2,225 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. 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. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Crystal structures of DNA polymerase I capture novel intermediates in the DNA synthesis pathway

    Nicholas Chim et al.
    Insight into the mechanism of DNA synthesis is provided by the crystal structures of DNA polymerase intermediates.
    1. Structural Biology and Molecular Biophysics
    2. Chromosomes and Gene Expression

    Mechanism for priming DNA synthesis by yeast DNA Polymerase α

    Rajika L Perera et al.
    The details of how the enzyme DNA polymerase α initiates the polymerization of nucleotides in DNA replication, a critical step in the synthesis of new chromosomal DNA, have been revealed in atomic detail.
    1. Developmental Biology
    2. Chromosomes and Gene Expression

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

    Kai Chen et al.
    The first zygotic genes are transcribed without RNA polymerase II pausing from a TATA-enriched promoter.
    1. Chromosomes and Gene Expression

    HIV Tat controls RNA Polymerase II and the epigenetic landscape to transcriptionally reprogram target immune cells

    Jonathan E Reeder et al.
    Tat uses unexpected regulatory mechanisms to reprogram target immune cells to promote viral replication and rewire pathways beneficial for HIV.
    1. Cell Biology
    2. Structural Biology and Molecular Biophysics

    Design principles of a microtubule polymerase

    Elisabeth A Geyer et al.
    Antagonism between binding to unpolymerized subunits and to the lattice leads to a ratcheting model for the processive action of a microtubule polymerase.
    1. Computational and Systems Biology

    CDK9-dependent RNA polymerase II pausing controls transcription initiation

    Saskia Gressel et al.
    CDK9 inhibition in human cells uncovers that Pol II pause duration regulates the frequency of productive transcription initiation.
    1. Chromosomes and Gene Expression
    2. Genetics and Genomics

    Requirements for RNA polymerase II preinitiation complex formation in vivo

    Natalia Petrenko et al.
    The requirements for preinitiation complex formation/stability and transcription by RNA polymerase II in yeast cells are different from those in vitro, thereby altering the current view of basal transcription.
    1. Structural Biology and Molecular Biophysics

    Single-molecule view of coordination in a multi-functional DNA polymerase

    Raymond F Pauszek III et al.
    The primer extension and 5' flap processing activities of DNA polymerase I are physically coordinated by combined movements of the DNA substrate and the 5' nuclease domain of the enzyme.

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