17 results found
    1. Cell Biology
    2. Genomics and Evolutionary Biology

    Retrotransposons: On the move

    Sandra L Martin
    The mechanisms by which a retrotransposon called LINE-1 duplicates itself and spreads through the human genome are becoming clearer.
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    1. Microbiology and Infectious Disease

    Pirating conserved phage mechanisms promotes promiscuous staphylococcal pathogenicity island transfer

    Janine Bowring et al.
    Structural and genetic analyses reveal the highly evolved and unprecedented biological strategy used by SaPIs to spread in nature.
    1. Genomics and Evolutionary Biology
    2. Human Biology and Medicine

    APOBEC3A deaminates transiently exposed single-strand DNA during LINE-1 retrotransposition

    Sandra R Richardson et al.
    Combining in vitro and in vivo assays demonstrates that the cytidine deaminase APOBEC3A can inhibit LINE-1 retrotransposition by deaminating transiently exposed single-strand DNA that arises during the process of LINE-1 integration.
    1. Developmental Biology and Stem Cells
    2. Genomics and Evolutionary Biology

    Mobilization of LINE-1 retrotransposons is restricted by Tex19.1 in mouse embryonic stem cells

    Marie MacLennan et al.
    Post-translational regulation of retrotransposons plays a key role in preventing retrotransposon mobilization in the epigenetically dynamic mouse germline.
    1. Biochemistry and Chemical Biology

    eIF1A residues implicated in cancer stabilize translation preinitiation complexes and favor suboptimal initiation sites in yeast

    Pilar Martin-Marcos et al.
    Substitutions in general translation initiation factor eIF1A found as recurring somatic mutations in uveal melanoma destabilize the closed conformation of the preinitiation complex at the start codon and increase discrimination against suboptimal initiation codons genome-wide.
    1. Genes and Chromosomes
    2. Genomics and Evolutionary Biology

    Genome-wide DNA hypomethylation and RNA:DNA hybrid accumulation in Aicardi–Goutières syndrome

    Yoong Wearn Lim et al.
    Global epigenetic perturbations and accumulation of RNA:DNA hybrids are two novel hallmarks of the lupus-like inflammatory disorder Aicardi-Goutières syndrome.
    1. Genes and Chromosomes

    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
    2. Genomics and Evolutionary Biology

    LINE-1 protein localization and functional dynamics during the cell cycle

    Paolo Mita et al.
    A combination of functional, biochemical and imaging studies show that LINE-1/L1 proteins and mRNA enter the nucleus through mitotic nuclear membrane breakdown, interact with components of the DNA replication fork and mediate retrotransposition during S phase.
    1. Developmental Biology and Stem Cells
    2. Genes and Chromosomes

    Maternal LSD1/KDM1A is an essential regulator of chromatin and transcription landscapes during zygotic genome activation

    Katia Ancelin et al.
    The maternally provided histone demethylase LSD1/KDM1A has an instrumental role at the beginning of life, shaping the histone methylation landscape and the transcriptional repertoire of the early mouse embryo.
    1. Genes and Chromosomes

    The β-hairpin of 40S exit channel protein Rps5/uS7 promotes efficient and accurate translation initiation in vivo

    Jyothsna Visweswaraiah et al.
    A structural element of mRNA exit channel protein Rps5 performs a critical role in start codon recognition during translation initiation by stabilizing initiator tRNA binding to the pre-initiation complex.

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