203 results found
    1. Chromosomes and Gene Expression

    Telomere repeats induce domains of H3K27 methylation in Neurospora

    Kirsty Jamieson et al.
    Vast regions of facultative heterochromatin marked by methylation of lysine 27 on histone H3 depend on their proximity to chromosome ends and can be induced ectopically by insertion of telomere repeats.
    1. Chromosomes and Gene Expression

    The RNA interactome of human telomerase RNA reveals a coding-independent role for a histone mRNA in telomere homeostasis

    Roland Ivanyi-Nagy et al.
    A messenger RNA coding for the histone 1.2 protein negatively regulates telomere elongation by interacting with human telomerase RNA.
    1. Chromosomes and Gene Expression
    2. Microbiology and Infectious Disease

    Mapping replication dynamics in Trypanosoma brucei reveals a link with telomere transcription and antigenic variation

    Rebecca Devlin et al.
    Mapping DNA replication timing, allied to genetic analysis of a RecQ repair helicase, reveals that antigenic variation in the African trypanosome may be initiated by locus-specific, replication-derived sequence instability.
    1. Structural Biology and Molecular Biophysics
    2. Chromosomes and Gene Expression

    Single-molecule imaging of telomerase reverse transcriptase in human telomerase holoenzyme and minimal RNP complexes

    Robert Alexander Wu et al.
    New labeling approaches for single-molecule fluorescence microscopy detect the monomeric catalytic subunit of human telomerase within cellular holoenzyme and minimal active recombinant enzyme.
    1. Developmental Biology
    2. Evolutionary Biology

    Research: Titles and abstracts of scientific reports ignore variation among species

    Barbara R Migeon
    Ignoring the probability of species variation when reporting observations about biological processes leads to misinterpretation of the experimental data.
    1. Developmental Biology
    2. Chromosomes and Gene Expression

    Oncogenesis: Taking the brakes off telomerase

    Kamila Naxerova, Stephen J Elledge
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    1. Cell Biology
    2. Chromosomes and Gene Expression

    Heterochromatin: Silencing repetitive DNA

    Nahid Iglesias, Danesh Moazed
    Some RNAs in mammalian cells can help to silence the DNA they are transcribed from.
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    1. Cell Biology
    2. Chromosomes and Gene Expression

    E3 ubiquitin ligase Bre1 couples sister chromatid cohesion establishment to DNA replication in Saccharomyces cerevisiae

    Wei Zhang et al.
    E3 ubiquitin ligase Bre1-induced H2B monoubiquitination is epigenetically important for recruiting replication factor Mcm10 and cohesion establishment factors Ctf4, Ctf18 and Eco1 to early replication origins to establish sister chromatid cohesion.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Tandem hnRNP A1 RNA recognition motifs act in concert to repress the splicing of survival motor neuron exon 7

    Irene Beusch et al.
    The structural model of hnRNP A1 shows that it can bind with both RRMs to RNA, which is shown to be relevant for the SMN2 exon 7 splicing mechanism in vivo.
    1. Chromosomes and Gene Expression

    Inter-Fork Strand Annealing causes genomic deletions during the termination of DNA replication

    Carl A Morrow et al.
    The discovery of a mechanism that causes DNA deletions during non-canonical DNA replication termination is described.

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