5,419 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, Catarina A Marques ... Richard McCulloch
    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. Evolutionary Biology
    2. Genetics and Genomics

    The evolutionary plasticity of chromosome metabolism allows adaptation to constitutive DNA replication stress

    Marco Fumasoni, Andrew W Murray
    Evolutionary adaptation to a constitutive perturbation of DNA replication reveals that adaptive mutations in three conserved pathways interact to restore faithful chromosome replication and segregation.
    1. Chromosomes and Gene Expression
    2. Genetics and Genomics

    Drosophila SUMM4 complex couples insulator function and DNA replication control

    Evgeniya N Andreyeva, Alexander V Emelyanov ... Dmitry V Fyodorov
    Biochemical and biological characterization of insulator complex SUMM4 reveals that, in addition to disrupting enhancer–promoter interactions and establishing chromatin barriers, it functions to delay DNA replication, thus implicating architectural proteins in shaping spatiotemporal patterns of replication.
    1. Cell Biology

    Two subunits of human ORC are dispensable for DNA replication and proliferation

    Etsuko Shibata, Manjari Kiran ... Anindya Dutta
    Human cell lines replicate and proliferate without ORC1 or ORC2, two subunits of the replication initiator protein complex ORC, which has till now been considered essential for DNA replication.
    1. Biochemistry and Chemical Biology

    Molecular determinants of phase separation for Drosophila DNA replication licensing factors

    Matthew W Parker, Jonchee A Kao ... Michael R Botchan
    The intrinsically disordered regions (IDRs) of metazoan DNA replication licensing factors phase separate through synergistic electrostatic DNA-IDR and hydrophobic inter-IDR interactions.
    1. Structural Biology and Molecular Biophysics

    Multistep loading of a DNA sliding clamp onto DNA by replication factor C

    Marina Schrecker, Juan C Castaneda ... Richard K Hite
    Single-particle cryo-EM structures reveal a multistep process of how DNA is loaded into the DNA sliding clamp proliferating cell nuclear antigen by the canonical clamp loader replication factor C.
    1. Cancer Biology

    Loss of p53 suppresses replication-stress-induced DNA breakage in G1/S checkpoint deficient cells

    Bente Benedict, Tanja van Harn ... Hein te Riele
    During tumorigenesis loss of p53 not only abrogates cell cycle arrest and apoptosis, but also suppresses the induction of replication-stress-induced DNA double-stranded breaks.
    1. Biochemistry and Chemical Biology
    2. Chromosomes and Gene Expression

    Opposing roles for DNA replication initiator proteins ORC1 and CDC6 in control of Cyclin E gene transcription

    Manzar Hossain, Bruce Stillman
    Two related DNA replication initiation proteins contribute to the decision of whether to enter a new round of the cell division cycle or enter into a period of proliferative quiescence.
    1. Chromosomes and Gene Expression

    Integrative analysis of DNA replication origins and ORC-/MCM-binding sites in human cells reveals a lack of overlap

    Mengxue Tian, Zhenjia Wang ... Chongzhi Zang
    The ~20,000 origins of replication in human cell lines that are reproducibly identified by multiple techniques in multiple cell lines are distant from known origin recognition complex and MCM2-7-binding sites.
    1. Chromosomes and Gene Expression

    CTCF confers local nucleosome resiliency after DNA replication and during mitosis

    Nick Owens, Thaleia Papadopoulou ... Pablo Navarro
    In contrast to other transcription factors, CTCF and Esrrb rapidly regain binding after replication and remain bound to their targets during mitosis, preserving local nucleosome organization throughout the cell cycle.

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