29 results found
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    The conserved aspartate ring of MCU mediates MICU1 binding and regulation in the mitochondrial calcium uniporter complex

    Charles B Phillips et al.
    Biochemical analysis reveals molecular mechanisms underlying the activation of the mitochondrial Ca2+ uniporter by intracellular Ca2+ signals.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Structural insights into the Ca2+-dependent gating of the human mitochondrial calcium uniporter

    Yan Wang et al.
    Cryo-EM structures of human MCU-EMRE-MICU1-MICU2 complex in the apo and Ca2+-bound states reveal how MICU1 and MICU2 impart their gating function to the mitochondrial calcium uniporter.
    1. Biochemistry and Chemical Biology

    Dual functions of a small regulatory subunit in the mitochondrial calcium uniporter complex

    Ming-Feng Tsai et al.
    Studies of EMRE, one of the four essential protein subunits in the mitochondrial calcium uniporter complex that regulates calcium ion levels in mitochondria, reveal new details about the physical interactions between the subunits.
    1. Structural Biology and Molecular Biophysics

    The mechanism of MICU-dependent gating of the mitochondrial Ca2+uniporter

    Vivek Garg et al.
    A comprehensive functional analysis of mitochondrial Ca2+ uniporter (MCU) demonstrates that the auxiliary MICU subunits potentiate Ca2+ transport via MCU.
    1. Biochemistry and Chemical Biology
    2. Cell Biology

    MCU encodes the pore conducting mitochondrial calcium currents

    Dipayan Chaudhuri et al.
    Genetic and electrophysiological experiments reveal that a gene called MCU encodes the ion channel pore that allows calcium ions to cross the inner mitochondrial membrane.
    1. Neuroscience

    The distinct roles of calcium in rapid control of neuronal glycolysis and the tricarboxylic acid cycle

    Carlos Manlio Díaz-García et al.
    When neurons are stimulated, calcium entry into mitochondria upregulates mitochondrial energy production, but glycolytic energy production in the cytosol is stimulated by elevated energy demand, not Ca2+ signaling.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Structures reveal gatekeeping of the mitochondrial Ca2+ uniporter by MICU1-MICU2

    Chongyuan Wang et al.
    Cryo-EM structures reveal that MICU1-MICU2 operates like a regulatable toxin to block the pore of the mitochondrial calcium uniporter and confer Ca2+-dependent control.
    1. Evolutionary Biology
    2. Genetics and Genomics

    Predominance of cis-regulatory changes in parallel expression divergence of sticklebacks

    Jukka-Pekka Verta, Felicity C Jones
    Cis-regulation such as enhancers and promoters plays a major role in parallel gene expression divergence and has features that make it a well-poised substrate for adaptive evolution.
    1. Cell Biology

    Mitochondrial flashes regulate ATP homeostasis in the heart

    Xianhua Wang et al.
    Mitochondrial flashes counteract the imbalance of ATP supply-and-demand and constitute an auto-regulator of ATP homeostasis in the heart.

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