3,030 results found
    1. Computational and Systems Biology

    Distributing tasks via multiple input pathways increases cellular survival in stress

    Alejandro A Granados, Matthew M Crane ... Peter S Swain
    Single-cell experiments and mathematical modelling show that cellular signalling networks are vulnerable to trade-offs in speed versus accuracy, but that these vulnerabilities can be overcome by distributing the two tasks to different, although interacting, subnetworks.
    1. Neuroscience

    Ca2+ entry through NaV channels generates submillisecond axonal Ca2+ signaling

    Naomi AK Hanemaaijer, Marko A Popovic ... Maarten HP Kole
    High-speed calcium imaging from the axon initial segment shows that sodium channels are in part permeable to calcium ions.
    1. Microbiology and Infectious Disease
    2. Physics of Living Systems

    An optimal regulation of fluxes dictates microbial growth in and out of steady state

    Griffin Chure, Jonas Cremer
    Microbial cells optimally structure their proteomes in order to mutually maximize metabolism and translation, as established by an extensive comparison between data and a low-dimensional model of cellular physiology.
    1. Biochemistry and Chemical Biology

    A toolkit for studying cell surface shedding of diverse transmembrane receptors

    Amanda N Hayward, Eric J Aird, Wendy R Gordon
    The modularity and unequivocal input/response of Notch signaling are harnessed to measure cell-surface shedding of diverse transmembrane receptors to identify new proteolytic switches and detect modulation of proteolysis by therapeutics.
    1. Developmental Biology
    2. Plant Biology

    Genetic analysis of the Arabidopsis TIR1/AFB auxin receptors reveals both overlapping and specialized functions

    Michael J Prigge, Matthieu Platre ... Mark Estelle
    Genetic analyses reveal that the TIR1/AFB auxin receptors have broadly overlapping functions throughout plant development, but that the AFB1 receptor has a specialized role in a rapid auxin response.
    1. Computational and Systems Biology

    Ecological feedback in quorum-sensing microbial populations can induce heterogeneous production of autoinducers

    Matthias Bauer, Johannes Knebel ... Erwin Frey
    Quorum sensing enables heterogeneous production of autoinducers in microbial populations, suggesting an alternative mechanism to stochastic gene expression in bistable gene-regulatory circuits to control phenotypic heterogeneity.
    1. Neuroscience

    Cellular diversity in the Drosophila midbrain revealed by single-cell transcriptomics

    Vincent Croset, Christoph D Treiber, Scott Waddell
    Sequencing mRNA from thousands of single cells from the Drosophila brain highlights the extent of cellular diversity and reveals co-expression of specific neuropeptides with particular fast-acting neurotransmitters and monoamines.
    1. Neuroscience

    Melanopsin activates divergent phototransduction pathways in intrinsically photosensitive retinal ganglion cell subtypes

    Ely Contreras, Jacob D Bhoi ... Tiffany M Schmidt
    Melanopsin phototransduction targets distinct complements of transduction channels across intrinsically photosensitive retinal ganglion cell subtypes and does not require hyperpolarization-activated cyclic nucleotide-gated channels.
    1. Structural Biology and Molecular Biophysics
    2. Computational and Systems Biology

    Lipids and ions traverse the membrane by the same physical pathway in the nhTMEM16 scramblase

    Tao Jiang, Kuai Yu ... Emad Tajkhorshid
    A concerted approach employing equilibrium and biased molecular simulations, electrophysiology, mutagenesis, and functional assays reveals, in atomic details, the mechanism and pathway for transport of phospholipids and ions by a lipid scramblase.
    1. Neuroscience

    Ir56d-dependent fatty acid responses in Drosophila uncover taste discrimination between different classes of fatty acids

    Elizabeth B Brown, Kreesha D Shah ... Alex C Keene
    The taste system of fruit flies is activated by broad classes of fatty acids and can discriminate between different classes, revealing previously underappreciated complexity in the coding of tastants.

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