1,807 results found
    1. Cell Biology
    2. Chromosomes and Gene Expression

    Quantifying β-catenin subcellular dynamics and cyclin D1 mRNA transcription during Wnt signaling in single living cells

    Pinhas Kafri et al.
    Imaging of single cells within a cell population shows the correlation between subcellular accumulation of β-catenin and the transcriptional activation of a target gene.
    1. Computational and Systems Biology
    2. Immunology and Inflammation

    Digital signaling decouples activation probability and population heterogeneity

    Ryan A Kellogg et al.
    Digital NF-κB signaling achieves orthogonal control over the probability of activation (percentage of activated cells) and dynamic response heterogeneity in the population via the area and shape of the input profile.
    1. Computational and Systems Biology
    2. Developmental Biology

    Rapid changes in morphogen concentration control self-organized patterning in human embryonic stem cells

    Idse Heemskerk et al.
    Live cell imaging demonstrates that the dynamics of ligand presentation influence signaling through two closely related morphogen signaling pathways in dramatically different ways.
    1. Biochemistry and Chemical Biology
    2. Computational and Systems Biology

    Mapping the functional versatility and fragility of Ras GTPase signaling circuits through in vitro network reconstitution

    Scott M Coyle, Wendell A Lim
    A systems level reconstitution of H-Ras GTPase signaling reveals a rich space of tunable dynamic outputs and clarifies the consequences of oncogenic perturbations to signaling.
    1. Chromosomes and Gene Expression

    Promoter nucleosome dynamics regulated by signalling through the CTD code

    Philippe Materne et al.
    Phosphorylation of the C-terminal domain (CTD) of RNA Polymerase II controls nucleosomes dynamics at specific promoters to regulate transcription.
    1. Biochemistry and Chemical Biology
    2. Immunology and Inflammation

    The allosteric activation of cGAS underpins its dynamic signaling landscape

    Richard M Hooy, Jungsan Sohn
    Rigorous biophysical studies reconcile several conflicting views on how cGAS is activated, and present a new unifying allosteric activation mechanism.
    1. Developmental Biology

    Dynamic BMP signaling polarized by Toll patterns the dorsoventral axis in a hemimetabolous insect

    Lena Sachs et al.
    During the evolution of insect lineages, a signaling pathway dedicated to pathogen defense was co-opted for a new role in embryonic patterning.
    1. Computational and Systems Biology
    2. Developmental Biology

    Dynamics of BMP signaling and distribution during zebrafish dorsal-ventral patterning

    Autumn P Pomreinke et al.
    Patterning of the dorsal-ventral axis in zebrafish is mediated by a graded source-sink mechanism in which diffusing BMP, produced from a ventrally biased source, is inhibited by dorsally-produced chordin.
    1. Cell Biology
    2. Computational and Systems Biology

    Dynamic NF-κB and E2F interactions control the priority and timing of inflammatory signalling and cell proliferation

    John M Ankers et al.
    Cell imaging and mathematical modelling show reciprocal cross-regulation between inflammatory signalling and cell cycle timing, which is mediated through functional interactions between NF-B and E2F proteins.
    1. Neuroscience

    Regulation of branching dynamics by axon-intrinsic asymmetries in Tyrosine Kinase Receptor signaling

    Marlen Zschätzsch et al.
    Asymmetric localization of the receptor EGFR within branches of axons is required to establish the precise wiring of neuronal networks within the Drosophila brain.

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