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

    Insights into the molecular architecture and histone H3-H4 deposition mechanism of yeast Chromatin assembly factor 1

    Paul Victor Sauer, Jennifer Timm ... Daniel Panne
    The CAF1 complex binds single histone H3-H4 dimers, and two such complexes associate with extended DNA elements to ensure the deposition of H3-H4 tetramers, the first step in the assembly of nucleosomes.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    DNA-mediated association of two histone-bound complexes of yeast Chromatin Assembly Factor-1 (CAF-1) drives tetrasome assembly in the wake of DNA replication

    Francesca Mattiroli, Yajie Gu ... Karolin Luger
    After DNA replication, nucleosomes are assembled by two histone chaperone complexes each bound to an H3-H4 histone dimer, suggesting the feasibility for a semi-conservative mode of epigenome inheritance.
    1. Chromosomes and Gene Expression
    2. Structural Biology and Molecular Biophysics

    A novel single alpha-helix DNA-binding domain in CAF-1 promotes gene silencing and DNA damage survival through tetrasome-length DNA selectivity and spacer function

    Ruben Rosas, Rhiannon R Aguilar ... Mair EA Churchill
    The lysine/glutamic acid/arginine region in chromatin assembly factor (CAF-1) forms a long single alpha-helix DNA-binding domain, facilitating the recognition of tetrasome-length DNA and linking functional domains within the CAF-1 architecture for efficient tetrasome assembly after DNA synthesis.
    1. Structural Biology and Molecular Biophysics
    2. Chromosomes and Gene Expression

    The Cac1 subunit of histone chaperone CAF-1 organizes CAF-1-H3/H4 architecture and tetramerizes histones

    Wallace H Liu, Sarah C Roemer ... Mair EA Churchill
    Biophysical and biochemical approaches reveal new insights into the architecture of CAF-1 and the unique mechanism by which CAF-1 tetramerizes histones H3/H4.
    1. Chromosomes and Gene Expression
    2. Genetics and Genomics

    Transcription elongation is finely tuned by dozens of regulatory factors

    Mary Couvillion, Kevin M Harlen ... L Stirling Churchman
    NET-seq analysis of 41 S. cerevisiae transcription regulatory factors uncovers their differential and opposing effects on Pol II transcription elongation and antisense transcription, revealing that wild-type transcription is balanced by the joint impact of many regulators.
    1. Chromosomes and Gene Expression

    NuRD and CAF-1-mediated silencing of the D4Z4 array is modulated by DUX4-induced MBD3L proteins

    Amy E Campbell, Sean C Shadle ... Stephen J Tapscott
    CRISPR/Cas9 engineered locus-specific proteomics leads to the identification of NuRD, CAF-1, and MBD3L2 as regulators of the early embryonic transcription factor DUX4.
    1. Biochemistry and Chemical Biology
    2. Chromosomes and Gene Expression

    Constitutive turnover of histone H2A.Z at yeast promoters requires the preinitiation complex

    Michael Tramantano, Lu Sun ... Ed Luk
    The transcription machinery is required for the disassembly of the promoter-proximal H2A.Z nucleosome, contributing to the constitutive histone turnover at yeast promoters.
    1. Developmental Biology

    A gene regulatory network for neural induction

    Katherine E Trevers, Hui-Chun Lu ... Claudio D Stern
    A comprehensive resource based on analysis of the responses of embryonic ectoderm cells to signals from the 'organizer' (the node) including transcriptional responses and epigenetic changes with fine temporal dynamics, predicted regulatory interactions, and conservation among vertebrates.
    1. Developmental Biology

    HDAC1 SUMOylation promotes Argonaute-directed transcriptional silencing in C. elegans

    Heesun Kim, Yue-He Ding ... Craig C Mello
    HDAC SUMOylation promotes the association of other chromatin remodeling factors with the nuclear Argonaute WAGO-9, which is required for de novo heterochromatin silencing.
    1. Genetics and Genomics

    PIE-1 SUMOylation promotes germline fates and piRNA-dependent silencing in C. elegans

    Heesun Kim, Yue-He Ding ... Craig C Mello
    PIE-1 engages SUMO to preserve the embryonic germline fate and also to promote the assembly of a MEP-1/Mi-2/HDA-1 chromatin remodeling complex required for inherited Argonaute-mediated gene silencing in the adult hermaphrodite germline.

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