32 results found
    1. Microbiology and Infectious Disease

    Distinct cytoskeletal proteins define zones of enhanced cell wall synthesis in Helicobacter pylori

    Jennifer A Taylor et al.
    The helical bacterium Helicobacter pylori patterns cell wall synthesis using two distinct cytoskeletal proteins, CcmA and MreB, to achieve its characteristic shape.
    1. Microbiology and Infectious Disease
    2. Structural Biology and Molecular Biophysics

    Structure of the Helicobacter pylori Cag type IV secretion system

    Jeong Min Chung et al.
    The Helicobacter pylori Cag T4SS has unique structural features, including unexpected symmetry mismatch between sub-complexes, with implications for protein secretion.
    1. Physics of Living Systems

    Asymmetric random walks reveal that the chemotaxis network modulates flagellar rotational bias in Helicobacter pylori

    Jyot D Antani et al.
    Asymmetric forward and backward swimming speeds reveal that the rotational bias, and not reversal frequencies, is an appropriate measure of chemotaxis signaling in Helicobacter pylori..
    1. Microbiology and Infectious Disease

    Cryo-EM reveals species-specific components within the Helicobacter pylori Cag type IV secretion system core complex

    Michael J Sheedlo et al.
    The structure of a Type IV secretion system provides a framework for understanding assembly of a protein-injection machine.
    1. Chromosomes and Gene Expression
    2. Genetics and Genomics

    A genetic selection reveals functional metastable structures embedded in a toxin-encoding mRNA

    Sara Masachis et al.
    A genetic selection of toxicity suppressors coupled to high-throughput sequencing has captured metastable RNA structures that co-transcriptionally inhibit the translation of a bacterial toxin.
    1. Structural Biology and Molecular Biophysics
    2. Chromosomes and Gene Expression

    Structural snapshots of Xer recombination reveal activation by synaptic complex remodeling and DNA bending

    Aleksandra Bebel et al.
    DNA-bound crystal structures of an essential Xer site-specific recombinase from the bacterium Helicobacter pylori reveal how large conformational changes initiate the untangling of chromosomes upon cell division.
    1. Biochemistry and Chemical Biology
    2. Chromosomes and Gene Expression

    Multiple serine transposase dimers assemble the transposon-end synaptic complex during IS607-family transposition

    Wenyang Chen et al.
    Genetic, structural, and biochemical analyses of IS607-family transposons shows that the DNA translocation reaction proceeds very differently from other reactions promoted by serine recombinases.
    1. Evolutionary Biology

    Robust and accurate prediction of residue–residue interactions across protein interfaces using evolutionary information

    Sergey Ovchinnikov et al.
    Co-evolving residue pairs in the different components of a protein complex almost always make contact across the protein–protein interface, thus providing powerful restraints for the modeling of protein complexes.
    1. Microbiology and Infectious Disease
    2. Structural Biology and Molecular Biophysics

    Structural analysis of the Legionella pneumophila Dot/Icm type IV secretion system core complex

    Clarissa L Durie et al.
    The structure of the Legionella pneumophilaType IV secretion system provides the detailed molecular model of this complex molecular machine required for pathogenesis.
    1. Immunology and Inflammation
    2. Microbiology and Infectious Disease

    A model symbiosis reveals a role for sheathed-flagellum rotation in the release of immunogenic lipopolysaccharide

    Caitlin A Brennan et al.
    Both beneficial and pathogenic bacteria can use their sheathed flagella during host colonization as a novel toxin-/signal-delivery mechanism.

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