480 results found
    1. Chromosomes and Gene Expression
    2. Developmental Biology

    ARID1A loss in adult hepatocytes activates β-catenin-mediated erythropoietin transcription

    Rozenn Riou et al.
    A chromatin remodeling factor cooperates with Wnt signaling pathway to transcribe erythropoietin in the adult liver, inducing its secretion and a dramatic erythropoiesis in the spleen.
    1. Chromosomes and Gene Expression
    2. Neuroscience

    Striking circadian neuron diversity and cycling of Drosophila alternative splicing

    Qingqing Wang et al.
    Diverse and widespread novel alternative pre-mRNA splicing isoforms as well as cycling alternative splicing events that undergo time-of-day dependent changes are identified in isolated Drosophila neuron groups.
    1. Biochemistry and Chemical Biology
    2. Physics of Living Systems

    Hsp70 chaperones are non-equilibrium machines that achieve ultra-affinity by energy consumption

    Paolo De Los Rios, Alessandro Barducci
    ATP consumption enables chaperones to exploit the different kinetic properties of their conformational states to exhibit a non-equilibrium affinity for their substrates that is orders of magnitude higher than its equilibrium value.
    1. Physics of Living Systems
    2. Structural Biology and Molecular Biophysics

    Efficient conversion of chemical energy into mechanical work by Hsp70 chaperones

    Salvatore Assenza et al.
    A multiscale modeling approach reveals how the energy from ATP hydrolysis is used by Hsp70 chaperones to remodel the conformation of their substrates through a novel force-generating mechanism.
    1. Cell Biology
    2. Developmental Biology

    Proteolytic processing of palmitoylated Hedgehog peptides specifies the 3-4 intervein region of the Drosophila wing

    Sabine Schürmann et al.
    Proteolysis of lipidated N-terminal peptides that tether Hedgehog morphogens to the surface of source cells is absolutely required for their coupled release and bioactivation in vivo in Drosophila melanogaster.
    1. Biochemistry and Chemical Biology
    2. Cell Biology

    A non-canonical mechanism for Crm1-export cargo complex assembly

    Ute Fischer et al.
    Slx9 is a newly discovered type of RanGTP-binding protein required for Crm1-mediated nuclear export.
    1. Immunology and Inflammation

    Crucial role for T cell-intrinsic IL-18R-MyD88 signaling in cognate immune response to intracellular parasite infection

    Ana-Carolina Oliveira et al.
    Development of a robust Th1 response to infection against an intracellular parasite requires T-cell intrinsic MyD88 signaling, mostly through the upstream IL-18 receptor, for the induction of genes involved in proliferation, cytokine production and migration.
    1. Structural Biology and Molecular Biophysics
    2. Computational and Systems Biology

    Modeling Hsp70/Hsp40 interaction by multi-scale molecular simulations and coevolutionary sequence analysis

    Duccio Malinverni et al.
    Integration of complementary computational approaches reveals an evolutionarily conserved interaction interface between molecular chaperones Hsp70 and Hsp40, rationalizing previous observations.
    1. Developmental Biology

    Cytoplasmic NOTCH and membrane-derived β-catenin link cell fate choice to epithelial-mesenchymal transition during myogenesis

    Daniel Sieiro et al.
    In chick skeletal muscle, an incoming signal leads to two interdependent outcomes: a cell fate change and an epithelial-mesenchymal transition.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Structural basis of death domain signaling in the p75 neurotrophin receptor

    Zhi Lin et al.
    Structures of the death domain of the p75 neurotrophin receptor in complex with downstream effectors show how competitive protein-protein interactions orchestrate the hierarchical activation of downstream pathways in non-catalytic receptors.

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