14 results found
    1. Structural Biology and Molecular Biophysics

    A conformational switch regulates the ubiquitin ligase HUWE1

    Bodo Sander et al.
    The cancer-associated human ubiquitin ligase HUWE1 can adopt an auto-inhibited dimeric state, whose occupancy is regulated by competing intra- and intermolecular interactions of the dimerization region and by the tumor suppressor p14ARF.
    1. Biochemistry and Chemical Biology
    2. Developmental Biology

    A specific E3 ligase/deubiquitinase pair modulates TBP protein levels during muscle differentiation

    Li Li et al.
    Proteasome-mediated degradation of the TATA-box binding protein (TBP) during terminal differentiation is regulated by the E3 ligase Huwe1 and the deubiquitinase USP10.
    1. Genetics and Genomics

    Comparative genetic screens in human cells reveal new regulatory mechanisms in WNT signaling

    Andres M Lebensohn et al.
    A systematic genetic analysis comprising seven genome-wide screens in haploid human cells uncovered new regulatory mechanisms at most levels in the WNT signaling pathway.
    1. Cancer Biology

    MARCH5 mediates NOXA-dependent MCL1 degradation driven by kinase inhibitors and integrated stress response activation

    Seiji Arai et al.
    MARCH5 mediates a pathway driving MCL1 degradation in response to cellular stress, which sensitizes to BH3 mimetic drugs targeting BCLXL and provides a broadly effective therapeutic strategy for solid tumors.
    1. Cell Biology

    The nucleolar protein NIFK promotes cancer progression via CK1α/β-catenin in metastasis and Ki-67-dependent cell proliferation

    Tsung-Chieh Lin et al.
    NIFK promotes lung cancer metastasis via Runx1-dependent repression of CK1α, which activates TCF4/β-catenin signaling.
    1. Stem Cells and Regenerative Medicine

    The CUL4-DDB1 ubiquitin ligase complex controls adult and embryonic stem cell differentiation and homeostasis

    Jie Gao et al.
    DDB1, a component of the ubiquitin proteasome system, plays a role in both hematopoietic and embryonic stem cell self-renewal and differentiation.
    1. Chromosomes and Gene Expression
    2. Genetics and Genomics

    MOF-associated complexes ensure stem cell identity and Xist repression

    Tomasz Chelmicki et al.
    Two complexes that contain the histone acetyl transferase MOF engage in a two-pronged approach to ensure the repression of X inactivation in mouse embryonic stem cells.
    1. Neuroscience
    2. Stem Cells and Regenerative Medicine

    Id4 promotes the elimination of the pro-activation factor Ascl1 to maintain quiescence of adult hippocampal stem cells

    Isabelle Maria Blomfield et al.
    Genetic and protein analyses in vitro and in vivo identifies Id4 as a novel regulator of stem cell quiescence in the adult hippocampus.
    1. Stem Cells and Regenerative Medicine
    2. Genetics and Genomics

    Mobilization of LINE-1 retrotransposons is restricted by Tex19.1 in mouse embryonic stem cells

    Marie MacLennan et al.
    Post-translational regulation of retrotransposons plays a key role in preventing retrotransposon mobilization in the epigenetically dynamic mouse germline.
    1. Biochemistry and Chemical Biology
    2. Cell Biology

    Distinct transcriptional responses elicited by unfolded nuclear or cytoplasmic protein in mammalian cells

    Yusuke Miyazaki et al.
    A new unfolded protein response has been discovered that is distinct from the heat shock response and protects mammalian cells from proteotoxic stress.

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