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

    Cell-based HTS identifies a chemical chaperone for preventing ER protein aggregation and proteotoxicity

    Keisuke Kitakaze et al.
    Cell-based high-throughput screening identifies IBT21 as a chemical chaperone, that inhibits ER protein aggregation and prevents the cell death caused by a proteotoxin, the aggregation-prone prion protein.
    1. Biochemistry and Chemical Biology
    2. Cell Biology

    Proteotoxicity from aberrant ribosome biogenesis compromises cell fitness

    Blake W Tye et al.
    Rapidly proliferating cells are at risk of compromised cell fitness due to proteostasis collapse from perturbations that interfere with ribosome biogenesis.
    1. Cell Biology

    Nuclear export of misfolded SOD1 mediated by a normally buried NES-like sequence reduces proteotoxicity in the nucleus

    Yongwang Zhong et al.
    Cellular and genetic approaches reveal that exposure of a normally buried nuclear export signal (NES)-like sequence mediates export of ALS-linked mutant and misfolded wild-type SOD1 to the cytoplasm by CRM1.
    1. Biochemistry and Chemical Biology
    2. Cell Biology

    Control of the structural landscape and neuronal proteotoxicity of mutant Huntingtin by domains flanking the polyQ tract

    Koning Shen et al.
    The polyQ tract of pathogenic Huntingtin causes aggregation when expanded in Huntington’s disease, but its two flanking domains control its conformational landscape, proteostasis and neurotoxicity.
    1. Chromosomes and Gene Expression

    The genetic basis of aneuploidy tolerance in wild yeast

    James Hose et al.
    A single gene allele underlies differences in aneuploidy tolerance in yeast.
    1. Cell Biology

    Inadequate BiP availability defines endoplasmic reticulum stress

    Milena Vitale et al.
    The extent of (proteotoxic) endoplasmic reticulum stress, and the ensuing unfolded protein response activation, are commensurate with the extent of the chaperone BiP being sequestered by its client proteins.
    1. Biochemistry and Chemical Biology
    2. Evolutionary Biology

    Functional trade-offs and environmental variation shaped ancient trajectories in the evolution of dim-light vision

    Gianni M Castiglione, Belinda SW Chang
    The evolution of the light-sensitive visual pigment rhodopsin involved functional tradeoffs that may have sacrificed rod photosensitivity for active-state protein stability to mitigate phototoxicity in tetrapods, but not in fishes.
    1. Microbiology and Infectious Disease
    2. Physics of Living Systems

    The transpeptidase PBP2 governs initial localization and activity of the major cell-wall synthesis machinery in E. coli

    Gizem Özbaykal et al.
    For initiation of cell-wall insertion, the cross-linking enzyme PBP2 stably binds to a component of the cell envelope that is different from MreB filaments.
    1. Biochemistry and Chemical Biology
    2. Physics of Living Systems

    Optical estimation of absolute membrane potential using fluorescence lifetime imaging

    Julia R Lazzari-Dean et al.
    Fluorescence lifetime imaging microscopy, paired with fluorescent, voltage-sensitive dyes, provides a method for measuring and quantifying membrane potentials of living cells.

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