19 results found
    1. Biochemistry and Chemical Biology

    Evolution of (p)ppGpp-HPRT regulation through diversification of an allosteric oligomeric interaction

    Brent W Anderson et al.
    The signaling ligand (p)ppGpp regulates the enzyme HPRT across species by binding to a novel class of conserved motif, yet its specificity is allosterically altered through evolution of enzyme oligomerization.
    1. Cell Biology
    2. Microbiology and Infectious Disease

    Chemotactic network responses to live bacteria show independence of phagocytosis from chemoreceptor sensing

    Netra Pal Meena, Alan R Kimmel
    Eukaryotic chemotaxis to live bacteria was quantified at a high throughput level, for the first time, and mechanistically examined for the interrelationship between chemotaxis and phagocytosis.
    1. Plant Biology

    Pathogen effectors and plant immunity determine specialization of the blast fungus to rice subspecies

    Jingjing Liao et al.
    Specialized fungal pathogen populations infect rice varieties with contrasting immune systems co-cultivated in a traditional agro-system, indicating the relevance of crop diversity to restricting epidemics in the landscape.
    1. Microbiology and Infectious Disease
    2. Plant Biology

    An effector of the Irish potato famine pathogen antagonizes a host autophagy cargo receptor

    Yasin F Dagdas et al.
    A plant pathogen effector evolved a short linear motif to subvert autophagic defenses by antagonising a host cargo receptor.
    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. Structural Biology and Molecular Biophysics
    2. Microbiology and Infectious Disease

    Structural basis for the hijacking of endosomal sorting nexin proteins by Chlamydia trachomatis

    Blessy Paul et al.
    Chlamydia hijacks membrane trafficking proteins of the human host via the cytoplasmic domain of a secreted transmembrane protein.
    1. Structural Biology and Molecular Biophysics
    2. Microbiology and Infectious Disease

    Chlamydia interfere with an interaction between the mannose-6-phosphate receptor and sorting nexins to counteract host restriction

    Cherilyn A Elwell et al.
    Structure of a pathogen effector complexed to Sorting Nexin 5 reveals an evolutionarily conserved interface that is required for retromer-dependent host restriction.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Site-specific monoubiquitination downregulates Rab5 by disrupting effector binding and guanine nucleotide conversion

    Donghyuk Shin et al.
    With monoubiquitination sites of Rab5 identified and structural and biochemical studies using chemically synthesized ubiquitinated Rab5, Rab5 monoubiquitination is found to downregulate the function of Rab5 in a site-dependent manner.
    1. Immunology and Inflammation
    2. Microbiology and Infectious Disease

    Comparative analysis of viral RNA signatures on different RIG-I-like receptors

    Raul Y Sanchez David et al.
    An experimental approach allowing characterization of viral RNA ligands recognized by RIG-I-like receptors during infection by any RNA viruses is established and validated.
    1. Evolutionary Biology
    2. Microbiology and Infectious Disease

    Symbiont location, host fitness, and possible coadaptation in a symbiosis between social amoebae and bacteria

    Longfei Shu et al.
    Morphological and fitness defects imposed on amoebae hosts by Burkholderia symbionts demonstrates symbiont species-specific effects and provides evidence of host adaptation to naturally acquired symbionts.

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