3,806 results found
    1. Structural Biology and Molecular Biophysics

    Stepwise visualization of membrane pore formation by suilysin, a bacterial cholesterol-dependent cytolysin

    Carl Leung et al.
    Electron and atomic force microscopy show how bacterial toxins bind to a host membrane and assemble into arcs and rings, before undergoing a dramatic, concerted conformational change to insert into the membrane.
    1. Cell Biology
    2. Plant Biology

    ER assembly of SNARE complexes mediating formation of partitioning membrane in Arabidopsis cytokinesis

    Matthias Karnahl et al.
    SNARE proteins are delivered as complexes already from the endoplasmic reticulum along the secretory pathway to the cell division plane to mediate the formation of the partitioning membrane by vesicle fusion.
    1. Cell Biology

    Dynamic recruitment of the curvature-sensitive protein ArhGAP44 to nanoscale membrane deformations limits exploratory filopodia initiation in neurons

    Milos Galic et al.
    Local inward plasma membrane deformations caused by actomyosin-dependent contraction trigger the dynamic recruitment of a curvature-sensitive actin-regulatory protein, which represents a receptor-independent auto-regulatory mechanism to control local actin polymerization dynamics at the plasma membrane.
    1. Biochemistry and Chemical Biology
    2. Microbiology and Infectious Disease

    Formation of a β-barrel membrane protein is catalyzed by the interior surface of the assembly machine protein BamA

    James Lee et al.
    Outer membrane β-barrel proteins in Gram-negative bacteria are assembled within the lumen of the BamA β-barrel.
    1. Cell Biology

    Integrin-based diffusion barrier separates membrane domains enabling the formation of microbiostatic frustrated phagosomes

    Michelle E Maxson et al.
    The diffusional barrier formed between phagocyte integrin and fungal glucans preserves the microbiostatic phagocytic environment generated during the frustrated phagocytosis of Candida albicans hypha.
    1. Microbiology and Infectious Disease

    A lipoprotein/β-barrel complex monitors lipopolysaccharide integrity transducing information across the outer membrane

    Anna Konovalova et al.
    Mutations that block assembly of the interlocked RcsF/β barrel protein complex prevent detection of lipopolysaccharide stress and activation of Rcs signal transduction pathway.
    1. Structural Biology and Molecular Biophysics
    2. Microbiology and Infectious Disease

    Coincidence detection and bi-directional transmembrane signaling control a bacterial second messenger receptor

    Richard B Cooley et al.
    Building on previous work (Chatterjee et al., 2014), the mechanism of coincidence detection in bacterial second messenger signaling across membranes is revealed at a molecular level, providing insight into the regulation of a conserved transmembrane receptor.
    1. Cell Biology
    2. Neuroscience

    Filamin, a synaptic organizer in Drosophila, determines glutamate receptor composition and membrane growth

    GaYoung Lee, Thomas L Schwarz
    Filamin, by recruiting a signaling complex to the postsynapse, orchestrates the correct formation and growth of postsynaptic membranes and localization of glutamate receptor subunits.
    1. Cell Biology
    2. Plant Biology

    Delivery of endocytosed proteins to the cell–division plane requires change of pathway from recycling to secretion

    Sandra Richter et al.
    The same membrane trafficking cargo can change pathways mediated by different members of ARF-GEF family of vesicle formation regulators.

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