2,291 results found
    1. Chromosomes and Gene Expression

    Condensin controls recruitment of RNA polymerase II to achieve nematode X-chromosome dosage compensation

    William S Kruesi, Leighton J Core ... Barbara J Meyer
    C. elegans equalizes the expression of X-chromosome genes between the sexes by reducing the recruitment of RNA polymerase II to promoters of X-linked genes in hermaphrodites, using a chromosome-restructuring complex called condensin.
    1. Chromosomes and Gene Expression

    Cooperation between a hierarchical set of recruitment sites targets the X chromosome for dosage compensation

    Sarah Elizabeth Albritton, Anna-Lena Kranz ... Sevinc Ercan
    Gene regulatory elements can target a chromatin regulatory complex to a single chromosome in the genome through hierarchical specification and long distance cooperation.
    1. Chromosomes and Gene Expression
    2. Plant Biology

    Natural depletion of histone H1 in sex cells causes DNA demethylation, heterochromatin decondensation and transposon activation

    Shengbo He, Martin Vickers ... Xiaoqi Feng
    Transposon activation during male gametogenesis is caused by interactions between DNA demethylation and linker histone H1, developmental depletion of which promotes pollen fertility.
    1. Chromosomes and Gene Expression
    2. Genetics and Genomics

    Dosage compensation can buffer copy-number variation in wild yeast

    James Hose, Chris Mun Yong ... Audrey P Gasch
    Dosage-compensated gene expression facilitates chromosomal aneuploidy, which presents a rapid route to phenotypic evolution in natural yeast isolates.
    1. Cell Biology

    Axial contraction and short-range compaction of chromatin synergistically promote mitotic chromosome condensation

    Tom Kruitwagen, Annina Denoth-Lippuner ... Yves Barral
    Condensation and segregation of chromosomes during mitosis is caused by a combination of short-range interactions between nucleosomes and the long-range contraction of chromosome arms mediated by condensin.
    1. Neuroscience

    Neural evidence of functional compensation for fluid intelligence in healthy ageing

    Ethan Knights, Richard N Henson ... Kamen A Tsvetanov
    Older people can recruit additional brain regions to help perform complex tasks, possibly compensating for age-related changes in other parts of the brain.
    1. Cell Biology
    2. Chromosomes and Gene Expression

    No current evidence for widespread dosage compensation in S. cerevisiae

    Eduardo M Torres, Michael Springer, Angelika Amon
    Dosage compensation does not take place in wild yeast strains.
    1. Biochemistry and Chemical Biology

    Imaging and energetics of single SSB-ssDNA molecules reveal intramolecular condensation and insight into RecOR function

    Jason C Bell, Bian Liu, Stephen C Kowalczykowski
    Individual SSB-ssDNA complexes undergo reversible condensation and de-condensation that is modulated by RecOR during recombination.
    1. Computational and Systems Biology
    2. Evolutionary Biology

    Further support for aneuploidy tolerance in wild yeast and effects of dosage compensation on gene copy-number evolution

    Audrey P Gasch, James Hose ... Zhishi Wang
    Many natural isolates of budding yeast carry extra chromosome copies and show lower-than-expected expression at a subset of amplified genes, which show unique evolutionary signatures.
    1. Chromosomes and Gene Expression
    2. Structural Biology and Molecular Biophysics

    ParB dynamics and the critical role of the CTD in DNA condensation unveiled by combined force-fluorescence measurements

    Julene Madariaga-Marcos, Cesar L Pastrana ... Fernando Moreno-Herrero
    A single-molecule biophysical approach reveals that the C-terminal domain of ParB blocks ParB network formation by heterodimerization with the full-length protein, which remains bound to the DNA.

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