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    1. Structural Biology and Molecular Biophysics

    Characterization of the kinetic cycle of an ABC transporter by single-molecule and cryo-EM analyses

    Ling Wang, Zachary Lee Johnson ... Shixin Liu
    The conformational dynamics of multidrug resistance protein 1 (MRP1) are tracked in real time by single-molecule fluorescence resonance energy transfer experiments, which elucidate the rate-limiting mechanism of MRP1's transport cycle.
    1. Cell Biology

    Actin filaments target the oligomeric maturation of the dynamin GTPase Drp1 to mitochondrial fission sites

    Wei-ke Ji, Anna L Hatch ... Henry N Higgs
    A key cellular process is controlled by altering a balance, rather than through an off/on mechanism.
    1. Neuroscience

    LRP1 regulates peroxisome biogenesis and cholesterol homeostasis in oligodendrocytes and is required for proper CNS myelin development and repair

    Jing-Ping Lin, Yevgeniya A Mironova ... Roman J Giger
    In oligodendrocyte progenitor cells, lipid metabolism and peroxisome biogenesis are regulated by the low-density lipoprotein related-receptor-1, and if disrupted, impair proper white matter development and adult repair.
    1. Developmental Biology
    2. Genetics and Genomics

    Urotensin II-related peptides, Urp1 and Urp2, control zebrafish spine morphology

    Elizabeth A Bearce, Zoe H Irons ... Daniel T Grimes
    Urp1 and Urp2 peptides, expressed in CSF-contacting neurons in the spinal canal, prevent abnormal curvature of the zebrafish spine.
    1. Developmental Biology
    2. Neuroscience

    Role of Nrp1 in controlling cortical inter-hemispheric circuits

    Fernando Martín-Fernández, Ana Bermejo-Santos ... Marta Nieto
    Transient expression of Nrp1 is required in postnatal stages for terminal arborization and innervation of secondary areas during the development of somatosensory callosal circuits.
    1. Cell Biology

    Unfolded protein response transducer IRE1-mediated signaling independent of XBP1 mRNA splicing is not required for growth and development of medaka fish

    Tokiro Ishikawa, Makoto Kashima ... Kazutoshi Mori
    The unfolded protein response sensor/transducer IRE1-mediated splicing of XBP1 mRNA encoding its active downstream transcription factor to maintain the homeostasis of the endoplasmic reticulum is sufficient for growth and development of medaka fish.
    1. Neuroscience

    Drp1 is required for AgRP neuronal activity and feeding

    Sungho Jin, Nal Ae Yoon ... Sabrina Diano
    Mitochondrial fission, associated with fatty acids oxidation, is fundamental for AgRP neuronal activity during negative energy balance and in regulating fasting- and/or ghrelin-induced feeding.
    1. Chromosomes and Gene Expression
    2. Genetics and Genomics

    Dcp2 C-terminal cis-binding elements control selective targeting of the decapping enzyme by forming distinct decapping complexes

    Feng He, Chan Wu, Allan Jacobson
    Dcp2 C-terminal domain cis-regulatory elements collaborating with specific activators control decapping enzyme targeting and activation by orchestrating sequential assembly of distinct decapping complexes.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    tRNA ligase structure reveals kinetic competition between non-conventional mRNA splicing and mRNA decay

    Jirka Peschek, Peter Walter
    Interconnected RNA processing mechanisms ensure the fidelity of non-conventional mRNA splicing during the unfolded protein response.
    1. Developmental Biology
    2. Neuroscience

    Regulation of mitochondria-dynactin interaction and mitochondrial retrograde transport in axons

    Catherine M Drerup, Amy L Herbert ... Alex V Nechiporuk
    Actr10, a dynactin pointed end protein, is essential for mitochondrial interaction with the dynein-dynactin retrograde motor and subsequent transport.