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    1. Biochemistry and Chemical Biology

    Tyr1 phosphorylation promotes phosphorylation of Ser2 on the C-terminal domain of eukaryotic RNA polymerase II by P-TEFb

    Joshua E Mayfield et al.
    The phosphorylation of tyrosine in the heptad repeat of the C-terminal domain of the largest subunit of RNA polymerase II promotes Ser2 phosphorylation by P-TEFb for pausing release.
    1. Chromosomes and Gene Expression

    RNA Polymerase II cluster dynamics predict mRNA output in living cells

    Won-Ki Cho et al.
    Quantitative super resolution imaging, in live mammalian cells, reveals a direct relationship between protein clustering dynamics and the number of mRNA transcribed at an endogenous gene locus.
    1. Biochemistry and Chemical Biology
    2. Chromosomes and Gene Expression

    Compensatory induction of MYC expression by sustained CDK9 inhibition via a BRD4-dependent mechanism

    Huasong Lu et al.
    A new potent and selective CDK9 inhibitor induces the expression of the proto-oncogene MYC via a mechanism that depends on the bromodomain protein BRD4.
    1. Biochemistry and Chemical Biology

    JMJD6 cleaves MePCE to release positive transcription elongation factor b (P-TEFb) in higher eukaryotes

    Schuyler Lee et al.
    JMJD6 helps BRD4 to recruit CDK9 to RNA Polymerase II by disrupting 7SK snRNP complex.
    1. Cell Biology
    2. Chromosomes and Gene Expression

    Set1/COMPASS and Mediator are repurposed to promote epigenetic transcriptional memory

    Agustina D'Urso et al.
    Epigenetic transcriptional memory employs a novel regulatory strategy to create a heritable poised state by remodeling and repurposing complexes involved in active transcription.
    1. Chromosomes and Gene Expression
    2. Computational and Systems Biology

    Transcriptome maps of general eukaryotic RNA degradation factors

    Salma Sohrabi-Jahromi et al.
    Mapping of 30 general RNA degradation factors onto the yeast transcriptome provides the global distribution of factors for RNA turnover and surveillance in a eukaryotic cell.
    1. Chromosomes and Gene Expression

    The nucleosomal barrier to promoter escape by RNA polymerase II is overcome by the chromatin remodeler Chd1

    Peter J Skene et al.
    The ATP-dependent chromatin remodeler Chd1 controls nucleosome turnover to allow RNA Polymerase to transcribe in vivo.
    1. Structural Biology and Molecular Biophysics

    Structural mechanism of ATP-independent transcription initiation by RNA polymerase I

    Yan Han et al.
    Structures of RNA polymerase I transcription machinery revealed a ratcheting motion within the complex in coordination with three distinct functional states, implicating a novel mechanism for promoter bubble opening in the absence of ATP hydrolysis.
    1. Chromosomes and Gene Expression

    p50-associated COX-2 extragenic RNA (PACER) activates COX-2 gene expression by occluding repressive NF-κB complexes

    Michal Krawczyk, Beverly M Emerson
    A long non-coding RNA removes the transcriptional repressor p50 to regulate recruitment of co-activator p300 and RNA Polymerase II complexes to activate the COX-2 gene in human mammary epithelial cells and macrophages.
    1. Structural Biology and Molecular Biophysics

    High-resolution and high-accuracy topographic and transcriptional maps of the nucleosome barrier

    Zhijie Chen et al.
    Direct observation of RNA Polymerase II transcription through a single nucleosome at near basepair resolution suggests a mechanism for selective control of gene expression.