6,361 results found
    1. Evolutionary Biology
    2. Genetics and Genomics

    Innovation of heterochromatin functions drives rapid evolution of essential ZAD-ZNF genes in Drosophila

    Bhavatharini Kasinathan et al.
    Heterochromatic sequences evolve rapidly, as do ZAD-ZNF genes-encoding proteins involved in heterochromatin functions, explaining why evolutionarily dynamic ZAD-ZNF genes are more likely to be essential in Drosophila.
    1. Computational and Systems Biology
    2. Evolutionary Biology

    Adaptation to mutational inactivation of an essential gene converges to an accessible suboptimal fitness peak

    João V Rodrigues, Eugene I Shakhnovich
    When an essential metabolic gene in E. coli is mutationally inactivated, subsequent evolution rarely reverts the mutation to wild type but rather follows unexpected paths that rewire metabolic fluxes.
    1. Genetics and Genomics
    2. Microbiology and Infectious Disease

    Arrayed CRISPRi and quantitative imaging describe the morphotypic landscape of essential mycobacterial genes

    Timothy J de Wet et al.
    A high-throughput functional genomics approach combining inducible CRISPR-interference and quantitative imaging yields an atlas of 'phenoprints' to guide gene function assignments, identify metabolic pathway-specific morphotypes, and inform antibiotic mechanism-of-action studies.
    1. Evolutionary Biology
    2. Genetics and Genomics

    A natural variant of the essential host gene MMS21 restricts the parasitic 2-micron plasmid in Saccharomyces cerevisiae

    Michelle Hays et al.
    A novel assay to measure 2-micron stability together with a survey of natural variation among Saccharomyces cerevisiae strains reveals novel means by which yeasts can combat the parasitic 2-micron plasmids.
    1. Developmental Biology

    Condensin I subunit Cap-G is essential for proper gene expression during the maturation of post-mitotic neurons

    Amira Hassan et al.
    The condensin I subunit Cap-G is expressed in post-mitotic neurons and its removal, especially from less mature neurons, results in gene expression changes, reduced survival and behavioural defects in Drosophila.
    1. Developmental Biology

    TALE factors use two distinct functional modes to control an essential zebrafish gene expression program

    Franck Ladam et al.
    TALE transcription factors bind different genomic motifs and function together with different protein partners at different stages of zebrafish embryogenesis.
    1. Evolutionary Biology

    Telomeres: Change and HOAP for the best

    Claudia Castillo-González, Dorothy E Shippen
    HOAP is a telomere-binding protein that has a conserved role in Drosophila, but it also needs to evolve quickly to restrict telomeric retrotransposons.
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    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. Biochemistry and Chemical Biology
    2. Cancer Biology

    The DREAM complex through its subunit Lin37 cooperates with Rb to initiate quiescence

    Christina FS Mages et al.
    Lin37 is essential for cell-cycle gene repression by the DREAM complex in cellular quiescence and a combined loss of Lin37 and Rb prevents cell-cycle exit in response to growth-limiting signals.
    1. Cell Biology
    2. Developmental Biology

    Optogenetic dissection of mitotic spindle positioning in vivo

    Lars-Eric Fielmich et al.
    New germline gene expression, knockout, and optogenetic tools reveal essential roles for Gα-GPR-1,2/Pins as a regulatable membrane anchor and LIN-5/NuMA as an activator of cortical dynein in mitotic spindle positioning.

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