4,567 results found
    1. Chromosomes and Gene Expression
    2. Genetics and Genomics

    Regulatory Networks: Reality check for transposon enhancers

    Julie Brind'Amour, Dixie L Mager
    Hundreds of retrovirus-like sequences have features that suggest they might be gene enhancers, but only a small fraction displays gene-regulating activity in experiments on mouse stem cells.
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    1. Biochemistry and Chemical Biology
    2. Cell Biology

    Gene activation by a CRISPR-assisted trans enhancer

    Xinhui Xu et al.
    Both exogenous and endogenous genes can be highly activated in cells by a new dCas9-based activator, CRISPR-assisted trans enhancer, that can be used to activate genes for biomedical applications.
    1. Chromosomes and Gene Expression

    PLZF targets developmental enhancers for activation during osteogenic differentiation of human mesenchymal stem cells

    Shuchi Agrawal Singh et al.
    A key transcription-factor for osteogenic differentiation, PLZF, acts as a transcriptional activator by binding to active developmental enhancers and facilitates mediator recruitment, but is not involved in enhancer looping.
    1. Computational and Systems Biology
    2. Immunology and Inflammation

    Affinity and dose of TCR engagement yield proportional enhancer and gene activity in CD4+ T cells

    Karmel A Allison et al.
    Pre-existing enhancers interpret T cell signaling strength in an analogue manner to direct quantitative changes in gene expression within the context of an overall digital response.
    1. Structural Biology and Molecular Biophysics
    2. Chromosomes and Gene Expression

    Nuclear microenvironments modulate transcription from low-affinity enhancers

    Albert Tsai et al.
    Efficient transcription from low-affinity enhancers is driven by nuclear microenvironments of transcription factors.
    1. Developmental Biology
    2. Chromosomes and Gene Expression

    Mapping cell type-specific transcriptional enhancers using high affinity, lineage-specific Ep300 bioChIP-seq

    Pingzhu Zhou et al.
    A method for measuring p300 chromatin occupancy in specific lineages of mouse tissues was used to map endothelial enhancers and to identify previously unrecognized angiogenesis-related sequence motifs.
    1. Chromosomes and Gene Expression
    2. Evolutionary Biology

    Uncoupling evolutionary changes in DNA sequence, transcription factor occupancy and enhancer activity

    Pierre Khoueiry et al.
    Interspecies comparison of transcription factor occupancy during embryogenesis reveals potential co-operative relationships between factors and uncovers the inherent plasticity of developmental enhancers to overcome divergence in transcription factor occupancy.
    1. Cancer Biology

    MYC activation and BCL2L11 silencing by a tumour virus through the large-scale reconfiguration of enhancer-promoter hubs

    C David Wood et al.
    Epstein-Barr virus controls B-cell growth and survival through large-scale reorganization of the enhancers of the MYC and BCL2L11 genes, and may promote MYC translocations as a result.
    1. Chromosomes and Gene Expression

    Live-cell imaging reveals enhancer-dependent Sox2 transcription in the absence of enhancer proximity

    Jeffrey M Alexander et al.
    Sox2 transcription is not correlated with spatial proximity of its essential regulatory enhancer in embryonic stem cells, suggesting gene transcription is not limited to periods of direct enhancer-promoter contact.
    1. Chromosomes and Gene Expression
    2. Developmental Biology

    Multi-enhancer transcriptional hubs confer phenotypic robustness

    Albert Tsai et al.
    Multiple enhancers in physical proximity can reinforce shared transcriptional 'hubs' to preserve their transcriptional output, providing a buffer during environmental stresses and genetic perturbations to preserve phenotypic robustness.

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