10,284 results found
    1. Immunology and Inflammation

    Na+ influx via Orai1 inhibits intracellular ATP-induced mTORC2 signaling to disrupt CD4 T cell gene expression and differentiation

    Yong Miao et al.
    Non-specific sodium entry inhibits T cell receptor induced gene expression and differentiation of T cells by depleting intracellular ATP and disrupting mTORC2 dependent signalling axis.
    1. Microbiology and Infectious Disease

    Temporal proteomic analysis of HIV infection reveals remodelling of the host phosphoproteome by lentiviral Vif variants

    Edward JD Greenwood et al.
    A comprehensive whole cell proteomic map describing expression time courses of >6,500 viral and cellular proteins during HIV infection identifies Vif-dependent antagonism of key cellular phosphatase PP2A.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Topoisomerase VI senses and exploits both DNA crossings and bends to facilitate strand passage

    Timothy J Wendorff, James M Berger
    The engagement of DNA crossings is shown to license ATP hydrolysis and DNA cleavage by topoisomerase VI, a finding with mechanistic ramifications for related GHKL ATPases and meiotic recombination machineries.
    1. Microbiology and Infectious Disease

    Antagonism of PP2A is an independent and conserved function of HIV-1 Vif and causes cell cycle arrest

    Sara Marelli et al.
    Systematic screen of HIV-1 Vif mutants identifies synthetic and naturally occurring amino acid polymorphisms separating PPP2R5 and APOBEC3 family protein depletion and uncovers the mechanism of Vif-dependent cell cycle arrest.
    1. Structural Biology and Molecular Biophysics

    Structure analyses reveal a regulated oligomerization mechanism of the PlexinD1/GIPC/myosin VI complex

    Guijun Shang et al.
    PlexinD1 binding releases GIPC autoinhibition, leading to formation of high-order oligomers of the GIPC/myosin VI complex.
    1. Biochemistry and Chemical Biology
    2. Computational and Systems Biology

    Comprehensive exploration of the translocation, stability and substrate recognition requirements in VIM-2 lactamase

    John Z Chen et al.
    Comprehensive mutational characterisation of VIM-2 metallo-beta-lactamase deciphered the residues responsible for key functional behavior, including translocation, stability, substrate recognition and catalysis.
    1. Structural Biology and Molecular Biophysics

    Cryo-EM structures reveal specialization at the myosin VI-actin interface and a mechanism of force sensitivity

    Pinar S Gurel et al.
    Cryo-EM structures of actomyosin VI in multiple nucleotide states reveal a unique actin-myosin interface and a mechanism of force-sensitivity; furthermore, myosin VI remodels F-actin, suggesting a role for actin structural plasticity during force generation.
    1. Medicine
    2. Immunology and Inflammation

    HIF-1α regulates IL-1β and IL-17 in sarcoidosis

    Jaya Talreja et al.
    Sarcoidosis, a granulomatous disease characterized by macrophage and T-cell activation, is found to be associated with increased HIF-1α transcriptional activity, and modulation of HIF-1α regulates inflammatory immune responses.
    1. Neuroscience

    Gustatory-mediated avoidance of bacterial lipopolysaccharides via TRPA1 activation in Drosophila

    Alessia Soldano et al.
    Fruit flies can taste and avoid food contaminated with a bacterial toxin using the same channel protein that functions in humans as sensor of noxious chemical stimuli.
    1. Neuroscience
    2. Structural Biology and Molecular Biophysics

    Modulation of the Erwinia ligand-gated ion channel (ELIC) and the 5-HT3 receptor via a common vestibule site

    Marijke Brams et al.
    Development of nanobodies against a model pentameric ligand-gated ion channel demonstrates they can be functionally active as negative or positive allosteric modulators and offers opportunities for future drug development.

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