144 results found
    1. Microbiology and Infectious Disease

    Biosensor-integrated transposon mutagenesis reveals rv0158 as a coordinator of redox homeostasis in Mycobacterium tuberculosis

    Somnath Shee, Reshma T Veetil ... Amit Singh
    Genome-scale integration of transposon mutagenesis with a redox biosensor identified a hypothetical transcription factor- Rv0158 required to calibrate the growth, cytoplasmic redox potential, and respiration of Mycobacterium tuberculosis in response to metabolic switching from glucose to fatty acids.
    1. Physics of Living Systems

    Antagonism between killer yeast strains as an experimental model for biological nucleation dynamics

    Andrea Giometto, David R Nelson, Andrew W Murray
    Like physical systems that exhibit nucleation phenomena, an invading population of a strong microbial antagonist requires a critical inoculum size to successfully invade a population of a weaker microbial antagonist.
    1. Cell Biology
    2. Microbiology and Infectious Disease

    Evidence for a DNA-relay mechanism in ParABS-mediated chromosome segregation

    Hoong Chuin Lim, Ivan Vladimirovich Surovtsev ... Christine Jacobs-Wagner
    In vitro, in vivo and in silico evidence suggests that bacteria exploit intrinsic chromosomal fluctuations to achieve intracellular transport.
    1. Developmental Biology
    2. Neuroscience

    Neuronal temperature perception induces specific defenses that enable C. elegans to cope with the enhanced reactivity of hydrogen peroxide at high temperature

    Francesco A Servello, Rute Fernandes ... Javier Apfeld
    C. elegans nematodes can assess faithfully the threat that H2O2 poses by coupling the induction of their H2O2 defenses to the perception of high temperature—an inherent enhancer of the reactivity of H2O2.
    1. Microbiology and Infectious Disease

    Fitness advantage of Bacteroides thetaiotaomicron capsular polysaccharide in the mouse gut depends on the resident microbiota

    Daniel Hoces, Giorgia Greter ... Emma Slack
    Neutral tagging and detailed analysis of bacterial growth kinetics can quantify the mechanisms of colonization resistance in differently colonized animals.
    1. Cell Biology
    2. Physics of Living Systems

    Dependence of diffusion in Escherichia coli cytoplasm on protein size, environmental conditions, and cell growth

    Nicola Bellotto, Jaime Agudo-Canalejo ... Victor Sourjik
    Diffusion of differently sized proteins in bacterial cytoplasm is nearly Brownian and consistent with the Stokes-Einstein relation, once protein shape and cell geometry are taken into account, and effects of various perturbation can be described as changes in cytoplasmic viscosity.
    1. Computational and Systems Biology
    2. Physics of Living Systems

    A biophysical threshold for biofilm formation

    Jenna A Moore-Ott, Selena Chiu ... Sujit S Datta
    A biophysical model of the process by which bacteria transition from the motile planktonic state to the immobilized biofilm state yields testable predictions in terms of two dimensionless parameters, one describing nutrient availability and the other describing cellular dispersal.
    1. Immunology and Inflammation

    C/EBPδ drives interactions between human MAIT cells and endothelial cells that are important for extravasation

    Chang Hoon Lee, Hongwei H Zhang ... Joshua M Farber
    The bZIP transcription factor C/EBPδ enhances expression both of selectin ligands and the chemokine receptor CCR6 on human mucosal-associated invariant T cells, supporting their efficient extravasation into inflamed tissue.
    1. Genetics and Genomics
    2. Microbiology and Infectious Disease

    An atlas of the binding specificities of transcription factors in Pseudomonas aeruginosa directs prediction of novel regulators in virulence

    Tingting Wang, Wenju Sun ... Jian Yan
    The transcription factor (TF)-binding specificities of Pseudomonas aeruginosa allow us to predict virulence-associated TFs and their target genes, which will facilitate to find effective treatment and prevention for its associated diseases.
    1. Biochemistry and Chemical Biology
    2. Chromosomes and Gene Expression

    Competitive binding of MatP and topoisomerase IV to the MukB hinge domain

    Gemma LM Fisher, Jani R Bolla ... David J Sherratt
    Topoisomerase IV and the ter-binding protein MatP competitively bind the hinge domain of the Escherichia coli Structural Maintenance of Chromosomes complex, MukB, leading to spatiotemporal regulation of MukBEF-topoisomerase IV activity.

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