29 results found
    1. Cell Biology
    2. Stem Cells and Regenerative Medicine

    Inducible and reversible inhibition of miRNA-mediated gene repression in vivo

    Gaspare La Rocca et al.
    A new genetically engineered mouse strain is described in which miRNA activity can be acutely and reversibly inhibited, showing that in a subset of adult tissues miRNA activity is dispensable under homeostatic conditions but becomes essential during tissue regeneration.
    1. Microbiology and Infectious Disease

    A Tad-like apparatus is required for contact-dependent prey killing in predatory social bacteria

    Sofiene Seef et al.
    First identification of the molecular determinants driving contact-dependent predation in Myxococcus..
    1. Evolutionary Biology

    High potency of sequential therapy with only β-lactam antibiotics

    Aditi Batra et al.
    Sequential therapy with only β-lactam antibiotics achieves surprisingly high potency by exploiting both low rates of spontaneous resistance emergence and low rates of spontaneous cross-resistance among the drugs in sequence.
    1. Genetics and Genomics
    2. Medicine

    EPHX1 mutations cause a lipoatrophic diabetes syndrome due to impaired epoxide hydrolysis and increased cellular senescence

    Jeremie Gautheron et al.
    Disruption of epoxide hydrolysis inducing oxidative stress and cellular senescence is a novel mechanism responsible for lipoatrophic monogenic diabetes.
    1. Genetics and Genomics
    2. Microbiology and Infectious Disease

    The role of interspecies recombination in the evolution of antibiotic-resistant pneumococci

    Joshua C D'Aeth et al.
    Selection by national-level antibiotic consumption and vaccination trends drives atypical recombinations, frequently resulting in interspecies sequence exchange at many sites across a bacterial species’ chromosome.
    1. Biochemistry and Chemical Biology

    Real-time monitoring of peptidoglycan synthesis by membrane-reconstituted penicillin-binding proteins

    Víctor M Hernández-Rocamora et al.
    The synthesis of bacterial cell wall peptidoglycan was reconstituted in lipid bilayers and detected by a novel Förster resonance energy transfer real-time assay.
    1. Biochemistry and Chemical Biology

    Membrane-partitioned cell wall synthesis in mycobacteria

    Alam García-Heredia et al.
    Mycobacteria employ plasma membrane compartments to organize their cell wall synthesis, and the finalized cell wall compartmentalizes the plasma membrane to promote an environment conducive to its own synthesis.
    1. Genetics and Genomics

    A regulatory pathway that selectively up-regulates elongasome function in the absence of class A PBPs

    Yesha Patel et al.
    Balanced peptidoglycan synthesis requires regulators, including sigma-I and WalKR, that coordinate the diffusive action of class A PBPs and the directional motion of the MreB-directed elongasome.
    1. Cell Biology
    2. Microbiology and Infectious Disease

    Flotillin-mediated membrane fluidity controls peptidoglycan synthesis and MreB movement

    Aleksandra Zielińska et al.
    Correct cell wall synthesis in bacteria depends on flotillin-mediated membrane fluidity.
    1. Chromosomes and Gene Expression
    2. Structural Biology and Molecular Biophysics

    mRNA stem-loops can pause the ribosome by hindering A-site tRNA binding

    Chen Bao et al.
    By sterically hindering tRNA binding and inhibiting translation elongation, mRNA stem-loops can modulate gene expression.

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