistry and Chemical Biology
    2. Cell Biology

    The vacuolar-ATPase complex and assembly factors, TMEM199 and CCDC115, control HIF1α prolyl hydroxylation by regulating cellular iron levels

    Anna L Miles et al.
    An unbiased genome-wide human forward genetic screen identifies the vacuolar ATPase complex and assembly factors as regulators of HIF stability through their actions on intracellular iron metabolism.
    1. Cell Biology

    The step-wise pathway of septin hetero-octamer assembly in budding yeast

    Andrew Weems, Michael McMurray
    In budding yeast cells, slow monomeric septin GTPase activity and the cytosolic GTP:GDP ratio dictate the relative incorporation of alternative subunits during septin hetero-oligomer assembly, which proceeds by discrete, ordered steps dependent on allostery between interaction interfaces.
    1. Biochemistry and Chemical Biology
    2. Cell Biology

    Extensive cargo identification reveals distinct biological roles of the 12 importin pathways

    Makoto Kimura et al.
    Transport-based high-throughput identification of cargo proteins specific to all 12 human importin-β family nuclear import receptors revealed biological processes that the cargo cohorts of each receptor are involved in.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    The role of Cdc42 and Gic1 in the regulation of septin filament formation and dissociation

    Yashar Sadian et al.
    Imaging with electron microscopy and cryo-electron tomography reveals that competition between Cdc42 and Gic1 for the same subunit within septins controls the formation and breakdown of septin filaments.
    1. Cell Biology

    Genome-wide interrogation of extracellular vesicle biology using barcoded miRNAs

    Albert Lu et al.
    A screen using artificially barcoded, exosomal microRNAs, paired with CRISPR guide RNAs, helped identify new players in multivesicular endosome exocytosis and a role for Wnt signaling.
    1. Cell Biology

    The Mitotic Exit Network integrates temporal and spatial signals by distributing regulation across multiple components

    Ian Winsten Campbell et al.
    By distributing regulation to both the GTPase and downstream kinases, the Mitotic Exit Network creates a single signal from spatial and temporal inputs.
    1. Biochemistry and Chemical Biology
    2. Human Biology and Medicine

    Unexpected similarities between C9ORF72 and sporadic forms of ALS/FTD suggest a common disease mechanism

    Erin G Conlon et al.
    Idiopathic patients along a complex motor neuron disease-dementia spectrum exhibit mRNA splicing changes that are due to multi-protein insolubility.
    1. Chromosomes and Gene Expression

    Tissue damage drives co-localization of NF-κB, Smad3, and Nrf2 to direct Rev-erb sensitive wound repair in mouse macrophages

    Dawn Z Eichenfield et al.
    Combinatorial signaling leads to transcription factor co-localization at Rev-erb sensitive enhancers, enabling a diversified cellular response to complex stimuli.
    1. Cell Biology
    2. Immunology and Inflammation

    Acute exposure to apolipoprotein A1 inhibits macrophage chemotaxis in vitro and monocyte recruitment in vivo

    Asif J Iqbal et al.
    Mechanistic insights show how treatment with apoA1 is anti-inflammatory by rapidly disrupting macrophage chemotaxis and monocyte recruitment.
    1. Biochemistry and Chemical Biology
    2. Cell Biology

    INAVA-ARNO complexes bridge mucosal barrier function with inflammatory signaling

    Phi Luong et al.
    Inflammatory bowel disease risk-gene, INAVA and the ARF-GEF ARNO, regulates non-canonical cortical actin assembly and IL-1b signaling to maintain epithelial homeostasis.

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