27 results found
    1. Microbiology and Infectious Disease

    Defective lytic transglycosylase disrupts cell morphogenesis by hindering cell wall de-O-acetylation in Neisseria meningitidis

    Allison Hillary Williams et al.
    Lytic transglycosylase enhances the activity of its protein partner, and its catalytic domain can be targeted to disrupt cell-wall integrity, protein partner function, and bacterial survival (Neisseria meningitidis) in hosts.
    1. Immunology and Inflammation
    2. Microbiology and Infectious Disease

    Competition between antagonistic complement factors for a single protein on N. meningitidis rules disease susceptibility

    Joseph JE Caesar et al.
    Genetic susceptibility to an infectious disease is linked to competition for binding a molecule on the bacterial surface by two host proteins with opposing roles in host immunity.
    1. Structural Biology and Molecular Biophysics

    A processive rotary mechanism couples substrate unfolding and proteolysis in the ClpXP degradation machinery

    Zev A Ripstein et al.
    Understanding of bacterial protein degradation is illuminated by cryo-EM structures of the substrate-bound ClpXP complex from Neisseria meningitidis at 2.3 to 3.3 Å resolution.
    1. Computational and Systems Biology
    2. Structural Biology and Molecular Biophysics

    Local frustration determines loop opening during the catalytic cycle of an oxidoreductase

    Lukas S Stelzl et al.
    The cysteine pair oxidation state in nDsbD acts as a ‘switch’ controlling the presence or absence of frustration in the active-site and determining the dynamic behavior of the cap loop.
    1. Structural Biology and Molecular Biophysics

    Protein Unfolding: Same structure, different mechanisms?

    Francis TF Tsai, Christopher P Hill
    Two interpretations of similar structures for the same molecular machine illustrate the limits of inferring biochemical mechanism from protein structure.
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    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

    Structure and in situ organisation of the Pyrococcus furiosus archaellum machinery

    Bertram Daum et al.
    Using both electron cryo-tomography and helical reconstruction, the first structure of the entire archaellum machinery with an assembled filament has been determined, providing the structural basis for our understanding of archaeal motility.
    1. Structural Biology and Molecular Biophysics

    Structures of the ATP-fueled ClpXP proteolytic machine bound to protein substrate

    Xue Fei et al.
    Cryo-EM structures of the ClpXP protease reveal how protein substrates are bound, show how spiral ClpX hexamers bind symmetry-mismatched heptameric ClpP rings, and suggest mechanisms for processive substrate translocation.
    1. Microbiology and Infectious Disease

    Neighbor predation linked to natural competence fosters the transfer of large genomic regions in Vibrio cholerae

    Noémie Matthey et al.
    Whole-genome sequencing reveals the remarkable extent of horizontally moving genetic material in naturally competent Vibrio cholerae after a prey-killing DNA acquisition process.
    1. Structural Biology and Molecular Biophysics
    2. Microbiology and Infectious Disease

    Extended low-resolution structure of a Leptospira antigen offers high bactericidal antibody accessibility amenable to vaccine design

    Ching-Lin Hsieh et al.
    The antibody accessibility of the leptospiral surface protein, LigB, provides a guide for the rational design of improved recombinant chimeric vaccine antigens displayed on a single domain scaffold.

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