18 results found
    1. Biochemistry and Chemical Biology

    The linear ubiquitin chain assembly complex (LUBAC) generates heterotypic ubiquitin chains

    Alan Rodriguez Carvajal et al.
    The E3 ubiquitin ligase complex linear ubiquitin chain assembly complex (LUBAC) forms a branched chain on linear ubiquitin chains depending on the RING-in-between-RING-type E3 ligase heme-oxidized IRP2 ubiquitin ligase 1 (HOIL-1L).
    1. Biochemistry and Chemical Biology
    2. Cell Biology

    Doa10 is a membrane protein retrotranslocase in ER-associated protein degradation

    Claudia C Schmidt et al.
    Doa10, a membrane-embedded ubiquitin ligase, facilitates the removal of membrane proteins from the endoplasmic reticulum and cooperates with the Cdc48 ATPase in this process.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Moyamoya disease factor RNF213 is a giant E3 ligase with a dynein-like core and a distinct ubiquitin-transfer mechanism

    Juraj Ahel et al.
    RNF213 is a giant E3 ligase with a dynein-like core and a unique ubiquitination mechanism that proceeds in a RING-independent manner and is linked with the Moyamoya disease.
    1. Cell Biology

    A protein quality control pathway at the mitochondrial outer membrane

    Meredith B Metzger et al.
    Temperature-sensitive mitochondrial outer membrane proteins used as novel quality control substrates reveal a unique mitochondria-associated degradation pathway consisting of both cytosolic and mitochondrial ubiquitin-proteasome system machinery.
    1. Biochemistry and Chemical Biology
    2. Cell Biology

    Robust cullin-RING ligase function is established by a multiplicity of poly-ubiquitylation pathways

    Spencer Hill et al.
    Human cullin-RING ligases are buffered to a much greater extent than had been previously appreciated, and the roles of ubiquitin chain extension enzymes are far more nuanced at physiological concentrations.
    1. Cell Biology

    Cooperation of mitochondrial and ER factors in quality control of tail-anchored proteins

    Verena Dederer et al.
    The endoplasmic reticulum E3 ubiquitin ligase Doa10 and the mitochondrial AAA-ATPase Msp1 govern targeting fidelity of outer mitochondrial tail-anchored proteins by controlling cytoplasmic concentration and extracting mistargeted and orphan species.
    1. Biochemistry and Chemical Biology
    2. Genetics and Genomics

    Genetic analysis reveals functions of atypical polyubiquitin chains

    Fernando Meza Gutierrez et al.
    A comprehensive genetic interaction screen uncovered biological roles of K11 linkages in amino acid homeostasis and cell cycle regulation in yeast.
    1. Biochemistry and Chemical Biology
    2. Cancer Biology

    UBE2G1 governs the destruction of cereblon neomorphic substrates

    Gang Lu et al.
    Cereblon-based small-molecule degraders rely on the sequential action of ubiquitin-conjugating enzymes UBE2G1 and UBE2D3 to assemble K48-linked polyubiquitin chains on cereblon neomorphic substrates, resulting in their proteasomal degradation.
    1. Structural Biology and Molecular Biophysics

    Insights into the ubiquitin transfer cascade catalyzed by the Legionella effector SidC

    David Jon Wasilko et al.
    Structural and biochemical studies reveal the molecular mechanisms for ubiquitin transfer by two unique bacterial ubiquitin E3 ligases.
    1. Biochemistry and Chemical Biology
    2. Cell Biology

    The multi-subunit GID/CTLH E3 ubiquitin ligase promotes cell proliferation and targets the transcription factor Hbp1 for degradation

    Fabienne Lampert et al.
    Proteomic, biochemical and cell-based analyses of the heterodecameric core GID/CTLH E3 ligase complex reveal its molecular architecture, activity determinants, and function in targeting the tumor suppressor Hbp1 and other substrates required for cell proliferation.

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