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    1. Immunology and Inflammation

    Mitochondrial Ca2+ and membrane potential, an alternative pathway for Interleukin 6 to regulate CD4 cell effector function

    Rui Yang et al.
    Interleukin 6 (IL-6) can mediate pathogenesis of autoimmune diseases through its effects on mitochondrial function.
    1. Biochemistry and Chemical Biology

    Ion Channels: Keeping a lid on calcium uptake

    Vivek Garg, Yuriy Kirichok
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    1. Cell Biology
    2. Neuroscience

    Pregnancy-associated plasma protein-aa regulates endoplasmic reticulum–mitochondria associations

    Mroj Alassaf, Mary C Halloran
    An extracellular modulator of IGF1 signaling, Pappaa, regulates endoplasmic reticulum–mitochondria connections, which are critical for metabolic homeostasis and hair cell survival.
    1. Cell Biology
    2. Neuroscience

    Presenilin mutations deregulate mitochondrial Ca2+ homeostasis and metabolic activity causing neurodegeneration in Caenorhabditis elegans

    Shaarika Sarasija et al.
    In C. elegans, presenilin functions, independent of its gamma-secretase proteolytic activity, to regulate mitochondrial metabolism by controlling ER-mitochondrial calcium transfer and, even in the absence of Abeta signaling, loss of this activity leads to neurodegeneration.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Cryo-EM structure of the calcium release-activated calcium channel Orai in an open conformation

    Xiaowei Hou et al.
    Structure of the Ca2+ channel Orai in an open conformation provides insights into the opening mechanism and the channel's role in regulating Ca2+ entry into immune and other non-excitable cells.
    1. Structural Biology and Molecular Biophysics

    Screening of candidate substrates and coupling ions of transporters by thermostability shift assays

    Homa Majd et al.
    It is technically difficult to identify transport proteins, but here a method is presented that exploits the principle that they are stabilized in detergent solution when they bind their substrate.
    1. Structural Biology and Molecular Biophysics

    Structure of Escherichia coli respiratory complex I reconstituted into lipid nanodiscs reveals an uncoupled conformation

    Piotr Kolata, Rouslan G Efremov
    The dynamic structure of respiratory complex I from mesophilic bacterium is revealed and demonstrates existence of uncoupled conformations in the bacterial complex.
    1. Biochemistry and Chemical Biology

    Skd3 (human ClpB) is a potent mitochondrial protein disaggregase that is inactivated by 3-methylglutaconic aciduria-linked mutations

    Ryan R Cupo, James Shorter
    Skd3 (human ClpB) is a potent ATP-dependent mitochondrial protein disaggregase that is activated by the rhomboid protease, PARL, and inactivated by MGCA7-linked mutations.
    1. Cell Biology

    Control of cell death/survival balance by the MET dependence receptor

    Leslie Duplaquet et al.
    MET acts as a dependence receptor in vivo by promoting hepatocyte apoptosis, a response induced by a caspase generated fragment able to favor calcium exchange between endoplasmic reticulum and mitochondria.
    1. Structural Biology and Molecular Biophysics

    Structure of the human epithelial sodium channel by cryo-electron microscopy

    Sigrid Noreng et al.
    The first structure of the human epithelial sodium channel provides vital insight into the assembly, stoichiometry and molecular mechanism of the ion channel central to sodium homeostasis.