257 results found
    1. Cell Biology

    Negative regulation of autophagy by UBA6-BIRC6–mediated ubiquitination of LC3

    Rui Jia, Juan S Bonifacino
    An ensemble of the ubiquitin-activating enzyme UBA6 and ubiquitin-conjugating enzyme/ubiquitin-ligase BIRC6 mediates ubiquitination of LC3, targeting the latter for proteasomal degradation and thus attenuating autophagic degradation of cellular substrates.
    1. Biochemistry and Chemical Biology
    2. Cell Biology

    Intracellular cholesterol trafficking is dependent upon NPC2 interaction with lysobisphosphatidic acid

    Leslie A McCauliff et al.
    Sterol kinetics and cell-based assays reveal a heretofore unknown step in cholesterol trafficking through the endolysosomal compartment, involving a direct functional interaction between NPC2 and lysosbisphosphatidic acid.
    1. Biochemistry and Chemical Biology

    PPM1H phosphatase counteracts LRRK2 signaling by selectively dephosphorylating Rab proteins

    Kerryn Berndsen et al.
    PPM1H protein phosphatase dephosphorylates Rab proteins modulating LRRK2 signalling.
    1. Developmental Biology
    2. Genetics and Genomics

    The GATOR complex regulates an essential response to meiotic double-stranded breaks in Drosophila

    Youheng Wei et al.
    The GATOR complex regulates TORC1 activity during meiosis.
    1. Epidemiology and Global Health
    2. Human Biology and Medicine

    Discovery proteomics in aging human skeletal muscle finds change in spliceosome, immunity, proteostasis and mitochondria

    Ceereena Ubaida-Mohien et al.
    The changes in the skeletal muscle proteome with age indicate the roots of the decline in muscle function with age.
    1. Cell Biology

    Selective clearance of the inner nuclear membrane protein emerin by vesicular transport during ER stress

    Abigail Buchwalter et al.
    Emerin, a protein that plays key roles in nuclear organization, can be dynamically degraded in response to environmental stimuli such as ER stress.
    1. Biochemistry and Chemical Biology
    2. Cell Biology

    Endothelial PKA activity regulates angiogenesis by limiting autophagy through phosphorylation of ATG16L1

    Xiaocheng Zhao et al.
    The cAMP-dependent protein kinase A controls the switch from actively sprouting new blood vessel formation to vessel quiescence by reducing endothelial autophagy through phosphorylation-mediated destabilisation of ATG16L1.
    1. Cell Biology
    2. Genetics and Genomics

    The Mars1 kinase confers photoprotection through signaling in the chloroplast unfolded protein response

    Karina Perlaza et al.
    A genetic screen in a unicellular photosynthetic organism uncovers the first essential signaling component in the chloroplast unfolded protein response that relays information from the chloroplast to the nuclear compartment.
    1. Neuroscience

    Metabolic stress is a primary pathogenic event in transgenic Caenorhabditis elegans expressing pan-neuronal human amyloid beta

    Emelyne Teo et al.
    Metabolic defects following expression of Aβ1-42 in nematode neurons are partially caused by inactivation of alpha-ketoglutarate dehydrogenase and can be rescued by Metformin.
    1. Immunology and Inflammation

    High-endothelial cell-derived S1P regulates dendritic cell localization and vascular integrity in the lymph node

    Szandor Simmons et al.
    Impairment of the autocrine S1PR1-Gi signaling on HEVs results in high-endothelial cell apoptosis, reduced CCL21-secretion from HEVs, and cessation of HEV-DC interactions and lymphocyte immigration across the high-endothelial barrier.

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