2,386 results found
    1. Neuroscience

    MagC, magnetic collection of ultrathin sections for volumetric correlative light and electron microscopy

    Thomas Templier
    The augmentation of resin-embedded sample blocks with magnetic resin allows remote actuation of ultrathin sections and deposition at high packing density onto silicon wafers for correlative light and electron microscopy.
    1. Structural Biology and Molecular Biophysics

    PIE-scope, integrated cryo-correlative light and FIB/SEM microscopy

    Sergey Gorelick et al.
    The PIE-scope resolves the limitations in correlative cryo-focused ion beam milling by adding robustness and ease of use to the workflow.
    1. Structural Biology and Molecular Biophysics
    2. Microbiology and Infectious Disease

    Structure of bacterial cytoplasmic chemoreceptor arrays and implications for chemotactic signaling

    Ariane Briegel et al.
    Bacterial cytoplasmic chemoreceptors assemble into a sandwich of two hexagonally packed arrays.
    1. Structural Biology and Molecular Biophysics

    A lipid bound actin meshwork organizes liquid phase separation in model membranes

    Alf Honigmann et al.
    A combination of imaging experiments and computer simulations on a model lipid membrane integrate the 'picket fence' and 'raft' models, and suggest that the interplay between actin binding, lipid phase separation and curvature compartmentalize the membrane.
  1. Nuclear pore assembly proceeds by an inside-out extrusion of the nuclear envelope

    Shotaro Otsuka et al.
    Nuclear pores assemble asymmetrically, by an inside-out evagination of the inner nuclear membrane that grows in diameter and depth until it fuses with the flat outer nuclear membrane.
    1. Cell Biology

    Clathrin modulates vesicle scission, but not invagination shape, in yeast endocytosis

    Wanda Kukulski et al.
    Building on previous work (Picco et al., 2015), we use a hybrid imaging approach to address the role of clathrin during endocytosis: we find that it has no role in shaping or elongating membrane invaginations, but it does contribute to the regularity of vesicle scission.
    1. Cell Biology
    2. Structural Biology and Molecular Biophysics

    Molecular and topological reorganizations in mitochondrial architecture interplay during Bax-mediated steps of apoptosis

    Nicholas R Ader et al.
    Correlative microscopy and electron cryo-tomography on apoptotic HeLa cells reveal remodeling of outer and inner mitochondrial membranes, Bax cluster ultrastructure and ATP synthase reorganization in ruptured mitochondria.
    1. Structural Biology and Molecular Biophysics

    Automated cryo-EM structure refinement using correlation-driven molecular dynamics

    Maxim Igaev et al.
    Correlation-driven molecular dynamics provides a fully automated and human-bias-free framework for quantitative interpretation of modern cryo-electron microscopy data.
    1. Cell Biology
    2. Microbiology and Infectious Disease

    Point of View: Is cell size a spandrel?

    Ariel Amir
    Analysis of experiments on bacteria suggests that the dependence of cell size on growth rate is not an adaptation but a causal consequence of a regulatory mechanism that controls DNA replication.

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