285 results found
    1. Biochemistry and Chemical Biology
    2. Chromosomes and Gene Expression

    A mechanism for the extension and unfolding of parallel telomeric G-quadruplexes by human telomerase at single-molecule resolution

    Bishnu P Paudel et al.
    Human telomerase unfolds and extends parallel G-quadruplexes using a unique mechanism involving its RNA template.
    1. Computational and Systems Biology
    2. Stem Cells and Regenerative Medicine

    Reconstructing the in vivo dynamics of hematopoietic stem cells from telomere length distributions

    Benjamin Werner et al.
    Telomere length distributions can be used to infer important properties of stem cell proliferation.
    1. Chromosomes and Gene Expression

    The Ku subunit of telomerase binds Sir4 to recruit telomerase to lengthen telomeres in S. cerevisiae

    Evan P Hass, David C Zappulla
    In yeast, the secondary pathway for recruiting telomerase to chromosome ends requires a component of telomeric transcriptionally silent chromatin.
    1. Epidemiology and Global Health
    2. Medicine

    Effects of water, sanitation, handwashing, and nutritional interventions on telomere length among children in a cluster-randomized controlled trial in rural Bangladesh

    Audrie Lin et al.
    In a randomized controlled trial in rural Bangladesh, an intensive, combined water, sanitation, handwashing, and nutrition intervention delivered to compounds of newborn children increased telomere length attrition during their first year of life.
    1. Cell Biology
    2. Chromosomes and Gene Expression

    TRF1 averts chromatin remodelling, recombination and replication dependent-break induced replication at mouse telomeres

    Rosa Maria Porreca et al.
    TRF1 suppresses replication fork stalling, which triggers break induced replication at telomeres associated with DNA damage response, alteration in the telomere chromatin environment, and re-localisation of telomeres to PML bodies.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Mechanisms of nucleotide selection by telomerase

    Matthew A Schaich et al.
    The roles of key telomerase active site residues were elucidated to determine how telomerase selects the correct from the incorrect nucleotide to maintain telomere integrity.
    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

    A sharp Pif1-dependent threshold separates DNA double-strand breaks from critically short telomeres

    Jonathan Strecker et al.
    A sharp transition in the fate of DNA ends with telomere sequences is identified, which suggests a boundary between DNA double-strand breaks and telomeres.
    1. Chromosomes and Gene Expression

    Multi-step coordination of telomerase recruitment in fission yeast through two coupled telomere-telomerase interfaces

    Xichan Hu et al.
    A telomerase recruitment mechanism delivers cell cycle information to the telomere-telomerase interface to ensure timely telomerase engagement at the telomere.
    1. Chromosomes and Gene Expression
    2. Genetics and Genomics

    The role of Rif1 in telomere length regulation is separable from its role in origin firing

    Calla B Shubin, Carol W Greider
    Telomere length is linked to DNA replication, and we found excessive telomeric origin firing caused by several distinct mutants did not lengthen telomeres, narrowing possible mechanisms.

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