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万見- EMDB-22206: Two mouse cGAS catalytic domain binding to human assembled nucleosome -
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データを開く
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基本情報
| 登録情報 | データベース: EMDB / ID: EMD-22206 | |||||||||
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| タイトル | Two mouse cGAS catalytic domain binding to human assembled nucleosome | |||||||||
マップデータ | two mouse cGAS binds to reconstituted human nucleosome | |||||||||
試料 |
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キーワード | Immunity / IMMUNE SYSTEM / IMMUNE SYSTEM-DNA complex | |||||||||
| 機能・相同性 | 機能・相同性情報regulation of immunoglobulin production / 2',3'-cyclic GMP-AMP synthase activity / cyclic GMP-AMP synthase / regulation of type I interferon production / poly-ADP-D-ribose modification-dependent protein binding / regulation of T cell activation / paracrine signaling / negative regulation of DNA repair / pattern recognition receptor signaling pathway / cGAS/STING signaling pathway ...regulation of immunoglobulin production / 2',3'-cyclic GMP-AMP synthase activity / cyclic GMP-AMP synthase / regulation of type I interferon production / poly-ADP-D-ribose modification-dependent protein binding / regulation of T cell activation / paracrine signaling / negative regulation of DNA repair / pattern recognition receptor signaling pathway / cGAS/STING signaling pathway / negative regulation of cGAS/STING signaling pathway / cellular response to exogenous dsRNA / cytoplasmic pattern recognition receptor signaling pathway / determination of adult lifespan / regulation of immune response / negative regulation of double-strand break repair via homologous recombination / nucleosome binding / negative regulation of megakaryocyte differentiation / positive regulation of defense response to virus by host / protein localization to CENP-A containing chromatin / positive regulation of type I interferon production / Chromatin modifying enzymes / Replacement of protamines by nucleosomes in the male pronucleus / phosphatidylinositol-4,5-bisphosphate binding / Packaging Of Telomere Ends / activation of innate immune response / Recognition and association of DNA glycosylase with site containing an affected purine / Cleavage of the damaged purine / telomere organization / Interleukin-7 signaling / Deposition of new CENPA-containing nucleosomes at the centromere / Recognition and association of DNA glycosylase with site containing an affected pyrimidine / Cleavage of the damaged pyrimidine / RNA Polymerase I Promoter Opening / Inhibition of DNA recombination at telomere / Assembly of the ORC complex at the origin of replication / SUMOylation of chromatin organization proteins / Regulation of endogenous retroelements by the Human Silencing Hub (HUSH) complex / Meiotic synapsis / DNA methylation / Condensation of Prophase Chromosomes / Chromatin modifications during the maternal to zygotic transition (MZT) / SIRT1 negatively regulates rRNA expression / HCMV Late Events / ERCC6 (CSB) and EHMT2 (G9a) positively regulate rRNA expression / PRC2 methylates histones and DNA / Regulation of endogenous retroelements by KRAB-ZFP proteins / Defective pyroptosis / HDACs deacetylate histones / Transcriptional regulation by small RNAs / Regulation of endogenous retroelements by Piwi-interacting RNAs (piRNAs) / RNA Polymerase I Promoter Escape / Nonhomologous End-Joining (NHEJ) / molecular condensate scaffold activity / HDMs demethylate histones / Activated PKN1 stimulates transcription of AR (androgen receptor) regulated genes KLK2 and KLK3 / RUNX1 regulates genes involved in megakaryocyte differentiation and platelet function / Negative Regulation of CDH1 Gene Transcription / NoRC negatively regulates rRNA expression / PKMTs methylate histone lysines / G2/M DNA damage checkpoint / Formation of the beta-catenin:TCF transactivating complex / B-WICH complex positively regulates rRNA expression / DNA Damage/Telomere Stress Induced Senescence / Meiotic recombination / Pre-NOTCH Transcription and Translation / Activation of anterior HOX genes in hindbrain development during early embryogenesis / Transcriptional regulation of granulopoiesis / nucleosomal DNA binding / RMTs methylate histone arginines / Metalloprotease DUBs / innate immune response in mucosa / HCMV Early Events / positive regulation of cellular senescence / structural constituent of chromatin / nucleosome / Regulation of PD-L1(CD274) transcription / UCH proteinases / site of double-strand break / nucleosome assembly / HATs acetylate histones / E3 ubiquitin ligases ubiquitinate target proteins / Recruitment and ATM-mediated phosphorylation of repair and signaling proteins at DNA double strand breaks / Factors involved in megakaryocyte development and platelet production / MLL4 and MLL3 complexes regulate expression of PPARG target genes in adipogenesis and hepatic steatosis / RUNX1 regulates transcription of genes involved in differentiation of HSCs / Dengue Virus-Host Interactions / Processing of DNA double-strand break ends / Senescence-Associated Secretory Phenotype (SASP) / double-stranded DNA binding / antimicrobial humoral immune response mediated by antimicrobial peptide / heterochromatin formation / antibacterial humoral response / Oxidative Stress Induced Senescence / chromatin organization / defense response to virus / Estrogen-dependent gene expression / nuclear body / chromosome, telomeric region / defense response to Gram-positive bacterium 類似検索 - 分子機能 | |||||||||
| 生物種 | Homo sapiens (ヒト) / ![]() | |||||||||
| 手法 | 単粒子再構成法 / クライオ電子顕微鏡法 / 解像度: 6.8 Å | |||||||||
データ登録者 | Xu P / Li P | |||||||||
| 資金援助 | 米国, 2件
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引用 | ジャーナル: Nature / 年: 2020タイトル: The molecular basis of tight nuclear tethering and inactivation of cGAS. 著者: Baoyu Zhao / Pengbiao Xu / Chesley M Rowlett / Tao Jing / Omkar Shinde / Yuanjiu Lei / A Phillip West / Wenshe Ray Liu / Pingwei Li / ![]() 要旨: Nucleic acids derived from pathogens induce potent innate immune responses. Cyclic GMP-AMP synthase (cGAS) is a double-stranded DNA sensor that catalyses the synthesis of the cyclic dinucleotide ...Nucleic acids derived from pathogens induce potent innate immune responses. Cyclic GMP-AMP synthase (cGAS) is a double-stranded DNA sensor that catalyses the synthesis of the cyclic dinucleotide cyclic GMP-AMP, which mediates the induction of type I interferons through the STING-TBK1-IRF3 signalling axis. cGAS was previously thought to not react with self DNA owing to its cytosolic localization; however, recent studies have shown that cGAS is localized mostly in the nucleus and has low activity as a result of tight nuclear tethering. Here we show that cGAS binds to nucleosomes with nanomolar affinity and that nucleosome binding potently inhibits its catalytic activity. To elucidate the molecular basis of cGAS inactivation by nuclear tethering, we determined the structure of mouse cGAS bound to human nucleosome by cryo-electron microscopy. The structure shows that cGAS binds to a negatively charged acidic patch formed by histones H2A and H2B via its second DNA-binding site. High-affinity nucleosome binding blocks double-stranded DNA binding and maintains cGAS in an inactive conformation. Mutations of cGAS that disrupt nucleosome binding alter cGAS-mediated signalling in cells. | |||||||||
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構造の表示
| ムービー |
ムービービューア |
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| 構造ビューア | EMマップ: SurfView Molmil Jmol/JSmol |
| 添付画像 |
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ダウンロードとリンク
-EMDBアーカイブ
| マップデータ | emd_22206.map.gz | 4 MB | EMDBマップデータ形式 | |
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| ヘッダ (付随情報) | emd-22206-v30.xml emd-22206.xml | 24.8 KB 24.8 KB | 表示 表示 | EMDBヘッダ |
| FSC (解像度算出) | emd_22206_fsc.xml | 7.8 KB | 表示 | FSCデータファイル |
| 画像 | emd_22206.png | 86.3 KB | ||
| Filedesc metadata | emd-22206.cif.gz | 7.4 KB | ||
| アーカイブディレクトリ | https://data.pdbj.org/pub/emdb/structures/EMD-22206 ftp://data.pdbj.org/pub/emdb/structures/EMD-22206 | HTTPS FTP |
-関連構造データ
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リンク
| EMDBのページ | EMDB (EBI/PDBe) / EMDataResource |
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| 「今月の分子」の関連する項目 |
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マップ
| ファイル | ダウンロード / ファイル: emd_22206.map.gz / 形式: CCP4 / 大きさ: 38.4 MB / タイプ: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| 注釈 | two mouse cGAS binds to reconstituted human nucleosome | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 投影像・断面図 | 画像のコントロール
画像は Spider により作成 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| ボクセルのサイズ | X=Y=Z: 1.07 Å | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 密度 |
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| 対称性 | 空間群: 1 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 詳細 | EMDB XML:
CCP4マップ ヘッダ情報:
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-添付データ
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試料の構成要素
+全体 : cGAS-nucleosome complex
+超分子 #1: cGAS-nucleosome complex
+超分子 #2: Histone
+超分子 #3: DNA
+超分子 #4: Cyclic GMP-AMP synthase
+分子 #1: Histone H3.2
+分子 #2: Histone H4
+分子 #3: Histone H2A type 1
+分子 #4: Histone H2B type 1-C/E/F/G/I
+分子 #7: Cyclic GMP-AMP synthase
+分子 #5: DNA (145-MER)
+分子 #6: DNA (145-MER)
+分子 #8: ZINC ION
-実験情報
-構造解析
| 手法 | クライオ電子顕微鏡法 |
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解析 | 単粒子再構成法 |
| 試料の集合状態 | particle |
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試料調製
| 濃度 | 0.4 mg/mL |
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| 緩衝液 | pH: 7.4 |
| 凍結 | 凍結剤: ETHANE / チャンバー内湿度: 100 % / チャンバー内温度: 298 K |
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電子顕微鏡法
| 顕微鏡 | FEI TITAN KRIOS |
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| 撮影 | フィルム・検出器のモデル: GATAN K2 SUMMIT (4k x 4k) 検出モード: COUNTING / 平均電子線量: 48.0 e/Å2 |
| 電子線 | 加速電圧: 300 kV / 電子線源: FIELD EMISSION GUN |
| 電子光学系 | 照射モード: FLOOD BEAM / 撮影モード: BRIGHT FIELD / Cs: 2.7 mm / 最大 デフォーカス(公称値): 1.8 µm 最小 デフォーカス(公称値): 0.7000000000000001 µm |
| 実験機器 | ![]() モデル: Titan Krios / 画像提供: FEI Company |
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コントローラー
万見について


キーワード
Homo sapiens (ヒト)
データ登録者
米国, 2件
引用
UCSF Chimera























Z (Sec.)
Y (Row.)
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解析

