7,308 results found
    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

    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. 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. Chromosomes and Gene Expression

    GAF is essential for zygotic genome activation and chromatin accessibility in the early Drosophila embryo

    Marissa M Gaskill et al.
    Following fertilization, the pioneering transcription factors GAGA factor (GAF) and Zelda are independently required to reprogram the zygotic genome of Drosophila and activate the first wave of gene expression.
    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
    2. Chromosomes and Gene Expression

    The splicing regulators Esrp1 and Esrp2 direct an epithelial splicing program essential for mammalian development

    Thomas W Bebee et al.
    Large-scale developmental defects in mice occur with the ablation of the epithelial-specific splicing factors Esrp1 and Esrp2.
    1. Computational and Systems Biology
    2. Evolutionary Biology

    Systematic bacterialization of yeast genes identifies a near-universally swappable pathway

    Aashiq H Kachroo et al.
    Despite billions of years of divergence, a majority of prokaryotic genes can functionally replace their essential eukaryotic counterparts, revealing broad preservation of ancestral functions and identifying heme biosynthesis as a near-universally swappable pathway.
    1. Neuroscience

    An essential role for MEF2C in the cortical response to loss of sleep in mice

    Theresa E Bjorness et al.
    The transcription factor, MEF2C, mediates a change in approximately one half of the expressed frontal cortical transcriptome controlling cellular metabolism and synaptic strength in response to acute loss of sleep.
    1. Cancer Biology

    Use of signals of positive and negative selection to distinguish cancer genes and passenger genes

    László Bányai et al.
    In contrast with earlier conclusions, negative selection has a major role in cancer evolution.

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