34 results found
    1. Structural Biology and Molecular Biophysics
    2. Cell Biology

    Vesicles: Looking inside the cell

    Eric C Arakel, Blanche Schwappach
    Advances in imaging techniques have shed new light on the structure of vesicles formed by COPI protein complexes.
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    1. Structural Biology and Molecular Biophysics
    2. Cell Biology

    9Å structure of the COPI coat reveals that the Arf1 GTPase occupies two contrasting molecular environments

    Svetlana O Dodonova et al.
    A molecular model of the assembled COPI coat, determined by cryo-electron tomography of an in vitro reconstituted budding reaction, reveals details of interactions mediating coat assembly and shows the binding site of ArfGAP2.
    1. Structural Biology and Molecular Biophysics

    Structure of a type IV pilus machinery in the open and closed state

    Vicki AM Gold et al.
    Electron cryo-tomography reveals a huge conformational change in the secretin domain of the type IV pilus machinery that occurs when the channel opens for pilus extrusion.
    1. Cell Biology

    Electron cryo-tomography provides insight into procentriole architecture and assembly mechanism

    Sam Li et al.
    A detailed description of the structure of procentriole MT triplet by cryoET, along with its associated non-tubulin proteins and its assembly intermediates, reveals possible molecular mechanism for the procentriole assembly.
    1. Structural Biology and Molecular Biophysics
    2. Cell Biology

    The structure of the COPI coat determined within the cell

    Yury S Bykov et al.
    Cryo-electron tomography of COPI vesicles in the Golgi reveals coat structure, disassembly dynamics, cargo binding, and morphological variability.
    1. Microbiology and Infectious Disease
    2. Structural Biology and Molecular Biophysics

    Ebola and Marburg virus matrix layers are locally ordered assemblies of VP40 dimers

    William Wan et al.
    Cryo-electron tomography reveals the structure and arrangement of the VP40 matrix protein lattice that mediates the formation of Ebola and Marburg virus particles.
    1. Structural Biology and Molecular Biophysics

    Cryo-EM structures of S-OPA1 reveal its interactions with membrane and changes upon nucleotide binding

    Danyang Zhang et al.
    GTP binding induces rearrangement of S-OPA1 assembly on membrane and thus triggers membrane remodeling with reduced curvature.
    1. Structural Biology and Molecular Biophysics

    Protein denaturation at the air-water interface and how to prevent it

    Edoardo D'Imprima et al.
    Hydrophilized graphene prevents protein denaturation at the air-water interface.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    The role of Cdc42 and Gic1 in the regulation of septin filament formation and dissociation

    Yashar Sadian et al.
    Imaging with electron microscopy and cryo-electron tomography reveals that competition between Cdc42 and Gic1 for the same subunit within septins controls the formation and breakdown of septin filaments.
    1. Cell Biology
    2. Structural Biology and Molecular Biophysics

    FGF21 trafficking in intact human cells revealed by cryo-electron tomography with gold nanoparticles

    Maia Azubel et al.
    Specific attachment of molecularly defined gold nanoparticles enables precise localization, critical for structural studies in vivo, of proteins of unknown structure within the cellular milieu by cryo-electron tomography.

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