27 results found
    1. Evolutionary Biology
    2. Microbiology and Infectious Disease

    Ribosomal mutations promote the evolution of antibiotic resistance in a multidrug environment

    James E Gomez et al.
    Mutations in several components of a bacterial ribosome are shown to broadly decrease antibiotic and stress sensitivity, and readily accessible reversion mutations allow these ribosomal mutations to serve as stepping stones to high level antibiotic resistance.
    1. Immunology and Inflammation
    2. Microbiology and Infectious Disease

    IRF4 haploinsufficiency in a family with Whipple’s disease

    Antoine Guérin et al.
    Autosomal dominant IRF4 deficiency is the first genetic etiology of Whipple's disease, a very rare chronic condition following a rather common infection by Tropheryma whipplei.
    1. Ecology
    2. Microbiology and Infectious Disease

    A microbial clock provides an accurate estimate of the postmortem interval in a mouse model system

    Jessica L Metcalf et al.
    High-throughput sequencing has been used to analyze the microbiome of mouse corpses over a period of 48 days, and to provide an accurate estimate of the time since death.
    1. Microbiology and Infectious Disease

    A conserved cell division protein directly regulates FtsZ dynamics in filamentous and unicellular actinobacteria

    Félix Ramos-León et al.
    Identification of a novel regulator that directly influences the assembly and function of the cell division machinery in industrially and medically important bacteria.
    1. Structural Biology and Molecular Biophysics

    Structural and functional insights into the bona fide catalytic state of Streptococcus pyogenes Cas9 HNH nuclease domain

    Zhicheng Zuo et al.
    The catalytic activation of the Cas9 HNH domain involves a unique conformational change in the ββα-metal motif that is collectively driven by the interactions with the metal ions and DNA.
    1. Microbiology and Infectious Disease

    Septal secretion of protein A in Staphylococcus aureus requires SecA and lipoteichoic acid synthesis

    Wenqi Yu et al.
    Surface protein precursors traffic to lipoteichoic acid-rich septal membranes of Staphylococcus aureus for cleavage of their YSIRK-GXXS motif signal peptides and SecA-mediated translocation across the plasma membrane.
    1. Microbiology and Infectious Disease

    Factors essential for L,D-transpeptidase-mediated peptidoglycan cross-linking and β-lactam resistance in Escherichia coli

    Jean-Emmanuel Hugonnet et al.
    Production of the L,D-transpeptidase YcbB and elevated synthesis of the (p)ppGpp alarmone reveals a new mode of peptidoglycan polymerization that bypasses the D,D-transpeptidase activity of PBPs and leads to broad-spectrum β-lactam resistance in Escherichia coli.
    1. Developmental Biology
    2. Neuroscience

    Caenorhabditis elegans processes sensory information to choose between freeloading and self-defense strategies

    Jodie A Schiffer et al.
    C. elegans nematodes use a sensory-neuronal circuit to determine whether to defend themselves from hydrogen peroxide attack or to freeload off orthologous protective defenses from bacteria in their surrounding environment.
    1. Ecology
    2. Microbiology and Infectious Disease

    Targeted induction of a silent fungal gene cluster encoding the bacteria-specific germination inhibitor fumigermin

    Maria Cristina Stroe et al.
    A silent gene cluster of the fungus Aspergillus fumigatus is activated by a bacterium and leads to the production of a novel spore germination inhibitor targeting the inducing bacterium.
    1. Microbiology and Infectious Disease

    Rv3723/LucA coordinates fatty acid and cholesterol uptake in Mycobacterium tuberculosis

    Evgeniya V Nazarova et al.
    The integral membrane protein LucA facilitates fatty acid and cholesterol uptake into Mycobacterium tuberculosis by stabilizing the Mce1 and Mce4 transporters, respectively, and Mce1 functions as a fatty acid transporter in Mycobacterium tuberculosis.

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