2,352 results found
    1. Cell Biology
    2. Developmental Biology

    Cleavage activates Dispatched for Sonic Hedgehog ligand release

    Daniel P Stewart et al.
    Dispatched cleavage, mediated by Furin, regulates Dispatched membrane trafficking and release of Sonic Hedgehog ligand.
    1. Developmental Biology

    LIS1 determines cleavage plane positioning by regulating actomyosin-mediated cell membrane contractility

    Hyang Mi Moon et al.
    Novel insights into LIS1-dependent regulation of cell membrane contractility and cleavage axis specification identify a key molecular network regulating mitoses of neural progenitors and somatic cells during development.
    1. Immunology and Inflammation
    2. Microbiology and Infectious Disease

    Contributions of mast cells and vasoactive products, leukotrienes and chymase, to dengue virus-induced vascular leakage

    Ashley L St John et al.
    Proteins produced by mast cells modulate the permeability of blood vessels, and may determine whether patients infected with dengue virus develop life-threatening complications.
    1. Biochemistry and Chemical Biology
    2. Plant Biology

    RISC-interacting clearing 3’- 5’ exoribonucleases (RICEs) degrade uridylated cleavage fragments to maintain functional RISC in Arabidopsis thaliana

    Zhonghui Zhang et al.
    AGO protein-interacting exoribonucleases clear RNA induced silencing complex (RISC)-resulting 5' cleavage products in time to recycle RISC and miRNAs.
    1. Microbiology and Infectious Disease

    SARS-CoV-2 entry into human airway organoids is serine protease-mediated and facilitated by the multibasic cleavage site

    Anna Z Mykytyn et al.
    Whereas SARS-CoV-2 utilizes cathepsins to enter most cell lines, human airway organoids revealed that entry into relevant cells is dependent on serine proteases, which can be targeted for treatment.
    1. Immunology and Inflammation
    2. Microbiology and Infectious Disease

    Dengue vascular leakage is augmented by mast cell degranulation mediated by immunoglobulin Fcγ receptors

    Ayesa Syenina et al.
    Building on previous work (St John et al., 2013), we explain why secondary infection by dengue virus is associated with more severe vascular disease than primary infection.
    1. Developmental Biology

    The invariant cleavage pattern displayed by ascidian embryos depends on spindle positioning along the cell's longest axis in the apical plane and relies on asynchronous cell divisions

    Rémi Dumollard et al.
    Cell cycle asynchrony regulates apical cell shape to drive cell division orientation in the apical plane.
    1. Biochemistry and Chemical Biology
    2. Cell Biology

    Structure and topology around the cleavage site regulate post-translational cleavage of the HIV-1 gp160 signal peptide

    Erik Lee Snapp et al.
    Signal-peptide cleavage of HIV-1 envelope glycoprotein is delayed because of alpha-helical structure covering the cleavage site, effecting early cleavage alters the folding pathway and resulting in localized misfolding and reduced viral fitness.
    1. Biochemistry and Chemical Biology
    2. Cell Biology

    Roles of the membrane-reentrant β-hairpin-like loop of RseP protease in selective substrate cleavage

    Koichiro Akiyama et al.
    Mutational analysis and biochemical experiments suggest that the conserved β-hairpin-like membrane-reentrant loop of RseP - an S2P family intramembrane cleaving protease - helps to discriminate substrates by directly interacting with their transmembrane segments.
    1. Biochemistry and Chemical Biology

    Tetramerisation of the CRISPR ring nuclease Crn3/Csx3 facilitates cyclic oligoadenylate cleavage

    Januka S Athukoralage et al.
    A widespread ribonuclease is a CRISPR-associated ring nuclease with a highly unusual cooperative mechanism involving tetramerisation of the enzyme.

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