63 results found
    1. Genetics and Genomics
    2. Microbiology and Infectious Disease

    Genome duplication in Leishmania major relies on persistent subtelomeric DNA replication

    Jeziel Dener Damasceno et al.
    Duplication of Leishmania chromosomes combines S-phase DNA replication initiated at a single internal region with subtelomeric DNA replication detectable outside S-phase, potentially explaining genome plasticity in this important parasite.
    1. Stem Cells and Regenerative Medicine

    Persistent epigenetic memory impedes rescue of the telomeric phenotype in human ICF iPSCs following DNMT3B correction

    Shir Toubiana et al.
    Correction of the DNA methyltransferase 3B gene in ICF1 syndrome fails to rescue the abnormal DNA hypomethylation at subtelomeric regions due to accompanied epigenetic abnormalities in these regions.
    1. Biochemistry and Chemical Biology
    2. Chromosomes and Gene Expression

    FACT and Ubp10 collaborate to modulate H2B deubiquitination and nucleosome dynamics

    Melesse Nune et al.
    The histone chaperone FACT and the deubiquitinating enzyme Ubp10 act in concert to remove ubiquitin from histone H2B in nucleosomes, and likely coordinate nucleosome assembly during DNA replication and transcription.
    1. Cell Biology
    2. Chromosomes and Gene Expression

    Aneuploidy as a cause of impaired chromatin silencing and mating-type specification in budding yeast

    Wahid A Mulla et al.
    Genetic analyses reveal that purely quantitative changes in the relative copy number of chromosomes can be sufficient to disrupt the epigenetic mechanisms that define the cells' differentiated state.
    1. Chromosomes and Gene Expression

    Histone H3G34R mutation causes replication stress, homologous recombination defects and genomic instability in S. pombe

    Rajesh K Yadav et al.
    Mutation of Glycine 34 to Arginine within the N-terminal tail of histone H3 alters post-translational modifications on Lysine 36 and is associated with a delay in replication restart, defective homologous recombination and an increase in genomic instability.
    1. Evolutionary Biology

    Adaptive evolution of an essential telomere protein restricts telomeric retrotransposons

    Bastien Saint-Leandre et al.
    Evolution strictly preserves telomere stability but rapidly diversifies telomere length regulation in Drosophila.
    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.
    1. Genetics and Genomics

    Cdc13 is predominant over Stn1 and Ten1 in preventing chromosome end fusions

    Zhi-Jing Wu et al.
    Cdc13 prevents chromosomes from end-to-end fusion.
    1. Chromosomes and Gene Expression
    2. Stem Cells and Regenerative Medicine

    TERRA regulate the transcriptional landscape of pluripotent cells through TRF1-dependent recruitment of PRC2

    Rosa María Marión et al.
    Telomeric TRF1 controls the transcriptional programmes of pluripotent stem cells by recruiting PRC2 to pluripotency and differentiation genes by controlling the expression of those gene sites and the binding of TERRA RNAs to them.
    1. Chromosomes and Gene Expression

    Progerin reduces LAP2α-telomere association in Hutchinson-Gilford progeria

    Alexandre Chojnowski et al.
    Expression of the lamina-associated polypeptide α (LAP2α) prevents premature cellular ageing caused by expression of progerin in Hutchinson-Gilford progeria syndrome.

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