4,108 results found
    1. Chromosomes and Gene Expression

    The molecular basis of coupling between poly(A)-tail length and translational efficiency

    Kehui Xiang, David P Bartel
    For poly(A)-tail length to influence mRNA translational efficiency, poly(A)-binding protein (PABPC) must be limiting, mRNAs lacking PABPC must be stable, and translation initiation must be sensitive to PABPC levels.
    1. Biochemistry and Chemical Biology

    Translation repression via modulation of the cytoplasmic poly(A)-binding protein in the inflammatory response

    Xu Zhang et al.
    The RNA-binding protein, Zfp36, which is critical for resolving inflammation, inhibits the production of proinflammatory cytokines via modulation of the cytoplasmic poly(A)-binding protein.
    1. Neuroscience

    Inhibiting poly(ADP-ribosylation) improves axon regeneration

    Alexandra B Byrne et al.
    In C. elegans and mouse neurons, the balance between poly(ADP-ribose) glycohydrolases and poly(ADP-ribose) polymerases regulates axon regeneration downstream of DLK-1/MAPKKK signaling.
    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. Cell Biology

    Robust cullin-RING ligase function is established by a multiplicity of poly-ubiquitylation pathways

    Spencer Hill et al.
    Human cullin-RING ligases are buffered to a much greater extent than had been previously appreciated, and the roles of ubiquitin chain extension enzymes are far more nuanced at physiological concentrations.
    1. Plant Biology

    Accurate timekeeping is controlled by a cycling activator in Arabidopsis

    Polly Yingshan Hsu et al.
    The circadian clock in the model plant organism Arabidopsis thaliana is best described as a highly connected network made up of clock-regulated activators and repressors of transcription, rather than two coupled, repressor-based feedback loops.
  1. Point of view: Motivating participation in open science by examining researcher incentives

    Sarah E Ali-Khan et al.
    A survey of researchers at the Montreal Neurological Institute and Hospital provides insights into the challenges and opportunities involved in adopting an open science policy across an entire patient-oriented academic institution.
    1. Biochemistry and Chemical Biology

    Single molecule poly(A) tail-seq shows LARP4 opposes deadenylation throughout mRNA lifespan with most impact on short tails

    Sandy Mattijssen et al.
    LARP4 protects mRNAs against deadenylation over a wide range of poly(A) lengths but with most apparent functional impact on short lengths known to sensitize PABP binding and mRNA stability.
    1. Biochemistry and Chemical Biology

    LARP4 mRNA codon-tRNA match contributes to LARP4 activity for ribosomal protein mRNA poly(A) tail length protection

    Sandy Mattijssen et al.
    The messenger RNA encoding La-related protein-4 (LARP4) contains a short region of instability whose codon clusters are sensitive to low abundance tRNAs that when elevated increase LARP4 activity for poly(A) lengthening of ribosomal protein mRNAs and other mRNAs.
    1. Biochemistry and Chemical Biology
    2. Developmental Biology

    Poly(A) tail length regulates PABPC1 expression to tune translation in the heart

    Sandip Chorghade et al.
    A poly(A) tail-based regulatory mechanism dynamically controls PABPC1 protein synthesis in cardiomyocytes and thereby titrates cellular translation in response to developmental and hypertrophic cues.

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