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基本情報
登録情報 | ![]() | |||||||||||||||
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タイトル | SIRT7-H3K36MTUnucleosome complex | |||||||||||||||
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![]() | nucleosome complex / DNA | |||||||||||||||
機能・相同性 | ![]() regulation of transcription of nucleolar large rRNA by RNA polymerase I / nucleolus organizer region / protein depropionylation / NAD-dependent protein-lysine depropionylase activity / protein deglutarylation / protein-glutaryllysine deglutarylase activity / histone H3K18 deacetylase activity, NAD-dependent / protein-succinyllysine desuccinylase activity / R-loop processing / homologous chromosome pairing at meiosis ...regulation of transcription of nucleolar large rRNA by RNA polymerase I / nucleolus organizer region / protein depropionylation / NAD-dependent protein-lysine depropionylase activity / protein deglutarylation / protein-glutaryllysine deglutarylase activity / histone H3K18 deacetylase activity, NAD-dependent / protein-succinyllysine desuccinylase activity / R-loop processing / homologous chromosome pairing at meiosis / protein methyltransferase activity / NAD-dependent protein lysine deacetylase activity / transposable element silencing / protein acetyllysine N-acetyltransferase / positive regulation of rRNA processing / protein deacetylation / regulation of protein export from nucleus / regulation of mitochondrion organization / DNA repair-dependent chromatin remodeling / positive regulation of transcription by RNA polymerase I / rRNA transcription / NAD+ binding / negative regulation of tumor necrosis factor-mediated signaling pathway / negative regulation of megakaryocyte differentiation / protein localization to CENP-A containing chromatin / regulation of DNA repair / Chromatin modifying enzymes / Replacement of protamines by nucleosomes in the male pronucleus / CENP-A containing nucleosome / Packaging Of Telomere Ends / Recognition and association of DNA glycosylase with site containing an affected purine / Cleavage of the damaged purine / 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 / negative regulation of protein ubiquitination / 転移酵素; アシル基を移すもの; アミノアシル基以外のアシル基を移すもの / positive regulation of gluconeogenesis / telomere organization / Interleukin-7 signaling / Inhibition of DNA recombination at telomere / RNA Polymerase I Promoter Opening / Meiotic synapsis / negative regulation of phosphatidylinositol 3-kinase/protein kinase B signal transduction / Assembly of the ORC complex at the origin of replication / transcription initiation-coupled chromatin remodeling / SUMOylation of chromatin organization proteins / Regulation of endogenous retroelements by the Human Silencing Hub (HUSH) complex / DNA methylation / Condensation of Prophase Chromosomes / Chromatin modifications during the maternal to zygotic transition (MZT) / HCMV Late Events / SIRT1 negatively regulates rRNA expression / ERCC6 (CSB) and EHMT2 (G9a) positively regulate rRNA expression / PRC2 methylates histones and DNA / innate immune response in mucosa / Regulation of endogenous retroelements by KRAB-ZFP proteins / Defective pyroptosis / HDMs demethylate histones / Regulation of endogenous retroelements by Piwi-interacting RNAs (piRNAs) / HDACs deacetylate histones / RNA Polymerase I Promoter Escape / Nonhomologous End-Joining (NHEJ) / 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 / Metalloprotease DUBs / NoRC negatively regulates rRNA expression / DNA Damage/Telomere Stress Induced Senescence / B-WICH complex positively regulates rRNA expression / PKMTs methylate histone lysines / Meiotic recombination / Pre-NOTCH Transcription and Translation / RMTs methylate histone arginines / Activation of anterior HOX genes in hindbrain development during early embryogenesis / Transcriptional regulation of granulopoiesis / UCH proteinases / HCMV Early Events / osteoblast differentiation / antimicrobial humoral immune response mediated by antimicrobial peptide / structural constituent of chromatin / antibacterial humoral response / E3 ubiquitin ligases ubiquitinate target proteins / Recruitment and ATM-mediated phosphorylation of repair and signaling proteins at DNA double strand breaks / nucleosome / heterochromatin formation / site of double-strand break / RUNX1 regulates transcription of genes involved in differentiation of HSCs / nucleosome assembly / Processing of DNA double-strand break ends / HATs acetylate histones / chromatin organization / Senescence-Associated Secretory Phenotype (SASP) / Factors involved in megakaryocyte development and platelet production / MLL4 and MLL3 complexes regulate expression of PPARG target genes in adipogenesis and hepatic steatosis / Oxidative Stress Induced Senescence / defense response to Gram-negative bacterium 類似検索 - 分子機能 | |||||||||||||||
生物種 | ![]() | |||||||||||||||
手法 | 単粒子再構成法 / クライオ電子顕微鏡法 / 解像度: 2.8 Å | |||||||||||||||
![]() | Moreno-Yruela C / Ekundayo B / Foteva P / Calvino-Sanles E / Ni D / Stahlberg H / Fierz B | |||||||||||||||
資金援助 | ![]() ![]() ![]()
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![]() | ![]() タイトル: Structural basis of SIRT7 nucleosome engagement and substrate specificity. 著者: Carlos Moreno-Yruela / Babatunde E Ekundayo / Polina N Foteva / Dongchun Ni / Esther Calvino-Sanles / Henning Stahlberg / Beat Fierz / ![]() 要旨: Chromatin-modifying enzymes target distinct residues within histones to finetune gene expression profiles. SIRT7 is an NAD-dependent deacylase often deregulated in cancer, which deacetylates either ...Chromatin-modifying enzymes target distinct residues within histones to finetune gene expression profiles. SIRT7 is an NAD-dependent deacylase often deregulated in cancer, which deacetylates either H3 lysine 36 (H3K36) or H3K18 with high specificity within nucleosomes. Here, we report structures of nucleosome-bound SIRT7, and uncover the structural basis of its specificity towards H3K36 and K18 deacylation, combining a mechanism-based cross-linking strategy, cryo-EM, and enzymatic and cellular assays. We show that the SIRT7 N-terminus represents a unique, extended nucleosome-binding domain, reaching across the nucleosomal surface to the acidic patch. The catalytic domain binds at the H3-tail exit site, engaging both DNA gyres of the nucleosome. Contacting H3K36 versus H3K18 requires a change in binding pose, and results in structural changes in both SIRT7 and the nucleosome. These structures reveal the basis of lysine specificity, allowing us to engineer SIRT7 towards enhanced H3K18ac selectivity, and provides a basis for small molecule modulator development. | |||||||||||||||
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構造の表示
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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 | ![]() | 168.2 MB | ![]() | |
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ヘッダ (付随情報) | ![]() ![]() | 29.6 KB 29.6 KB | 表示 表示 | ![]() |
FSC (解像度算出) | ![]() | 11.9 KB | 表示 | ![]() |
画像 | ![]() | 125.6 KB | ||
Filedesc metadata | ![]() | 8 KB | ||
その他 | ![]() ![]() | 165.3 MB 165.3 MB | ||
アーカイブディレクトリ | ![]() ![]() | HTTPS FTP |
-検証レポート
文書・要旨 | ![]() | 967.1 KB | 表示 | ![]() |
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文書・詳細版 | ![]() | 966.7 KB | 表示 | |
XML形式データ | ![]() | 20.3 KB | 表示 | |
CIF形式データ | ![]() | 26.1 KB | 表示 | |
アーカイブディレクトリ | ![]() ![]() | HTTPS FTP |
-関連構造データ
関連構造データ | ![]() 9gmrMC ![]() 9gmkC M: このマップから作成された原子モデル C: 同じ文献を引用 ( |
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類似構造データ | 類似検索 - 機能・相同性 ![]() |
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リンク
EMDBのページ | ![]() ![]() |
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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 | ![]() | ||||||||||||||||||||||||||||||||||||
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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: 0.83 Å | ||||||||||||||||||||||||||||||||||||
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対称性 | 空間群: 1 | ||||||||||||||||||||||||||||||||||||
詳細 | EMDB XML:
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-添付データ
-ハーフマップ: #2
ファイル | emd_51453_half_map_1.map | ||||||||||||
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密度ヒストグラム |
-ハーフマップ: #1
ファイル | emd_51453_half_map_2.map | ||||||||||||
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投影像・断面図 |
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密度ヒストグラム |
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試料の構成要素
+全体 : K36 structure
+超分子 #1: K36 structure
+分子 #1: Histone H3.2
+分子 #2: Histone H4
+分子 #3: Histone H2A type 2-A
+分子 #4: Histone H2B type 1-J
+分子 #7: NAD-dependent protein deacetylase sirtuin-7
+分子 #5: DNA (149-MER)
+分子 #6: DNA (149-MER)
+分子 #8: [[(2~{R},3~{a}~{R},5~{R},6~{R},6~{a}~{R})-2-(methylamino)-6-oxida...
+分子 #9: 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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![]() | 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 | 1 mg/mL |
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緩衝液 | pH: 8 |
凍結 | 凍結剤: ETHANE / チャンバー内湿度: 100 % / 装置: FEI VITROBOT MARK IV |
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電子顕微鏡法
顕微鏡 | TFS KRIOS |
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特殊光学系 | エネルギーフィルター - 名称: TFS Selectris X |
撮影 | フィルム・検出器のモデル: FEI FALCON IV (4k x 4k) 平均電子線量: 50.0 e/Å2 |
電子線 | 加速電圧: 300 kV / 電子線源: ![]() |
電子光学系 | C2レンズ絞り径: 100.0 µm / 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): 2.5 µm / 最小 デフォーカス(公称値): 1.2 µm |
試料ステージ | 試料ホルダーモデル: FEI TITAN KRIOS AUTOGRID HOLDER ホルダー冷却材: NITROGEN |
実験機器 | ![]() モデル: Titan Krios / 画像提供: FEI Company |
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画像解析
-原子モデル構築 1
精密化 | 空間: REAL / プロトコル: AB INITIO MODEL |
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得られたモデル | ![]() PDB-9gmr: |