253 results found
    1. Biochemistry and Chemical Biology
    2. Cell Biology

    Quantitative proteomics reveals the selectivity of ubiquitin-binding autophagy receptors in the turnover of damaged lysosomes by lysophagy

    Vinay V Eapen et al.
    A combination of spatial proteomic and autophagic flux approaches was used to reveal the landscape of turnover of damaged lysosomes, demonstrating a key role for the autophagy receptor TAX1BP1 and its associated kinase TBK1 in both HeLa cells and iNeurons.
    1. Biochemistry and Chemical Biology

    HspB8 prevents aberrant phase transitions of FUS by chaperoning its folded RNA-binding domain

    Edgar E Boczek et al.
    Quantitative time-resolved crosslinking mass spectrometry is developed to monitor protein interactions and dynamics inside molecular condensates and used to identify misfolding of the RNA-binding domain of FUS as a key driver of condensate-aging.
    1. Neuroscience
    2. Structural Biology and Molecular Biophysics

    TMEM120A contains a specific coenzyme A-binding site and might not mediate poking- or stretch-induced channel activities in cells

    Yao Rong et al.
    Electrophysiological and structural characterizations reveal that a previously proposed ion channel responsible for sensing mechanical pain is insensitive to poking or stretching stimuli for conducting ions and may serve as a coenzyme A-binding protein instead.
    1. Medicine

    Aorta smooth muscle-on-a-chip reveals impaired mitochondrial dynamics as a therapeutic target for aortic aneurysm in bicuspid aortic valve disease

    Mieradilijiang Abudupataer et al.
    An aorta smooth muscle-on-a-chip model indicated that NOTCH1 insufficiency in HAoSMCs induced phenotypic switching from a contractile to a synthetic phenotype accompanied by an impairment of mitochondrial fusion, implying its potential role as a therapeutic target for BAV-TAA.
    1. Chromosomes and Gene Expression

    SUV39 SET domains mediate crosstalk of heterochromatic histone marks

    Alessandro Stirpe et al.
    Clr4, a highly conserved SUV39 histone methyltransferase, requires its SET domain to sense histone H3K14 ubiquitination in order to maintain heterochromatin and H3K9 methylation.
    1. Biochemistry and Chemical Biology
    2. Microbiology and Infectious Disease

    An essential, kinetoplastid-specific GDP-Fuc: β-D-Gal α-1,2-fucosyltransferase is located in the mitochondrion of Trypanosoma brucei

    Giulia Bandini et al.
    The activity, localization, and essentiality of TbFUT1, together with its ability to complement Leishmania parasites lacking the homologous gene, suggest the presence of an uncommon and conserved mitochondrial fucosylation pathway required for kinetoplastid parasites viability.
    1. Biochemistry and Chemical Biology

    Concerted conformational dynamics and water movements in the ghrelin G protein-coupled receptor

    Maxime Louet et al.
    A combination of state-of-the-art biochemical, biophysical, and computational methods revealed that water molecules play a central role in signal propagation through G protein-coupled receptors.
    1. Immunology and Inflammation

    HIF1α is required for NK cell metabolic adaptation during virus infection

    Francisco Victorino et al.
    During pathogen infection, natural killer cells require hypoxia-inducible factor-1α for optimal metabolism to prevent apoptosis, thereby reducing viral load and protecting against morbidity.
    1. Developmental Biology

    Naa12 compensates for Naa10 in mice in the amino-terminal acetylation pathway

    Hyae Yon Kweon et al.
    Mice doubly deficient for Naa10 and Naa12 display embryonic lethality, with both enzymes compensating for each other with amino-terminal acetylation of proteins in mouse development.
    1. Cell Biology

    Selective dephosphorylation by PP2A-B55 directs the meiosis I-meiosis II transition in oocytes

    S Zachary Swartz et al.
    Time-course phosphoproteomics reveals that selective dephosphorylation is critical for directing the MI/MII transition and that, through its inherent phospho-threonine preference, PP2A-B55 imposes specific phosphoregulated behaviors that distinguish the two meiotic divisions.

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