12 results found
    1. Biochemistry and Chemical Biology
    2. Microbiology and Infectious Disease

    A selective gut bacterial bile salt hydrolase alters host metabolism

    Lina Yao et al.
    The deletion of a single gene encoding a selective bile salt hydrolase from the abundant human gut bacterium Bacteroides thetaiotaomicron significantly alters host metabolism.
    1. Microbiology and Infectious Disease

    Human gut Bacteroides capture vitamin B12 via cell surface-exposed lipoproteins

    Aaron G Wexler et al.
    The human gut bacterial lipoprotein BtuG binds vitamin B12 with femtomolar affinity, can remove vitamin B12 from human intrinsic factor, and is required for commensal fitness in the gut.
    1. Microbiology and Infectious Disease

    Microbiota functional activity biosensors for characterizing nutrient metabolism in vivo

    Darryl A Wesener et al.
    A method has been developed to characterize the expressed biochemical activities of gut microbial communities using retrievable, microscopic, fluorescent-labeled glass beads containing chemically bound surface biomolecules.
    1. Immunology and Inflammation

    Expansion of intestinal Prevotella copri correlates with enhanced susceptibility to arthritis

    Jose U Scher et al.
    The sequencing of microbial genomes reveals that the presence of a particular microbial species in the gut may increase the risk of the autoimmune disease rheumatoid arthritis.
    1. Immunology and Inflammation
    2. Microbiology and Infectious Disease

    CRISPR-based functional genomics in human dendritic cells

    Marco Jost et al.
    A CRISPR-based method enables targeted knockouts and genetic screens in human dendritic cells.
    1. Microbiology and Infectious Disease

    Changes in the genetic requirements for microbial interactions with increasing community complexity

    Manon Morin et al.
    Analysis of the global genetic requirements and gene expression changes in E. coli in the presence of a simple microbiome revealed pairwise and higher-order interactions, and underlying molecular mechanisms.
    1. Immunology and Inflammation
    2. Microbiology and Infectious Disease

    Reshaping of bacterial molecular hydrogen metabolism contributes to the outgrowth of commensal E. coli during gut inflammation

    Elizabeth R Hughes et al.
    Bioinformatics analyses and experiments in mouse models reveal how Escherichia coli accesses the molecular hydrogen pool to boost colonization during acute colitis.
    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. Ecology
    2. Microbiology and Infectious Disease

    Recurring patterns in bacterioplankton dynamics during coastal spring algae blooms

    Hanno Teeling et al.
    Dynamic successive blooms of clades of planktonic marine bacteria that can be observed during blooms of marine algae follow discernible patterns, part of which might be explained by substrate-induced forcing.
    1. Microbiology and Infectious Disease

    MetaHiC phage-bacteria infection network reveals active cycling phages of the healthy human gut

    Martial Marbouty et al.
    Physical contacts of bacteria and phage genomes allow in situ exploration of underdocumented phage families in the gut.

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