702 results found
    1. Cell Biology

    The proteasome biogenesis regulator Rpn4 cooperates with the unfolded protein response to promote ER stress resistance

    Rolf M Schmidt et al.
    Endoplasmic reticulum stress in yeast activates not only the UPR but also Rpn4, promoting the clearance of misfolded proteins from the cytosol as part of a modular cross-compartment stress response.
    1. Biochemistry and Chemical Biology
    2. Computational and Systems Biology

    Protein biogenesis machinery is a driver of replicative aging in yeast

    Georges E Janssens et al.
    A comprehensive mapping of the proteome and transcriptome during the complete replicative lifespan of budding yeast predicted an increased abundance of the protein biogenesis machinery is most causal for aging.
    1. Cell Biology
    2. Microbiology and Infectious Disease

    The Lon protease temporally restricts polar cell differentiation events during the Caulobacter cell cycle

    Deike J Omnus et al.
    A proteomics-based approach identifies novel substrate proteins of the Lon protease in Caulobacter crescentus and reveals a critical role of Lon in regulating flagella assembly and stalk biogenesis during the cell cycle.
    1. Plant Biology

    SUMOylation contributes to proteostasis of the chloroplast protein import receptor TOC159 during early development

    Sonia Accossato et al.
    SUMOylation contributes to the fine-tuning of the proteostatic equilibrium of essential chloroplast protein import receptor TOC159 at early plant development.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Conformational switches control early maturation of the eukaryotic small ribosomal subunit

    Mirjam Hunziker et al.
    Mass spectrometry analysis of purified pre-ribosomal RNAs shows that stable ribosomal RNA domains independently recruit assembly factors, and the cryo-EM structure of the 5' ETS ribonucleoprotein reveals regulatory conformational switches.
    1. Biochemistry and Chemical Biology
    2. Cell Biology

    Processing of the ribosomal ubiquitin-like fusion protein FUBI-eS30/FAU is required for 40S maturation and depends on USP36

    Jasmin van den Heuvel et al.
    Endoproteolytic cleavage of the ribosomal precursor protein FUBI-eS30 is required for efficient maturation of small ribosomal subunits in the cytoplasm of human cells and involves the nucleolar deubiquitinase USP36.
    1. Plant Biology

    A multifaceted analysis reveals two distinct phases of chloroplast biogenesis during de-etiolation in Arabidopsis

    Rosa Pipitone et al.
    Serial-Block-Face Scanning Electron Microscopy (SBF-SEM) associated with biomolecular analysis show that chloroplast differentiation proceeds by distinct ‘structure establishment’ and ‘chloroplast proliferation’ phases, each with differential protein and lipid regulation.
    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. 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

    Mitochondrial biogenesis is transcriptionally repressed in lysosomal lipid storage diseases

    King Faisal Yambire et al.
    Transcription factors KLF2 and ETV1 repress the transcriptional program of mitochondrial biogenesis, resulting in impaired mitochondrial function in lysosomal storage diseases.

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