2,551 results found
    1. Chromosomes and Gene Expression
    2. Computational and Systems Biology

    The eukaryotic bell-shaped temporal rate of DNA replication origin firing emanates from a balance between origin activation and passivation

    Jean-Michel Arbona, Arach Goldar ... Benjamin Audit
    The universal eukaryotic DNA replication kinetics is the consequence of simple physicochemical rules resulting from the localisation of potential replication origins at discrete sites and the diffusion of limiting origin firing factors in the nuclear space.
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    1. Chromosomes and Gene Expression

    Rad53 checkpoint kinase regulation of DNA replication fork rate via Mrc1 phosphorylation

    Allison W McClure, John FX Diffley
    DNA replication fork rate in budding yeast is regulated in response to DNA damage by phosphorylation of two proteins, Mrc1 and Mcm10, by the Rad53 protein kinase.
  1. Meta-Research: Questionable research practices may have little effect on replicability

    Rolf Ulrich, Jeff Miller
    Although questionable research practices inflate false positive rates, they have little effect on replicability because they also increase power.
    1. Medicine

    Epidemiological characteristics and prevalence rates of research reproducibility across disciplines: A scoping review of articles published in 2018-2019

    Kelly D Cobey, Christophe A Fehlmann ... David Moher
    Definitions of reproducibility vary considerably across disciplines and overall rates of reproducibility are low irrespective of the definition used.
    1. Evolutionary Biology

    Rapid evolution of the human mutation spectrum

    Kelley Harris, Jonathan K Pritchard
    Heritable mutations tend to occur within different DNA sequence contexts in different human populations, suggesting that DNA replication and repair often change in efficacy over only a few hundred generations of evolution.
    1. Physics of Living Systems

    Speed variations of bacterial replisomes

    Deepak Bhat, Samuel Hauf ... Simone Pigolotti
    The speed of replisomes in Escherichia coli depends on temperature and varies along the genome in a wave-like manner, with implications for bacterial physiology.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Cooperative base pair melting by helicase and polymerase positioned one nucleotide from each other

    Divya Nandakumar, Manjula Pandey, Smita S Patel
    A detailed model of the T7 replisome with the precise positions of the helicase and polymerase at the replication fork explains how catalysis by the two enzymes is coordinated.
    1. Cell Biology

    Transcription leads to pervasive replisome instability in bacteria

    Sarah M Mangiameli, Christopher N Merrikh ... Houra Merrikh
    Replication-transcription conflicts cause pervasive replisome instability.
    1. Cell Biology
    2. Microbiology and Infectious Disease

    Point of View: Is cell size a spandrel?

    Ariel Amir
    Analysis of experiments on bacteria suggests that the dependence of cell size on growth rate is not an adaptation but a causal consequence of a regulatory mechanism that controls DNA replication.
    1. Chromosomes and Gene Expression

    Rapid DNA replication origin licensing protects stem cell pluripotency

    Jacob Peter Matson, Raluca Dumitru ... Jeanette Gowen Cook
    The unique cell cycle variations of pluripotent stem cells ensures that the first step in DNA replication is particularly fast and this rapid rate, in turn, restrains early differentiation.

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