8,925 results found
    1. Cancer Biology
    2. Developmental Biology

    Norrin/Frizzled4 signalling in the preneoplastic niche blocks medulloblastoma initiation

    Erin A Bassett et al.
    The earliest steps of tumor initiation in the cerebellum are regulated by critical interactions between pre-tumor cells and stromal cells, which can be manipulated by targeting the Norrin/Frizzled4 signaling axis.
    1. Neuroscience

    How spatial release from masking may fail to function in a highly directional auditory system

    Norman Lee, Andrew C Mason
    The auditory periphery of Ormia ochracea does not allow for spatial release from masking.
    1. Ecology
    2. Plant Biology

    Present-day central African forest is a legacy of the 19th century human history

    Julie Morin-Rivat et al.
    The cessation of major anthropogenic disturbances since European colonization in the forests of central Africa leads to a canopy closing, and to the disappearance of certain light-demanding tree species.
    1. Plant Biology

    Arabidopsis formin 2 regulates cell-to-cell trafficking by capping and stabilizing actin filaments at plasmodesmata

    Min Diao et al.
    Cytological and biochemical analyses reveal Arabidopsis formin 2 is involved in regulating PD permeability by anchoring actin filaments to PD and stabilizing them through actin filament barbed end capping activity.
    1. Cell Biology
    2. Developmental Biology

    The Drosophila formin Fhos is a primary mediator of sarcomeric thin-filament array assembly

    Arkadi Shwartz et al.
    Actin is incorporated into the thin-filament arrays of skeletal muscle sarcomeres in discrete steps, and Fhos, the Drosophila homolog of FHOD-family formins, is an essential player in the process.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    A Meier-Gorlin syndrome mutation in a conserved C-terminal helix of Orc6 impedes origin recognition complex formation

    Franziska Bleichert et al.
    Electron microscopy uncovers the structure of the origin recognition complex (ORC) in metazoans, and reveals how mutations in the ORC6 subunit lead to Meier-Gorlin syndrome in humans.
    1. Developmental Biology
    2. Neuroscience

    Precise regulation of the guidance receptor DMA-1 by KPC-1/Furin instructs dendritic branching decisions

    Xintong Dong et al.
    The enzyme KPC-1/Furin down-regulates the DMA-1 receptor in neurons, allowing growing dendrites to migrate away from intermediate targets.
    1. Computational and Systems Biology
    2. Neuroscience

    Inhibition enhances spatially-specific calcium encoding of synaptic input patterns in a biologically constrained model

    Daniel B Dorman et al.
    Inhibition enhances the spatial specificity of high calcium influx for cooperatively stimulated synapses, suggesting that inhibitory inputs may regulate both synapse-specific and heterosynaptic plasticity to support learning and memory.
    1. Immunology and Inflammation
    2. Microbiology and Infectious Disease

    Plasmodium-infected erythrocytes induce secretion of IGFBP7 to form type II rosettes and escape phagocytosis

    Wenn-Chyau Lee et al.
    Plasmodium parasites use host-derived factors to form more rosettes and hamper phagocytosis, representing a new escape mechanism for the malaria parasites.
    1. Microbiology and Infectious Disease
    2. Structural Biology and Molecular Biophysics

    Membrane insertion of α-xenorhabdolysin in near-atomic detail

    Evelyn Schubert et al.
    Cryo-EM and X-ray structures of α-xenorhabdolysin in soluble and pore form of Xenorhabdus nematophila give novel insights into the mechanism of action of bi-component α-pore-forming toxins.

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