926 results found
    1. Chromosomes and Gene Expression

    Transcription of a 5’ extended mRNA isoform directs dynamic chromatin changes and interference of a downstream promoter

    Minghao Chia, Amy Tresenrider ... Folkert Jacobus van Werven
    Expression of a 5' extended mRNA isoform represses transcription of a downstream promoter.
    1. Chromosomes and Gene Expression
    2. Genetics and Genomics

    Efficient termination of nuclear lncRNA transcription promotes mitochondrial genome maintenance

    Dorine Jeanne Mariëtte du Mee, Maxim Ivanov ... Sebastian Marquardt
    RNA Polymerase II transcriptional termination of a nuclear long non-coding RNA is required to maintain the mitochondrial genome and hence promotes budding yeast growth.
    1. Computational and Systems Biology
    2. Chromosomes and Gene Expression

    Transcription mediated insulation and interference direct gene cluster expression switches

    Tania Nguyen, Harry Fischl ... Jane Mellor
    The formation of mutually exclusive coding and non-coding transcription units contributes to transcriptional interference and insulation at gene clusters and manages state-switching in response to environmental change.
    1. Chromosomes and Gene Expression

    Dynamic spreading of chromatin-mediated gene silencing and reactivation between neighboring genes in single cells

    Sarah Lensch, Michael H Herschl ... Lacramioara Bintu
    In a synthetic system, spreading of chromatin-mediated silencing to nearby genes depends on distance and can bypass genetic insulators, while reactivation after release of gene targeting is coordinated by insulators and promoters.
    1. Cell Biology
    2. Chromosomes and Gene Expression

    The histone H3K9 demethylase KDM3A promotes anoikis by transcriptionally activating pro-apoptotic genes BNIP3 and BNIP3L

    Victoria E Pedanou, Stéphane Gobeil ... Michael R Green
    A large-scale RNA interference screen uncovers a new transcriptional regulatory program involving the histone H3 demethylase KDM3A, which mediates detachment-induced apoptosis (anoikis) in breast epithelial cells.
    1. Chromosomes and Gene Expression
    2. Genetics and Genomics

    Bidirectional promoter activity from expression cassettes can drive off-target repression of neighboring gene translation

    Emily Nicole Powers, Charlene Chan ... Gloria Ann Brar
    Bidirectional promoter activity, which is inherent to the promoters of selection cassettes used for genome editing, causes divergent transcription that can disrupt expression of genes neighboring cassette insertion sites, causing potent off-target effects.
    1. Stem Cells and Regenerative Medicine

    A mex3 homolog is required for differentiation during planarian stem cell lineage development

    Shu Jun Zhu, Stephanie E Hallows ... Bret J Pearson
    The planarian mex3-1 gene is required for non-stem cell fates and suppresses a stem cell fate in differentiating cells.
    1. Developmental Biology

    Enhancer additivity and non-additivity are determined by enhancer strength in the Drosophila embryo

    Jacques P Bothma, Hernan G Garcia ... Michael Levine
    Quantitative live imaging assays reveal that multiple enhancers often fail to work in an additive fashion in the patterning of the Drosophila embryo, and sometimes even interfere with one another.
    1. Cancer Biology
    2. Cell Biology

    Type I and II PRMTs inversely regulate post-transcriptional intron detention through Sm and CHTOP methylation

    Maxim I Maron, Alyssa D Casill ... David Shechter
    Biochemical, transcriptomic, and proteomic analyses reveal that protein arginine methyltransferases post-transcriptionally regulate intron detention—introns that persist in nuclear polyadenylated RNA—through methylation of RNA splicing and processing factors.
    1. Chromosomes and Gene Expression

    CRISPRi is not strand-specific at all loci and redefines the transcriptional landscape

    Françoise S Howe, Andrew Russell ... Jane Mellor
    CRISPR interference (CRISPRi), which uses small guide RNAs to target catalytically dead Cas9 protein to chromatin, disrupts existing transcription units and generates new sites for initiation and termination of transcription on both strands of DNA.

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