152 results found
    1. Structural Biology and Molecular Biophysics

    Cryo-EM structure of the bifunctional secretin complex of Thermus thermophilus

    Edoardo D'Imprima et al.
    The pilus extrusion/DNA uptake system of Thermus thermophilus contains a 13-mer of the 757-residue PilQ protein and a tightly bound protein outside the outer membrane with a role in DNA binding.
    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. Structural Biology and Molecular Biophysics

    Functional roles of Mg2+ binding sites in ion-dependent gating of a Mg2+ channel, MgtE, revealed by solution NMR

    Tatsuro Maruyama et al.
    Nuclear magnetic resonance analysis revealed the structural and dynamical changes in MgtE during the channel closure caused by the cooperative Mg2+-binding, which had remained undescribed only by a static crystal structure.
    1. Structural Biology and Molecular Biophysics

    Molecular architecture of the 90S small subunit pre-ribosome

    Qi Sun et al.
    The nearly complete architecture of the gigantic 90S precursor of small ribosomal subunit is determined by cryo-EM.
    1. Cell Biology

    IFT trains in different stages of assembly queue at the ciliary base for consecutive release into the cilium

    Jenna L Wingfield et al.
    Multimegadalton intraflagellar transport (IFT) trains assemble by sequential recruitment of IFT subcomplexes from the cell body to the ciliary basal bodies and tubulin, the main IFT cargo, is loaded briefly before trains depart.
    1. Cell Biology
    2. Microbiology and Infectious Disease

    Identification of cryptic subunits from an apicomplexan ATP synthase

    Diego Huet et al.
    A phylum-specific ATP synthase subunit is needed for proper mitochondrial function and stability of the complex in Toxoplasma gondii.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Cellular encoding of Cy dyes for single-molecule imaging

    Lilia Leisle et al.
    Cyanine fluorophores are encoded as non-canonical amino acids to produce functional proteins in cell-free translation systems and live cells for single-molecule imaging.
    1. Genetics and Genomics

    The endonuclease Cue2 cleaves mRNAs at stalled ribosomes during No Go Decay

    Karole N D'Orazio et al.
    Cue2 is an endonuclease that cleaves mRNA in the A site of the lagging ribosome upon ribosome collision events.
    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

    Structure of a bacterial ATP synthase

    Hui Guo et al.
    Construction of a first atomic model for an intact bacterial ATP synthase allows for a structural understanding of the roles of individual amino acids in the mechanism of ATP synthesis.

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