1,811 results found
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    E. coli TraR allosterically regulates transcription initiation by altering RNA polymerase conformation

    James Chen et al.
    Cryo-electron microscopy structures, combined with biochemical experiments, show how the E. coli F element-encoded TraR protein regulates transcription initiation by altering RNA polymerase conformation and conformational heterogeneity.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    CarD uses a minor groove wedge mechanism to stabilize the RNA polymerase open promoter complex

    Brian Bae et al.
    The crystal structure of Thermus transcription activation complexes containing the transcriptional activator CarD reveals a new mechanism for the activation of transcription.
    1. Biochemistry and Chemical Biology
    2. Microbiology and Infectious Disease

    Transcription inhibition by the depsipeptide antibiotic salinamide A

    David Degen et al.
    Salinamide A exerts antibacterial activity by binding to the bridge-helix cap of bacterial RNA polymerase and allosterically inhibiting nucleotide addition
    1. Chromosomes and Gene Expression

    RNA polymerase II stalling at pre-mRNA splice sites is enforced by ubiquitination of the catalytic subunit

    Laura Milligan et al.
    Ubiquitination close to the active site of RNAPII occurs in response to RNA processing events and is linked to transcriptional pausing, which is released following Bre5-Ubp3 mediated deubiquitination associated with the nascent transcript.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Structure and function of the mycobacterial transcription initiation complex with the essential regulator RbpA

    Elizabeth A Hubin et al.
    The essential mycobacterial transcription factor RbpA interacts with promoter DNA and cooperates with another essential transcription factor, CarD, to stimulate the formation of an intermediate leading to the open promoter complex.
    1. Microbiology and Infectious Disease

    pp32 and APRIL are host cell-derived regulators of influenza virus RNA synthesis from cRNA

    Kenji Sugiyama et al.
    The host-derived factors, pp32 and APRIL, interact with influenza viral RNA polymerase to support viral genomic RNA synthesis from complementary RNA.
    1. Biochemistry and Chemical Biology
    2. Cell Biology

    MAF1 represses CDKN1A through a Pol III-dependent mechanism

    Yu-Ling Lee et al.
    Pol II-mediated transcription and chromatin looping of CDKN1A are repressed by MAF1 through the regulation of Pol III activity.
    1. Structural Biology and Molecular Biophysics
    2. Chromosomes and Gene Expression

    The mechanism of variability in transcription start site selection

    Libing Yu et al.
    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. Biochemistry and Chemical Biology

    DNA polymerase V activity is autoregulated by a novel intrinsic DNA-dependent ATPase

    Aysen L Erdem et al.
    DNA synthesis by DNA polymerase V is regulated by an intrinsic DNA-dependent ATPase activity which has not been observed for any other polymerase.
    1. Structural Biology and Molecular Biophysics

    Molecular architecture of the yeast Mediator complex

    Philip J Robinson et al.
    Integrative modeling of results from chemical cross-linking, electron microscopy, and homology modeling yield a three-dimensional model of the entire Mediator complex in yeast.

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