111 results found
    1. Microbiology and Infectious Disease
    2. Structural Biology and Molecular Biophysics

    The molecular architecture of engulfment during Bacillus subtilis sporulation

    Kanika Khanna et al.
    In situ cryo-electron tomography unveils the molecular sociology of a developing sporangium in Bacillus subtilis, revealing critical information about cell wall remodeling and membrane migration in bacteria.
    1. Computational and Systems Biology
    2. Microbiology and Infectious Disease

    Cell-wall remodeling drives engulfment during Bacillus subtilis sporulation

    Nikola Ojkic et al.
    Imaging experiments and simulations reveal that the biophysical mechanism for force generation needed to engulf a forespore is based on coordinated cell wall synthesis and degradation.
    1. Biochemistry and Chemical Biology
    2. Chromosomes and Gene Expression

    SMC condensin entraps chromosomal DNA by an ATP hydrolysis dependent loading mechanism in Bacillus subtilis

    Larissa Wilhelm et al.
    The Smc–ScpAB complex-a prokaryotic ancestor of cohesin, condensin and Smc5/6-loads onto the bacterial chromosome by employing ATP hydrolysis to capture DNA fibers within its tripartite ring.
    1. Computational and Systems Biology
    2. Microbiology and Infectious Disease

    Metabolism: Division of labor in bacteria

    Alma Dal Co et al.
    The emergence of subpopulations that perform distinct metabolic roles has been observed in populations of genetically identical bacteria.
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    1. Microbiology and Infectious Disease

    MreB filaments align along greatest principal membrane curvature to orient cell wall synthesis

    Saman Hussain et al.
    MreB filaments bind, orient, and move along the direction of greatest membrane curvature, thus orienting the insertion of new glycan strands around the cell circumference in a manner that may help establish and maintain rod shape.
    1. Computational and Systems Biology
    2. Microbiology and Infectious Disease

    Metabolic interactions between dynamic bacterial subpopulations

    Adam Z Rosenthal et al.
    Metabolic division of labor in B. subtilis controls the extracellular environment.
    1. Structural Biology and Molecular Biophysics
    2. Cell Biology

    Visualization and functional dissection of coaxial paired SpoIIIE channels across the sporulation septum

    Jae Yen Shin et al.
    SpoIIIE forms a protein channel that spans the two lipid bilayers of the septum and mediates chromosome translocation and reversible membrane fission during Bacilus subtilis sporulation.
    1. Cell Biology
    2. Microbiology and Infectious Disease

    Point of View: Is cell size a spandrel?

    Ariel Amir
    Analysis of experiments on bacteria suggests that the dependence of cell size on growth rate is not an adaptation but a causal consequence of a regulatory mechanism that controls DNA replication.
    1. Cell Biology
    2. Microbiology and Infectious Disease

    Bacterial Proliferation: Off the wall

    Dennis Claessen, Gilles P van Wezel
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    1. Structural Biology and Molecular Biophysics
    2. Microbiology and Infectious Disease

    Regulation of signaling directionality revealed by 3D snapshots of a kinase:regulator complex in action

    Felipe Trajtenberg et al.
    The molecular mechanism of switching between phosphotransferase- and phosphatase-competent states in histidine-kinases has been uncovered, through direct crystallographic observation of bona fide complexes between a histidine-kinase and its response regulator from Bacillus subtilise.

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