269 results found
    1. Cell Biology
    2. Developmental Biology

    Endosomal-lysosomal organellar assembly (ELYSA) structures coordinate lysosomal degradation systems through mammalian oocyte-to-embryo transition

    Yuhkoh Satouh, Takaki Tatebe ... Ken Sato
    Imaging and correlative light and electron microscopy analyses of endosomal-lysosomal organellar assembly in mammalian oocytes elucidated statistic alteration in their size, distribution, and correlation with endo-lysosomal maturation during oocyte-to-embryo transition.
    1. Genetics and Genomics

    miR-1 coordinately regulates lysosomal v-ATPase and biogenesis to impact proteotoxicity and muscle function during aging

    Isabelle Schiffer, Birgit Gerisch ... Adam Antebi
    Coordinate control of lysosomal v-ATPase subunits and biogenesis factor TFEB by miR-1 identifies a key regulatory axis with strong links to age-related proteotoxic disease.
    1. Neuroscience

    UBE3A-mediated p18/LAMTOR1 ubiquitination and degradation regulate mTORC1 activity and synaptic plasticity

    Jiandong Sun, Yan Liu ... Xiaoning Bi
    A new mechanism linking lysosomes to mTOR regulation and synaptic plasticity involves p18 ubiquitination by Ube3a, and underlies some of the pathology observed in Angelman syndrome.
    1. Cell Biology

    Quantitative glycoproteomics reveals cellular substrate selectivity of the ER protein quality control sensors UGGT1 and UGGT2

    Benjamin M Adams, Nathan P Canniff ... Daniel N Hebert
    Natural substrates of the central endoplasmic reticulum quality control glycoprotein sensors UDP-glucose:glycoproteinglucosyltransferase (UGGT)1 and UGGT2 were identified using a glycoproteomics approach and the role for their modification was explored.
    1. Cell Biology

    A genetic screen identifies new steps in oocyte maturation that enhance proteostasis in the immortal germ lineage

    Madhuja Samaddar, Jérôme Goudeau ... Cynthia Kenyon
    A whole-genome genetic screen links new aspects of oocyte maturation to proteostasis renewal in the immortal Caenorhabditis elegans germ-cell lineage and reveals similarities to somatic cell maintenance during aging.
    1. Cell Biology

    trim-21 promotes proteasomal degradation of CED-1 for apoptotic cell clearance in C. elegans

    Lei Yuan, Peiyao Li ... Hui Xiao
    The phagocytic receptor CED-1 is kept at the appropriate level by E3 ligase trim-21-mediated ubiquitination-proteasomal degradation for apoptotic cell clearance, which is independent of retromer-dependent recycling and lysosomal degradation.
    1. Cell Biology
    2. Neuroscience

    VCP-dependent muscle degeneration is linked to defects in a dynamic tubular lysosomal network in vivo

    Alyssa E Johnson, Huidy Shu ... Graeme W Davis
    The AAA-ATPase VCP sustains sarcoplasmic proteostasis, in part, by controlling autophagosome-lysosome fusion and the integrity of a dynamic tubular lysosomal network.
    1. Cell Biology

    Organelle proteomic profiling reveals lysosomal heterogeneity in association with longevity

    Yong Yu, Shihong M Gao ... Meng C Wang
    First systemic lysosomal proteomes in association with longevity and tissue specificity in C. elegans uncover lysosomal heterogeneity across multiple scales and provide valuable resources for understanding how lysosomes modulate signal transduction, organelle communication, tissue physiology, and organism longevity.
    1. Biochemistry and Chemical Biology
    2. Cell Biology

    Phosphorylation of iRhom2 at the plasma membrane controls mammalian TACE-dependent inflammatory and growth factor signalling

    Adam Graham Grieve, Hongmei Xu ... Matthew Freeman
    The iRhom2 protein, a catalytically inactive relative of rhomboid proteases, controls inflammation and growth factor signalling by acting as an essential multifunctional regulatory subunit of the cell surface shedding protease TACE (ADAM17).
    1. Cell Biology

    High lumenal chloride in the lysosome is critical for lysosome function

    Kasturi Chakraborty, KaHo Leung, Yamuna Krishnan
    Lysosomes are highly enriched in chloride, which is essential for their degradative function.

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