259 results found
    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. Biochemistry and Chemical Biology
    2. Microbiology and Infectious Disease

    Discovery of a small molecule that inhibits bacterial ribosome biogenesis

    Jonathan M Stokes et al.
    The anticonvulsant drug lamotrigine inhibits bacterial ribosome biogenesis and reveals an unexplored role for initiation factor 2 (IF2) in ribosome assembly.
    1. Neuroscience

    Downregulation of ribosome biogenesis during early forebrain development

    Kevin F Chau et al.
    Unbiased transcriptome analyses reveal that neural progenitor cells downregulate protein biosynthetic machinery during early forebrain development, and this fundamental process matches proteomic changes in the adjacent cerebrospinal fluid and is regulated in part by MYC.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Cryo-EM structure of a late pre-40S ribosomal subunit from Saccharomyces cerevisiae

    André Heuer et al.
    Near atomic resolution of late 40S ribosomal subunit assembly by cryo-EM reveals immature rRNA active sites stabilized by biogenesis factors.
    1. Genetics and Genomics

    Natural variation in sugar tolerance associates with changes in signaling and mitochondrial ribosome biogenesis

    Richard G Melvin et al.
    The optimal macronutrient composition, macronutrient space, varies strongly between closely related species and is determined by genetic changes in regulatory genes that globally reprogram gene expression profiles of metabolic pathways.
    1. Biochemistry and Chemical Biology
    2. Cell Biology

    A RanGTP-independent mechanism allows ribosomal protein nuclear import for ribosome assembly

    Sabina Schütz et al.
    The Tsr2 carrier protein connects the nuclear import machinery with the ribosome assembly pathway.
    1. Cell Biology
    2. Chromosomes and Gene Expression

    A ribosome assembly stress response regulates transcription to maintain proteome homeostasis

    Benjamin Albert et al.
    Ribosome assembly is monitored to promote proteostatis through a system whereby unassembled ribosomal proteins lead to activation of heat shock factor 1 and inactivation of the RP gene activator Ifh1.
    1. Developmental Biology
    2. Chromosomes and Gene Expression

    mRNA poly(A)-tail changes specified by deadenylation broadly reshape translation in Drosophila oocytes and early embryos

    Stephen W Eichhorn et al.
    Profiling of mRNA poly(A)-tail lengths and translational efficiencies provides new insights into posttranscriptional gene regulation in early Drosophila 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. Structural Biology and Molecular Biophysics
    2. Chromosomes and Gene Expression

    The molecular basis for ANE syndrome revealed by the large ribosomal subunit processome interactome

    Kathleen L McCann et al.
    A single missense mutation in an RNA recognition motif within a nucleolar protein disrupts ribosome assembly and contributes to human pathology.

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