3,932 results found
    1. Structural Biology and Molecular Biophysics

    Structural basis for transcription complex disruption by the Mfd translocase

    Jin Young Kang et al.
    Seven distinct cryo-electron microscopy structures delineate the elaborate mechanism for how E. coli Mfd, a transcription repair coupling factor, disassembles the RNA polymerase transcription elongation complex to initiate transcription-coupled repair.
    1. Neuroscience

    Mutant huntingtin impairs PNKP and ATXN3, disrupting DNA repair and transcription

    Rui Gao et al.
    Polyglutamine expansion in mutant huntingtin disrupts a novel transcription-coupled DNA repair complex, providing an undescribed mechanism of neuronal toxicity and degeneration in Huntington's disease.
    1. Structural Biology and Molecular Biophysics

    The complete structure of the human TFIIH core complex

    Basil J Greber et al.
    The structure of human transcription factor IIH, a critical DNA repair and transcription initiation factor, has been determined by cryo-electron microscopy.
    1. Cell Biology
    2. Chromosomes and Gene Expression

    E3 ubiquitin ligase Bre1 couples sister chromatid cohesion establishment to DNA replication in Saccharomyces cerevisiae

    Wei Zhang et al.
    E3 ubiquitin ligase Bre1-induced H2B monoubiquitination is epigenetically important for recruiting replication factor Mcm10 and cohesion establishment factors Ctf4, Ctf18 and Eco1 to early replication origins to establish sister chromatid cohesion.
    1. Chromosomes and Gene Expression

    CTCF confers local nucleosome resiliency after DNA replication and during mitosis

    Nick Owens et al.
    In contrast to other transcription factors, CTCF and Esrrb rapidly regain binding after replication and remain bound to their targets during mitosis, preserving local nucleosome organization throughout the cell cycle.
    1. Chromosomes and Gene Expression

    A simple method for generating high-resolution maps of genome-wide protein binding

    Peter J Skene, Steven Henikoff
    Building on previous work (Skene et al., 2014), we show that a new ChIP-seq protocol provides superior resolution and ease of use at low sequence depth of coverage for generating genome-wide maps of protein binding.
    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.
    1. Chromosomes and Gene Expression

    PARP1-dependent recruitment of the FBXL10-RNF68-RNF2 ubiquitin ligase to sites of DNA damage controls H2A.Z loading

    Gergely Rona et al.
    Upon genotoxic stress, the FBXL10-RNF68-RNF2 ubiquitin ligase complex mono-ubiquitylates histone H2A and mediates H2A/H2A.Z exchange to repress transcription and ensures proper high fidelity homologous recombination repair.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    NusG inhibits RNA polymerase backtracking by stabilizing the minimal transcription bubble

    Matti Turtola, Georgiy A Belogurov
    NusG enhances transcription elongation by stabilizing DNA base pairs immediately upstream of the RNA-DNA hybrid but does not measurably affect the nucleotide incorporation and the forward translocation by RNA polymerase.
    1. Physics of Living Systems

    Deciphering the regulatory genome of Escherichia coli, one hundred promoters at a time

    William T Ireland et al.
    A combination of massively parallel reporter assays and mass spectrometry uncovers the regulation of previously unexplored promoters across the Escherichia coli genome.

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