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    1. Cell Biology

    The unfolded protein response in fission yeast modulates stability of select mRNAs to maintain protein homeostasis

    Philipp Kimmig et al.
    A unique form of regulation has been observed in the unfolded protein response of S. pombe, along with a novel mechanism of post-transcriptional mRNA processing.
    1. Chromosomes and Gene Expression

    Major satellite repeat RNA stabilize heterochromatin retention of Suv39h enzymes by RNA-nucleosome association and RNA:DNA hybrid formation

    Oscar Velazquez Camacho et al.
    An RNA-mediated mechanism that stabilizes association of the Suv39h enzymes at mouse heterochromatin is defined.
    1. Cell Biology

    Degradation of Gadd45 mRNA by nonsense-mediated decay is essential for viability

    Jonathan O Nelson et al.
    Excess expression of the Gadd45 mRNA accounts for lethality when nonsense-mediated decay is lost in Drosophila and mammalian cells, revealing that this pathway is a critical gene regulatory mechanism.
    1. Genetics and Genomics

    Enhanced stability and polyadenylation of select mRNAs support rapid thermogenesis in the brown fat of a hibernator

    Katharine R Grabek et al.
    In the torpid hibernator, when transcription is inhibited, enhanced stability and polyadenylation explain increased abundance of crucial transcripts required for intense non-shivering thermogenesis during arousal.
    1. Chromosomes and Gene Expression

    Noncoding RNA-nucleated heterochromatin spreading is intrinsically labile and requires accessory elements for epigenetic stability

    R A Greenstein et al.
    Heterochromatin spreading in fission yeast predominantly produces intergenerationally unstable outcomes, requiring an accessory element that represses histone turnover.
    1. Chromosomes and Gene Expression

    DNA Repair: Rad51, friend or foe?

    Sue Mei Tan-Wong, Nick J Proudfoot
    Insight
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    1. Biochemistry and Chemical Biology
    2. Cell Biology

    The translation elongation factor eEF1A1 couples transcription to translation during heat shock response

    Maria Vera et al.
    Eukaryotic translation elongation factor 1A1 controls the process of heat shock response, from transcriptional activation of the HSP70 gene, to HSP70 mRNA stabilization, nuclear export, and translation.
    1. Chromosomes and Gene Expression
    2. Genetics and Genomics

    Efficient termination of nuclear lncRNA transcription promotes mitochondrial genome maintenance

    Dorine Jeanne Mari√ętte du Mee et al.
    RNA Polymerase II transcriptional termination of a nuclear long non-coding RNA is required to maintain the mitochondrial genome and hence promotes budding yeast growth.
    1. Biochemistry and Chemical Biology

    Origin of life: Transitioning to DNA genomes in an RNA world

    Razvan Cojocaru, Peter J Unrau
    The unexpected ability of an RNA polymerase ribozyme to copy RNA into DNA has ramifications for understanding how DNA genomes evolved.
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    1. Chromosomes and Gene Expression
    2. Stem Cells and Regenerative Medicine

    Decoupling the impact of microRNAs on translational repression versus RNA degradation in embryonic stem cells

    Jacob W Freimer et al.
    The deletion of Ddx6 results in the translational upregulation, but not transcript stabilization, of microRNA targets in embryonic stem cells while largely phenocopying the overall impact of global microRNA loss.