602 results found
    1. Chromosomes and Gene Expression

    Exploration of CTCF post-translation modifications uncovers Serine-224 phosphorylation by PLK1 at pericentric regions during the G2/M transition

    Brian C Del Rosario et al.
    The chromosome architectural protein, CTCF, is phosphorylated at Ser224 in a cell-cycle-dependent manner and abrogation of phosphorylation leads to a cell growth defect.
    1. Computational and Systems Biology
    2. Chromosomes and Gene Expression

    A simple biophysical model emulates budding yeast chromosome condensation

    Tammy MK Cheng et al.
    A computational model of a yeast chromosome, based on first principles, recapitulates in vivo chromosome behavior, and thus provides unprecedented insight into what the inside of a chromosome is likely to look like.
    1. Physics of Living Systems
    2. Cell Biology

    Mechanical design principles of a mitotic spindle

    Jonathan J Ward et al.
    Precise control of microtubule architecture greatly increases the force that the spindle can exert on chromosomes.
    1. Structural Biology and Molecular Biophysics
    2. Chromosomes and Gene Expression

    Single-molecule observation of DNA compaction by meiotic protein SYCP3

    Johanna L Syrjänen et al.
    Building on previous work (Syrjänen, Pellegrini, & Davies, 2014), it is shown that SYCP3 contributes to the architecture of meiotic chromosomes through local bridging interactions that result in large-scale compaction of the chromosome axis.
    1. Chromosomes and Gene Expression
    2. Structural Biology and Molecular Biophysics

    A conserved filamentous assembly underlies the structure of the meiotic chromosome axis

    Alan MV West et al.
    Meiotic chromosome axis 'core' proteins from fungi, plants, and mammals form a conserved filament architecture, and use a common mechanism to recruit HORMAD proteins for meiotic recombination control.
    1. Cell Biology
    2. Chromosomes and Gene Expression

    Sister kinetochore splitting and precocious disintegration of bivalents could explain the maternal age effect

    Agata P Zielinska et al.
    Multiple age-related changes in chromosome architecture could explain why human oocyte aneuploidy increases with advanced maternal age.
    1. Computational and Systems Biology
    2. Chromosomes and Gene Expression

    Complex chromosomal neighborhood effects determine the adaptive potential of a gene under selection

    Magdalena Steinrueck, Călin C Guet
    Experimental evolution reveals how adaptation by increased expression of a gene depends on a combination of simple genetic properties of the gene's neighbors on the DNA.
    1. Cell Biology
    2. Chromosomes and Gene Expression

    Meiosis: Stopping chromosomes from breaking bad

    Rima Sandhu, G Valentin Börner
    The scaffolding that holds chromosome pairs together plays a key role in limiting the levels of double-strand breaks.
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    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. Ecology
    2. Plant Biology
    Arabidopsis illustration

    The Natural History of Model Organisms: Planting molecular functions in an ecological context with Arabidopsis thaliana

    Ute Krämer
    Research in molecular ecology and evolution is increasingly utilizing the model plant Arabidopsis thaliana, placing a spotlight on its natural history.

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