931 results found
    1. Cancer Biology
    2. Genetics and Genomics

    Mismatch repair-signature mutations activate gene enhancers across human colorectal cancer epigenomes

    Stevephen Hung, Alina Saiakhova ... Peter C Scacheri
    Non-coding mutations in microsatellite-instable (MSI) colorectal tumors are prevalent and activate cancer-specific enhancers, thereby disrupting gene expression control.
    1. Chromosomes and Gene Expression
    2. Evolutionary Biology

    Intrinsic cooperativity potentiates parallel cis-regulatory evolution

    Trevor R Sorrells, Amanda N Johnson ... Alexander D Johnson
    Cooperativity between two transcription regulators occurs through protein-protein interactions with a general transcription factor complex and potentiates the parallel evolution of their DNA binding sites.
    1. Computational and Systems Biology
    2. Genetics and Genomics

    Information content differentiates enhancers from silencers in mouse photoreceptors

    Ryan Z Friedman, David M Granas ... Michael A White
    Silencers and enhancers targeted by a common transcription factor in photoreceptors are distinguished by the number and diversity of binding transcription factor binding sites they contain.
    1. Genetics and Genomics

    On the mechanistic nature of epistasis in a canonical cis-regulatory element

    Mato Lagator, Tiago Paixão ... Călin C Guet
    Thermodynamic framework accurately predicts the sign of epistasis and its environment dependence for a canonical cis-regulatory element.
    1. Genetics and Genomics

    Regulatory network structure determines patterns of intermolecular epistasis

    Mato Lagator, Srdjan Sarikas ... Călin C Guet
    Greater phenotypic variation is exposed by mutations in a gene regulatory system compared to mutations in its constitutive components, namely the transcription factor and the promoter, alone.
    1. Chromosomes and Gene Expression
    2. Genetics and Genomics

    A combination of transcription factors mediates inducible interchromosomal contacts

    Seungsoo Kim, Maitreya J Dunham, Jay Shendure
    A pooled mutational scanning approach for 3D chromosome conformation reveals how multiple transcription factors can jointly specify condition-specific genome conformations.
    1. Evolutionary Biology
    2. Genetics and Genomics

    Cis-regulatory modes of Ultrabithorax inactivation in butterfly forewings

    Amruta Tendolkar, Anyi Mazo-Vargas ... Arnaud Martin
    CRISPR knock-outs and functional genomic approaches probe the regulatory mechanism restricting the Hox gene Ubx to butterfly hindwings, explaining color pattern differentiation from forewings.
    1. Evolutionary Biology
    2. Genetics and Genomics

    Mutational sources of trans-regulatory variation affecting gene expression in Saccharomyces cerevisiae

    Fabien Duveau, Petra Vande Zande ... Patricia J Wittkopp
    Mapping mutations affecting gene expression within the yeast genome and within a gene regulatory network reveals properties of the raw material for regulatory variation.
    1. Cancer Biology
    2. Chromosomes and Gene Expression

    Characterization of the mechanism by which the RB/E2F pathway controls expression of the cancer genomic DNA deaminase APOBEC3B

    Pieter A Roelofs, Chai Yeen Goh ... Reuben S Harris
    The antiviral and genomic DNA deaminase APOBEC3B is repressed in normal cells by PRC1.6/E2F6 and DREAM/E2F4 complexes and deregulation of this axis provides a unifying mechanism for overexpression in cancer.
    1. Developmental Biology
    2. Evolutionary Biology

    Architecture and evolution of the cis-regulatory system of the echinoderm kirrelL gene

    Jian Ming Khor, Charles A Ettensohn
    The transcriptional control system of a sea urchin gene reveals the deep evolutionary conservation of a gene regulatory network underlying morphogenesis.

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