2,155 results found
    1. Computational and Systems Biology

    Phenotypic diversity and temporal variability in a bacterial signaling network revealed by single-cell FRET

    Johannes M Keegstra et al.
    Noise in a signaling network comprising thousands of molecules shapes diversity across cell populations and generates giant temporal fluctuations at the single-cell level.
    1. Microbiology and Infectious Disease
    2. Physics of Living Systems

    Delayed antibiotic exposure induces population collapse in enterococcal communities with drug-resistant subpopulations

    Kelsey M Hallinen et al.
    Collapse of bacterial communities containing antibiotic-resistant and susceptible cells can be driven by increased population size or delayed drug exposure.
    1. Computational and Systems Biology
    2. Microbiology and Infectious Disease

    Multiple sources of slow activity fluctuations in a bacterial chemosensory network

    Remy Colin et al.
    Single-cell FRET measurements reveal large temporal activity fluctuations within this signaling pathway in Escherichia coli, caused by stochasticity of receptor methylation combined with allosteric interactions and slow rearrangements within receptor clusters.
    1. Biochemistry and Chemical Biology
    2. Computational and Systems Biology

    Spatially compartmentalized phase regulation of a Ca2+-cAMP-PKA oscillatory circuit

    Brian Tenner et al.
    Nanodomain clustering of cAMP effectors represents a novel mechanism of cAMP compartmentation within an oscillatory signaling circuit.
    1. Physics of Living Systems

    A minimal self-organisation model of the Golgi apparatus

    Quentin Vagne et al.
    An unbiased model for the self-organisation of the Golgi apparatus displays either anterograde vesicular transport or cisternal maturation depending on ratios of budding, fusion and biochemical conversion rates.
    1. Ecology
    2. Physics of Living Systems

    Microbial consortia at steady supply

    Thibaud Taillefumier et al.
    In a consumer-resource model obeying the physical requirement of flux conservation, metabolic competition between microbes yields consortia of cell types that collectively resist invasion via optimal use of resources.
    1. Microbiology and Infectious Disease
    2. Physics of Living Systems

    The transpeptidase PBP2 governs initial localization and activity of the major cell-wall synthesis machinery in E. coli

    Gizem Özbaykal et al.
    For initiation of cell-wall insertion, the cross-linking enzyme PBP2 stably binds to a component of the cell envelope that is different from MreB filaments.
    1. Structural Biology and Molecular Biophysics

    Modelling dynamics in protein crystal structures by ensemble refinement

    B Tom Burnley et al.
    A combination of molecular dynamics simulations and X-ray diffraction data has been used to construct more realistic models of proteins and to provide new insights into their interactions with other proteins and biomolecules.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Insights into the key determinants of membrane protein topology enable the identification of new monotopic folds

    Sonya Entova et al.
    Key sequence motifs, defined using the first reported structure of a monotopic membrane protein with a reentrant helix, enable identification of new monotopic membrane protein families previously predicted as membrane spanning.
    1. Chromosomes and Gene Expression
    2. Computational and Systems Biology

    Effective dynamics of nucleosome configurations at the yeast PHO5 promoter

    Michael Roland Wolff et al.
    The integration of multi-nucleosome configuration data with histone turnover and new chromatin accessibility data by systematically investigated 'regulated on-off-slide' models reveals promoter state transitions regulated by just one assembly process.

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