1,720 results found
    1. Chromosomes and Gene Expression

    Reporter-ChIP-nexus reveals strong contribution of the Drosophila initiator sequence to RNA polymerase pausing

    Wanqing Shao, Sergio G-M Alcantara, Julia Zeitlinger
    Reporter-ChIP-nexus captures paused Pol II on transfected plasmids and shows that pausing stability is influenced by core promoter sequences, especially by the initiator with a G at +2 position.
    1. Developmental Biology
    2. Chromosomes and Gene Expression

    A global change in RNA polymerase II pausing during the Drosophila midblastula transition

    Kai Chen, Jeff Johnston ... Julia Zeitlinger
    The first zygotic genes are transcribed without RNA polymerase II pausing from a TATA-enriched promoter.
    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.
    1. Chromosomes and Gene Expression

    Conserved noncoding transcription and core promoter regulatory code in early Drosophila development

    Philippe J Batut, Thomas R Gingeras
    Gene expression timing during Drosophila development is specified by multiple classes of RNA polymerase II core promoters, and the embryonic transcriptome includes thousands of evolutionarily conserved long noncoding RNAs.
    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. Developmental Biology
    2. Evolutionary Biology

    An ancient yet flexible cis-regulatory architecture allows localized Hedgehog tuning by patched/Ptch1

    David S Lorberbaum, Andrea I Ramos ... Scott Barolo
    The seemingly simple, constitutive response of the patched/Ptch1 gene to Hedgehog signaling is in fact regulated by large batteries of context-specific Hedgehog-responsive enhancers in both fly and mouse, allowing tissue-specific tuning of the Hedgehog pathway in animal development and evolution.
    1. Developmental Biology
    2. Chromosomes and Gene Expression

    Core promoter factor TAF9B regulates neuronal gene expression

    Francisco J Herrera, Teppei Yamaguchi ... Robert Tjian
    An orphan TBP-associated factor, TAF9B, works in conjunction with the histone acetyl-transferase PCAF as transcriptional co-regulators of neuronal differentiation.
    1. Structural Biology and Molecular Biophysics
    2. Chromosomes and Gene Expression

    The mechanism of variability in transcription start site selection

    Libing Yu, Jared T Winkelman ... Richard H Ebright
    Variability in bacterial transcription start site selection involves DNA “scrunching” and “anti-scrunching,” which may represent a general mechanism for start site selection in all organisms.
    1. Genetics and Genomics
    2. Microbiology and Infectious Disease

    An analog to digital converter controls bistable transfer competence development of a widespread bacterial integrative and conjugative element

    Nicolas Carraro, Xavier Richard ... Jan Roelof van der Meer
    A new multistep hierarchical cascade controls activation of an integrative and conjugative element in a small subpopulation of cells in its bacterial host, yielding proficient DNA transferring cells.
    1. Biochemistry and Chemical Biology
    2. Genetics and Genomics

    Genome-wide dynamics of Pol II elongation and its interplay with promoter proximal pausing, chromatin, and exons

    Iris Jonkers, Hojoong Kwak, John T Lis
    The elongation rate of RNA Polymerase II varies greatly between and along genes, as this enzyme accelerates from stable pausing to rapid elongation within genes, and is influenced by CG-content, exons and chromatin.

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