68 results found
    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. Structural Biology and Molecular Biophysics

    Lys63-linked ubiquitin chain adopts multiple conformational states for specific target recognition

    Zhu Liu et al.
    Lys63-linked diubiquitin exists as an ensemble of conformational states, each responsible for binding to a target protein through conformational selection.
    1. Cell Biology

    COPI mediates recycling of an exocytic SNARE by recognition of a ubiquitin sorting signal

    Peng Xu et al.
    COPI vesicle coat protein recognizes a ubiquitin sorting signal on an exocytic v-SNARE to mediate recycling.
    1. Biochemistry and Chemical Biology
    2. Cell Biology

    The E3 ubiquitin ligase TRIM23 regulates adipocyte differentiation via stabilization of the adipogenic activator PPARγ

    Masashi Watanabe et al.
    TRIM23 plays a critical role in the switching from early to late adipogenic enhanceosomes by stabilizing the PPARγ protein.
    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. Cell Biology

    Identification of ubiquitin Ser57 kinases regulating the oxidative stress response in yeast

    Nathaniel L Hepowit et al.
    Ser57 phosphorylation of ubiquitin protects the cell during proteotoxic stress.
    1. Biochemistry and Chemical Biology

    Bacterial OTU deubiquitinases regulate substrate ubiquitination upon Legionella infection

    Donghyuk Shin et al.
    A novel class of bacterial OTU deubiquitinases provides insights on the distinct roles of bacterial deubiquitinases in host–pathogen interactions.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Mechanism of ubiquitin ligation and lysine prioritization by a HECT E3

    Hari B Kamadurai et al.
    Structural studies reveal the mechanism by which a HECT E3 ubiquitin ligase carries out E2-to-E3-to-substrate ubiquitin transfer and prioritizes target lysines for ubiquitination.
    1. Cell Biology
    2. Immunology and Inflammation

    MAVS recruits multiple ubiquitin E3 ligases to activate antiviral signaling cascades

    Siqi Liu et al.
    A cell-free system combined with cell-based assays elucidate the biochemical mechanism of signal transduction mediated by the mitochondrial protein MAVS and delineates the role of ubiquitin E3 ligases in antiviral innate immune responses.
    1. Microbiology and Infectious Disease

    Interplay between bacterial deubiquitinase and ubiquitin E3 ligase regulates ubiquitin dynamics on Legionella phagosomes

    Shuxin Liu et al.
    A novel bacterial deubiquitinase with multiple chain types specificity regulates the association of ubiquitinated proteins on the phagosome of Legionella pneumophila.

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