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    1. Cell Biology
    2. Neuroscience

    Tissue acidosis induces neuronal necroptosis via ASIC1a channel independent of its ionic conduction

    Yi-Zhi Wang et al.
    An interaction between the ion channel ASIC1a and the protein RIP1 is responsible for neuronal death caused by tissue acidosis.
    1. Neuroscience

    Decoding a neural circuit controlling global animal state in C. elegans

    Patrick Laurent et al.
    Sensory neurons that monitor ambient oxygen control a cascade of responses across multiple layers of interneurons to switch the global state of the nematode C. elegans, reprogramming behavior and gene expression to enable escape from or adaptation to surface exposure.
    1. Biochemistry and Chemical Biology

    Evolutionary and functional insights into the mechanism underlying body-size-related adaptation of mammalian hemoglobin

    Olga Rapp, Ofer Yifrach
    Hemoglobin affinity and cooperativity reveal mechanistic insights in how the relation between physiology and evolutionary variations shape a protein's molecular property.
    1. Biochemistry and Chemical Biology

    Lack of activity of recombinant HIF prolyl hydroxylases (PHDs) on reported non-HIF substrates

    Matthew E Cockman et al.
    Assays using recombinant HIF prolyl hydroxylases did not support hydroxylation of more than 20 reported non-HIF substrates under conditions where robust HIF hydroxylation was observed.
    1. Immunology and Inflammation
    2. Neuroscience

    Neutrophils promote CXCR3-dependent itch in the development of atopic dermatitis

    Carolyn M Walsh et al.
    Neutrophils are essential for itch in a mouse model of atopic dermatitis, and promote the transition from acute to chronic itch via induction of CXCL10/CXCR3 signaling.
    1. Microbiology and Infectious Disease

    An orphan cbb3-type cytochrome oxidase subunit supports Pseudomonas aeruginosa biofilm growth and virulence

    Jeanyoung Jo et al.
    During growth in biofilms and host infection, the opportunistic pathogen Pseudomonas aeruginosa employs respiratory heterocomplexes that support extracellular electron shuttling and pathogenicity.
    1. Biochemistry and Chemical Biology

    Mechanisms of iron- and O2-sensing by the [4Fe-4S] cluster of the global iron regulator RirA

    Ma Teresa Pellicer Martinez et al.
    Molecular details of how the iron–sulfur cluster cofactor of a bacterial global iron regulatory protein simultaneously senses iron and O2 are revealed by mass spectrometry and spectroscopy.
    1. Developmental Biology

    HIF-2α is essential for carotid body development and function

    David Macias et al.
    Genetic and physiological analyses demonstrate the essential role of the transcription factor HIF-2alpha in the sympathetic nervous system control of the ventilatory response to hypoxia.
    1. Evolutionary Biology
    2. Microbiology and Infectious Disease

    Insight into the evolution of microbial metabolism from the deep-branching bacterium, Thermovibrio ammonificans

    Donato Giovannelli et al.
    The genome of Thermovibrio ammonificans encodes ancestral pathways (e.g., hydrogen oxidation) and more recently acquired ones (e.g., nitrate reduction) and a hybrid pathway for CO2 fixation.
    1. Structural Biology and Molecular Biophysics
    2. Biochemistry and Chemical Biology

    Structural mechanism of ligand activation in human calcium-sensing receptor

    Yong Geng et al.
    L-amino acids are agonists of calcium-sensing receptor, and act jointly with calcium and phosphate ions to control receptor function.