response to oxygen-glucose deprivation / hippocampal neuron apoptotic process / poly-ADP-D-ribose binding / positive regulation of cell growth involved in cardiac muscle cell development / NAD+-protein-serine ADP-ribosyltransferase activity / NAD DNA ADP-ribosyltransferase activity / DNA ADP-ribosylation / poly-ADP-D-ribose modification-dependent protein binding / HDR through MMEJ (alt-NHEJ) / NAD+ ADP-ribosyltransferase ...response to oxygen-glucose deprivation / hippocampal neuron apoptotic process / poly-ADP-D-ribose binding / positive regulation of cell growth involved in cardiac muscle cell development / NAD+-protein-serine ADP-ribosyltransferase activity / NAD DNA ADP-ribosyltransferase activity / DNA ADP-ribosylation / poly-ADP-D-ribose modification-dependent protein binding / HDR through MMEJ (alt-NHEJ) / NAD+ ADP-ribosyltransferase / protein auto-ADP-ribosylation / NAD+-protein-aspartate ADP-ribosyltransferase activity / protein poly-ADP-ribosylation / NAD+-protein-glutamate ADP-ribosyltransferase activity / DNA repair-dependent chromatin remodeling / NAD+-protein mono-ADP-ribosyltransferase activity / site of DNA damage / NAD+ poly-ADP-ribosyltransferase activity / decidualization / 転移酵素; グリコシル基を移すもの; 五炭糖残基を移すもの / POLB-Dependent Long Patch Base Excision Repair / negative regulation of tumor necrosis factor-mediated signaling pathway / negative regulation of megakaryocyte differentiation / protein localization to CENP-A containing chromatin / Chromatin modifying enzymes / Replacement of protamines by nucleosomes in the male pronucleus / CENP-A containing nucleosome / nucleosome binding / Packaging Of Telomere Ends / Recognition and association of DNA glycosylase with site containing an affected purine / Cleavage of the damaged purine / extrinsic apoptotic signaling pathway / Recognition and association of DNA glycosylase with site containing an affected pyrimidine / Cleavage of the damaged pyrimidine / Deposition of new CENPA-containing nucleosomes at the centromere / telomere organization / nucleotidyltransferase activity / Inhibition of DNA recombination at telomere / Meiotic synapsis / Interleukin-7 signaling / RNA Polymerase I Promoter Opening / Assembly of the ORC complex at the origin of replication / Regulation of endogenous retroelements by the Human Silencing Hub (HUSH) complex / innate immune response in mucosa / SUMOylation of chromatin organization proteins / DNA methylation / Condensation of Prophase Chromosomes / Chromatin modifications during the maternal to zygotic transition (MZT) / HCMV Late Events / SIRT1 negatively regulates rRNA expression / epigenetic regulation of gene expression / ERCC6 (CSB) and EHMT2 (G9a) positively regulate rRNA expression / PRC2 methylates histones and DNA / Regulation of endogenous retroelements by KRAB-ZFP proteins / Defective pyroptosis / Regulation of endogenous retroelements by Piwi-interacting RNAs (piRNAs) / HDACs deacetylate histones / Nonhomologous End-Joining (NHEJ) / RNA Polymerase I Promoter Escape / lipopolysaccharide binding / Transcriptional regulation by small RNAs / Formation of the beta-catenin:TCF transactivating complex / RUNX1 regulates genes involved in megakaryocyte differentiation and platelet function / Activated PKN1 stimulates transcription of AR (androgen receptor) regulated genes KLK2 and KLK3 / G2/M DNA damage checkpoint / HDMs demethylate histones / DNA Damage Recognition in GG-NER / NoRC negatively regulates rRNA expression / base-excision repair / DNA Damage/Telomere Stress Induced Senescence / B-WICH complex positively regulates rRNA expression / PKMTs methylate histone lysines / Meiotic recombination / Pre-NOTCH Transcription and Translation / Dual Incision in GG-NER / Metalloprotease DUBs / RMTs methylate histone arginines / Activation of anterior HOX genes in hindbrain development during early embryogenesis / Formation of Incision Complex in GG-NER / Transcriptional regulation of granulopoiesis / HCMV Early Events / antimicrobial humoral immune response mediated by antimicrobial peptide / structural constituent of chromatin / antibacterial humoral response / UCH proteinases / nucleosome / heterochromatin formation / double-strand break repair / E3 ubiquitin ligases ubiquitinate target proteins / nucleosome assembly / Recruitment and ATM-mediated phosphorylation of repair and signaling proteins at DNA double strand breaks / chromatin organization / HATs acetylate histones / RUNX1 regulates transcription of genes involved in differentiation of HSCs / Factors involved in megakaryocyte development and platelet production / MLL4 and MLL3 complexes regulate expression of PPARG target genes in adipogenesis and hepatic steatosis / Processing of DNA double-strand break ends / Senescence-Associated Secretory Phenotype (SASP) / defense response to Gram-negative bacterium / Oxidative Stress Induced Senescence 類似検索 - 分子機能
National Institutes of Health/National Cancer Institute (NIH/NCI)
R01 CA218255
米国
引用
ジャーナル: PLoS One / 年: 2020 タイトル: Bridging of nucleosome-proximal DNA double-strand breaks by PARP2 enhances its interaction with HPF1. 著者: Guillaume Gaullier / Genevieve Roberts / Uma M Muthurajan / Samuel Bowerman / Johannes Rudolph / Jyothi Mahadevan / Asmita Jha / Purushka S Rae / Karolin Luger / 要旨: Poly(ADP-ribose) Polymerase 2 (PARP2) is one of three DNA-dependent PARPs involved in the detection of DNA damage. Upon binding to DNA double-strand breaks, PARP2 uses nicotinamide adenine ...Poly(ADP-ribose) Polymerase 2 (PARP2) is one of three DNA-dependent PARPs involved in the detection of DNA damage. Upon binding to DNA double-strand breaks, PARP2 uses nicotinamide adenine dinucleotide to synthesize poly(ADP-ribose) (PAR) onto itself and other proteins, including histones. PAR chains in turn promote the DNA damage response by recruiting downstream repair factors. These early steps of DNA damage signaling are relevant for understanding how genome integrity is maintained and how their failure leads to genome instability or cancer. There is no structural information on DNA double-strand break detection in the context of chromatin. Here we present a cryo-EM structure of two nucleosomes bridged by human PARP2 and confirm that PARP2 bridges DNA ends in the context of nucleosomes bearing short linker DNA. We demonstrate that the conformation of PARP2 bound to damaged chromatin provides a binding platform for the regulatory protein Histone PARylation Factor 1 (HPF1), and that the resulting HPF1•PARP2•nucleosome complex is enzymatically active. Our results contribute to a structural view of the early steps of the DNA damage response in chromatin.
EMPIAR-10336 (タイトル: Structure of two nucleosomes bridged by human PARP2 Data size: 677.3 Data #1: Single-particle images of the PARP2-nucleosome complex [picked particles - single frame - unprocessed] Data #2: Unaligned multi-frame micrographs of the PARP2-nucleosome complex [micrographs - multiframe])
名称: Two nucleosomes bridged by PARP2 / タイプ: complex / ID: 1 / 親要素: 0 / 含まれる分子: all 詳細: Two nucleosomes bridged by human PARP2. Full-length PARP2 was used to prepare the complex, but only the WGR domain showed density in the map.
名称: Widom 601 DNA (160-MER) / タイプ: dna / ID: 1 詳細: Widom 601 nucleosome positioning sequence with 7 and 11 additional terminal base pairs コピー数: 2 / 分類: DNA
試料ホルダーモデル: GATAN 626 SINGLE TILT LIQUID NITROGEN CRYO TRANSFER HOLDER ホルダー冷却材: NITROGEN
実験機器
モデル: Tecnai F30 / 画像提供: FEI Company
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画像解析
粒子像選択
選択した数: 226250 詳細: Picked using crYOLO version 1.3.1 with a model trained on the same dataset (with the generic model provided with crYOLO used as pre-trained weights).
初期モデル
モデルのタイプ: INSILICO MODEL In silico モデル: Model generated with the InitialModel procedure in RELION