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Page 2 of 542
    1. Chromosomes and Gene Expression
    2. Genetics and Genomics

    Universally high transcript error rates in bacteria

    Weiyi Li, Michael Lynch
    Fundamental details of the rate and molecular spectrum of transcript errors were revealed in four bacterial species, providing novel insights into transcriptional fidelity and RNA quality-control in prokaryotes.
    1. Biochemistry and Chemical Biology
    2. Cell Biology

    The Rqc2/Tae2 subunit of the ribosome-associated quality control (RQC) complex marks ribosome-stalled nascent polypeptide chains for aggregation

    Ryo Yonashiro et al.
    Rqc2-mediated modification of ribosome-stalled nascent chains with "CAT tails" promotes formation of insoluble aggregates suggesting that proteins can become specifically marked for aggregation.
    1. Cell Biology

    Quantitative glycoproteomics reveals cellular substrate selectivity of the ER protein quality control sensors UGGT1 and UGGT2

    Benjamin M Adams et al.
    Natural substrates of the central endoplasmic reticulum quality control glycoprotein sensors UDP-glucose:glycoproteinglucosyltransferase (UGGT)1 and UGGT2 were identified using a glycoproteomics approach and the role for their modification was explored.
    1. Cell Biology
    2. Plant Biology

    A cross-kingdom conserved ER-phagy receptor maintains endoplasmic reticulum homeostasis during stress

    Madlen Stephani et al.
    C53 bridges selective autophagy with ribosome-associated quality control at the endoplasmic reticulum.
    1. Cell Biology

    Distinct regulatory ribosomal ubiquitylation events are reversible and hierarchically organized

    Danielle M Garshott et al.
    A hierarchical relationship among highly conserved regulatory ribosomal ubiquitylation events and the presence of antagonistic deubiquitylating enzymes suggests a dynamic ubiquitin code impacts ribosome-associated activities.
    1. Biochemistry and Chemical Biology
    2. Cell Biology

    EDF1 coordinates cellular responses to ribosome collisions

    Niladri K Sinha et al.
    Endothelial Differentiation Factor 1 (EDF1) plays a critical role in driving mRNA-specific quality control and global transcriptional responses in response to ribosome collisions.
    1. Cell Biology

    Spatial quality control bypasses cell-based limitations on proteostasis to promote prion curing

    Courtney L Klaips et al.
    Cell division imposes a limit on proteostasis capacity by reducing chaperone accumulation, but chaperone-substrate interactions reverse these events to allow clearance of even chronically misfolded protein amyloids.
    1. Chromosomes and Gene Expression

    Multi-protein bridging factor 1(Mbf1), Rps3 and Asc1 prevent stalled ribosomes from frameshifting

    Jiyu Wang et al.
    An eukaryotic specific system cooperates with the ribosome quality control pathway to maintain the reading frame during translation of slowly translated sequences.
    1. Biochemistry and Chemical Biology
    2. Cell Biology

    The Lamin B receptor is essential for cholesterol synthesis and perturbed by disease-causing mutations

    Pei-Ling Tsai et al.
    Lamin B receptor may provide a long-sought model system enabling unprecedented studies of protein quality control in the nuclear envelope of mammalian cells.
    1. Computational and Systems Biology

    Kinetic modeling predicts a stimulatory role for ribosome collisions at elongation stall sites in bacteria

    Michael A Ferrin, Arvind R Subramaniam
    Collision between ribosomes can cause dissociation of stalled ribosomes from messenger RNAs during the process of mRNA translation.