187 results found
    1. Cell Biology

    Ribosome collisions trigger cis-acting feedback inhibition of translation initiation

    Szymon Juszkiewicz, Greg Slodkowicz ... Ramanujan S Hegde
    Ribosome collisions along an mRNA are shown to recruit factors that prevent additional ribosomes from initiating translation on that mRNA, thereby providing time to resolve the collision.
    1. Biochemistry and Chemical Biology
    2. Cell Biology

    EDF1 coordinates cellular responses to ribosome collisions

    Niladri K Sinha, Alban Ordureau ... Rachel Green
    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. 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.
    1. Chromosomes and Gene Expression
    2. Computational and Systems Biology

    TASEP modelling provides a parsimonious explanation for the ability of a single uORF to derepress translation during the integrated stress response

    Dmitry E Andreev, Maxim Arnold ... Pavel V Baranov
    A model reveals how translation of an mRNA leader could provide resistance to global downregulation of translation.
    1. Chromosomes and Gene Expression

    Ribosome recycling is not critical for translational coupling in Escherichia coli

    Kazuki Saito, Rachel Green, Allen R Buskirk
    Without ribosome recycling factor, ribosomes in Escherichia coli accumulate in 3'-UTRs and queue upstream of stop codons, but no effects were observed on the translational coupling of neighboring genes.
    1. Biochemistry and Chemical Biology
    2. Computational and Systems Biology

    Enrichment of rare codons at 5' ends of genes is a spandrel caused by evolutionary sequence turnover and does not improve translation

    Richard Sejour, Janet Leatherwood ... Bruce Futcher
    The 5' ends of genes are slightly enriched for rare codons largely because the ends turnover in evolution and gather rare codons, and these rare codons do not improve translation.
    1. Cell Biology
    2. Genetics and Genomics

    Distinct elongation stalls during translation are linked with distinct pathways for mRNA degradation

    Anthony J Veltri, Karole N D'Orazio ... Rachel Green
    Genetic screens and functional assays utilizing reporter mRNAs triggering NGD or COMD provide a basis for understanding the unique contributions of each pathway to translation-coupled mRNA decay and contextualizes their effects in the larger cellular process of translation surveillance.
    1. Genetics and Genomics

    The endonuclease Cue2 cleaves mRNAs at stalled ribosomes during No Go Decay

    Karole N D'Orazio, Colin Chih-Chien Wu ... Rachel Green
    Cue2 is an endonuclease that cleaves mRNA in the A site of the lagging ribosome upon ribosome collision events.
    1. Cell Biology

    Distinct regulatory ribosomal ubiquitylation events are reversible and hierarchically organized

    Danielle M Garshott, Elayanambi Sundaramoorthy ... Eric J Bennett
    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. Chromosomes and Gene Expression

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

    Jiyu Wang, Jie Zhou ... Elizabeth J Grayhack
    An eukaryotic specific system cooperates with the ribosome quality control pathway to maintain the reading frame during translation of slowly translated sequences.

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