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    1. Cancer Biology

    Inhibiting IRE1α-endonuclease activity decreases tumor burden in a mouse model for hepatocellular carcinoma

    Nataša Pavlović et al.
    Inhibiting IRE1α decreases tumor cell proliferation and migration in hepatocellular carcinoma, therefore components of this ER-stress pathway may be therapeutically relevant for liver cancer.
    1. Cell Biology

    Regulated Ire1-dependent mRNA decay requires no-go mRNA degradation to maintain endoplasmic reticulum homeostasis in S. pombe

    Nicholas R Guydosh et al.
    A critical component of the cellular response to unfolded proteins is the widespread rescue of ribosomes that stall on endonucleolytically-cleaved mRNA transcripts.
    1. Biochemistry and Chemical Biology
    2. Chromosomes and Gene Expression

    Perturbation of base excision repair sensitizes breast cancer cells to APOBEC3 deaminase-mediated mutations

    Birong Shen et al.
    Accumulation of mutations in some cancers is correlated with an aberration of DNA repair and access of a DNA deaminase to normal genomic DNA.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    The Cas4-Cas1-Cas2 complex mediates precise prespacer processing during CRISPR adaptation

    Hayun Lee et al.
    During CRISPR adaptation, Cas4 forms a ternary complex with the Cas1-Cas2 spacer integration complex, an interaction that coordinates substrate hand-off following precise, PAM-dependent prespacer processing prior to integration.
    1. Biochemistry and Chemical Biology

    Circularization restores signal recognition particle RNA functionality in Thermoproteus

    André Plagens et al.
    Archaea can contain permuted versions of the universal signal recognition particle RNA, which require a moonlighting activity of the tRNA splicing machinery to generate functional circular RNAs.
    1. Structural Biology and Molecular Biophysics

    Structural basis for DNA 5´-end resection by RecJ

    Kaiying Cheng et al.
    A structural investigation reveals details of the mechanism by which the nuclease RecJ processes DNA ends to repair double strand breaks.
    1. Microbiology and Infectious Disease

    A chimeric nuclease substitutes a phage CRISPR-Cas system to provide sequence-specific immunity against subviral parasites

    Zachary K Barth et al.
    Horizontal transfer of a sequence-specific DNA-binding domain allows a virus to destroy its subviral parasite and overcome parasite-mediated restriction.
    1. Chromosomes and Gene Expression
    2. Genetics and Genomics

    Sae2/CtIP prevents R-loop accumulation in eukaryotic cells

    Nodar Makharashvili et al.
    The CtIP DNA repair enzyme is required for the removal of transcription-associated lesions in eukaryotic cells.
    1. Biochemistry and Chemical Biology
    2. Cancer Biology

    Explosive mutation accumulation triggered by heterozygous human Pol ε proofreading-deficiency is driven by suppression of mismatch repair

    Karl P Hodel et al.
    When mismatch repair is compromised heterozygous loss of Pol ε proofreading is sufficient to drive a subset of the observed clinical characteristics of Pol ε tumors.
    1. Biochemistry and Chemical Biology
    2. Plant Biology

    RISC-interacting clearing 3’- 5’ exoribonucleases (RICEs) degrade uridylated cleavage fragments to maintain functional RISC in Arabidopsis thaliana

    Zhonghui Zhang et al.
    AGO protein-interacting exoribonucleases clear RNA induced silencing complex (RISC)-resulting 5' cleavage products in time to recycle RISC and miRNAs.