52 results found
    1. Microbiology and Infectious Disease

    Brucella activates the host RIDD pathway to subvert BLOS1-directed immune defense

    Kelsey Michelle Wells, Kai He ... Paul de Figueiredo
    Brucella facilitates its intracellular parasitism by hijacking the host-regulated IRE1α-dependent decay (RIDD)-BLOS1 innate immune defense system through the disassembly of the BLOC-1-related complex that results in the perinuclear trafficking of Brucella-containing vacuoles and enhanced susceptibility to infection.
    1. Cell Biology

    BLOS1 mediates kinesin switch during endosomal recycling of LDL receptor

    Chang Zhang, Chanjuan Hao ... Wei Li
    BLOS1 is a new regulator of LDLR endosomal recycling through coordinating kinesins during long-range transport, and depletion of BLOS1 in mouse liver leads to aberrant lipid metabolism.
    1. Cell Biology
    2. Stem Cells and Regenerative Medicine

    BLOS2 negatively regulates Notch signaling during neural and hematopoietic stem and progenitor cell development

    Wenwen Zhou, Qiuping He ... Wei Li
    The conserved mechanism of Notch down-regulation by endo-lysosomal trafficking plays important roles in the proliferation and differentiation of stem and progenitor cells during embryogenesis or organogenesis in vertebrates.
    1. Cell Biology

    The Uso1 globular head interacts with SNAREs to maintain viability even in the absence of the coiled-coil domain

    Ignacio Bravo-Plaza, Victor G Tagua ... Miguel A Peñalva
    Uso1 critically regulating traffic in the ER/Golgi interface is a coiled-coil protein traditionally regarded as a tether, but a forward genetic screen revealed that its essential role appears to involve its ability to interact with SNAREs.
    1. Chromosomes and Gene Expression

    Gle1 is required for tRNA to stimulate Dbp5 ATPase activity in vitro and promote Dbp5-mediated tRNA export in vivo in Saccharomyces cerevisiae

    Arvind Arul Nambi Rajan, Ryuta Asada, Ben Montpetit
    In vivo and in vitro characterization demonstrates a direct interaction of Dbp5 with tRNA that requires Gle1 to spatially activate the Dbp5 ATPase cycle for tRNA export in Saccharomyces cerevisiae.
    1. Biochemistry and Chemical Biology
    2. Cell Biology

    Multiple selection filters ensure accurate tail-anchored membrane protein targeting

    Meera Rao, Voytek Okreglak ... Shu-ou Shan
    Biochemical dissections show that the Guided Entry of Tail Anchored proteins (GET) pathway selects ER-destined tail-anchored proteins using at least two distinct molecular mechanisms, each recognizing a distinct physicochemical feature in the substrate.
    1. Cell Biology
    2. Computational and Systems Biology

    CEM500K, a large-scale heterogeneous unlabeled cellular electron microscopy image dataset for deep learning

    Ryan Conrad, Kedar Narayan
    'Cellular Electron Microscopy 500,000 images' (CEM500K) is a highly heterogeneous, information-rich, non-redundant, unlabeled EM dataset curated to pre-train DL algorithms for better model generalization on EM segmentation tasks.
    1. Cell Biology

    Ubiquitination drives COPI priming and Golgi SNARE localization

    Swapneeta S Date, Peng Xu ... Todd R Graham
    The ability of COPI to bind polyubiquitin is a key determinant for SNARE incorporation into intracellular vesicles and for maintenance of a functional Golgi complex.
    1. Neuroscience

    Chronic 2P-STED imaging reveals high turnover of dendritic spines in the hippocampus in vivo

    Thomas Pfeiffer, Stefanie Poll ... U Valentin Nägerl
    Super-resolution STED microscopy is demonstrated for the first time in the deeply embedded mouse hippocampus in vivo, revealing direct evidence for an unprecedentedly high level of synapse remodeling in a brain structure closely associated with memory processing.
    1. Neuroscience

    Binary and analog variation of synapses between cortical pyramidal neurons

    Sven Dorkenwald, Nicholas L Turner ... H Sebastian Seung
    Sizes of synapses between layer 2/3 pyramidal cells in mouse primary visual cortex are well modeled by the sum of a binary variable and an analog variable drawn from a log-normal distribution.

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