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基本情報
登録情報 | データベース: PDB / ID: 8of4 | ||||||
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タイトル | Nucleosome Bound human SIRT6 (Composite) | ||||||
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![]() | GENE REGULATION / Transferase / Deacetylase / Histone H3 deacetylation | ||||||
機能・相同性 | ![]() NAD-dependent histone H3K56 deacetylase activity / NAD-dependent histone H3K18 deacetylase activity / NAD-dependent histone H3K9 deacetylase activity / protein delipidation / ketone biosynthetic process / regulation of lipid catabolic process / NAD+- protein-lysine ADP-ribosyltransferase activity / chromosome, subtelomeric region / NAD-dependent protein demyristoylase activity / NAD-dependent protein depalmitoylase activity ...NAD-dependent histone H3K56 deacetylase activity / NAD-dependent histone H3K18 deacetylase activity / NAD-dependent histone H3K9 deacetylase activity / protein delipidation / ketone biosynthetic process / regulation of lipid catabolic process / NAD+- protein-lysine ADP-ribosyltransferase activity / chromosome, subtelomeric region / NAD-dependent protein demyristoylase activity / NAD-dependent protein depalmitoylase activity / NAD+-protein-arginine ADP-ribosyltransferase activity / positive regulation of protein localization to chromatin / DNA damage sensor activity / positive regulation of stem cell differentiation / positive regulation of blood vessel branching / NAD-dependent protein lysine deacetylase activity / retrotransposon silencing / protein acetyllysine N-acetyltransferase / cardiac muscle cell differentiation / positive regulation of chondrocyte proliferation / pericentric heterochromatin formation / positive regulation of telomere maintenance / protein deacetylation / negative regulation of glucose import / protein localization to site of double-strand break / NAD-dependent histone deacetylase activity / TORC2 complex binding / lncRNA binding / negative regulation of glycolytic process / negative regulation of protein localization to chromatin / positive regulation of double-strand break repair / DNA repair-dependent chromatin remodeling / positive regulation of vascular endothelial cell proliferation / negative regulation of protein import into nucleus / negative regulation of gene expression, epigenetic / regulation of double-strand break repair via homologous recombination / positive regulation of stem cell population maintenance / positive regulation of stem cell proliferation / regulation of protein secretion / negative regulation of transcription elongation by RNA polymerase II / NAD+-protein ADP-ribosyltransferase activity / negative regulation of cellular senescence / site of DNA damage / regulation of lipid metabolic process / 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 / NAD+ ADP-ribosyltransferase activity / NAD+ binding / subtelomeric heterochromatin formation / positive regulation of fat cell differentiation / regulation of protein localization to plasma membrane / pericentric heterochromatin / negative regulation of gluconeogenesis / response to UV / nucleosome binding / 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 / nucleotidyltransferase activity / positive regulation of protein export from nucleus / determination of adult lifespan / circadian regulation of gene expression / protein destabilization / base-excision repair / regulation of circadian rhythm / positive regulation of insulin secretion / chromatin DNA binding / Pre-NOTCH Transcription and Translation / structural constituent of chromatin / transcription corepressor activity / nucleosome / positive regulation of fibroblast proliferation / double-strand break repair / nucleosome assembly / positive regulation of proteasomal ubiquitin-dependent protein catabolic process / glucose homeostasis / positive regulation of cold-induced thermogenesis / site of double-strand break / Processing of DNA double-strand break ends / damaged DNA binding / chromatin remodeling / protein heterodimerization activity / negative regulation of cell population proliferation / intracellular membrane-bounded organelle / chromatin binding / chromatin / negative regulation of transcription by RNA polymerase II / endoplasmic reticulum / protein homodimerization activity / DNA binding / zinc ion binding / nucleoplasm / nucleus 類似検索 - 分子機能 | ||||||
生物種 | ![]() ![]() | ||||||
手法 | 電子顕微鏡法 / 単粒子再構成法 / クライオ電子顕微鏡法 / 解像度: 2.94 Å | ||||||
![]() | Smirnova, E. / Bignon, E. / Schultz, P. / Papai, G. / Ben-Shem, A. | ||||||
資金援助 | ![]()
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![]() | ![]() タイトル: Binding to nucleosome poises human SIRT6 for histone H3 deacetylation. 著者: Ekaterina Smirnova / Emmanuelle Bignon / Patrick Schultz / Gabor Papai / Adam Ben Shem / ![]() 要旨: Sirtuin 6 (SIRT6) is an NAD-dependent histone H3 deacetylase that is prominently found associated with chromatin, attenuates transcriptionally active promoters and regulates DNA repair, metabolic ...Sirtuin 6 (SIRT6) is an NAD-dependent histone H3 deacetylase that is prominently found associated with chromatin, attenuates transcriptionally active promoters and regulates DNA repair, metabolic homeostasis and lifespan. Unlike other sirtuins, it has low affinity to free histone tails but demonstrates strong binding to nucleosomes. It is poorly understood how SIRT6 docking on nucleosomes stimulates its histone deacetylation activity. Here, we present the structure of human SIRT6 bound to a nucleosome determined by cryogenic electron microscopy. The zinc finger domain of SIRT6 associates tightly with the acidic patch of the nucleosome through multiple arginine anchors. The Rossmann fold domain binds to the terminus of the looser DNA half of the nucleosome, detaching two turns of the DNA from the histone octamer and placing the NAD binding pocket close to the DNA exit site. This domain shows flexibility with respect to the fixed zinc finger and moves with, but also relative to, the unwrapped DNA terminus. We apply molecular dynamics simulations of the histone tails in the nucleosome to show that in this mode of interaction, the active site of SIRT6 is perfectly poised to catalyze deacetylation of the H3 histone tail and that the partial unwrapping of the DNA allows even lysines close to the H3 core to reach the enzyme. #1: ![]() タイトル: Binding to nucleosome poises SIRT6 for histone H3 de-acetylation 著者: Smirnova, E. / Bignon, E. / Schultz, P. / Papai, G. / Ben-Shem, A. | ||||||
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構造の表示
構造ビューア | 分子: ![]() ![]() |
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PDBx/mmCIF形式 | ![]() | 358 KB | 表示 | ![]() |
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PDB形式 | ![]() | 265.8 KB | 表示 | ![]() |
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-検証レポート
文書・要旨 | ![]() | 842.6 KB | 表示 | ![]() |
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文書・詳細版 | ![]() | 910.1 KB | 表示 | |
XML形式データ | ![]() | 39.5 KB | 表示 | |
CIF形式データ | ![]() | 63.6 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 | ![]() 16845MC C: 同じ文献を引用 ( M: このデータのモデリングに利用したマップデータ |
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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
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集合体
登録構造単位 | ![]()
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要素
-タンパク質 , 5種, 9分子 AEBFCGDHL
#1: タンパク質 | 分子量: 15421.101 Da / 分子数: 2 / 由来タイプ: 組換発現 由来: (組換発現) ![]() 発現宿主: ![]() ![]() #2: タンパク質 | 分子量: 11394.426 Da / 分子数: 2 / 由来タイプ: 組換発現 由来: (組換発現) ![]() 発現宿主: ![]() ![]() #3: タンパク質 | 分子量: 14093.436 Da / 分子数: 2 / 由来タイプ: 組換発現 由来: (組換発現) ![]() 発現宿主: ![]() ![]() #4: タンパク質 | 分子量: 13979.291 Da / 分子数: 2 / 由来タイプ: 組換発現 由来: (組換発現) ![]() 遺伝子: LOC108704303 / 発現宿主: ![]() ![]() #7: タンパク質 | | 分子量: 39180.914 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() ![]() 参照: UniProt: Q8N6T7, 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, protein acetyllysine N-acetyltransferase, 転移酵素; ...参照: UniProt: Q8N6T7, 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, protein acetyllysine N-acetyltransferase, 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 |
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-DNA鎖 , 2種, 2分子 IJ
#5: DNA鎖 | 分子量: 44520.383 Da / 分子数: 1 / 由来タイプ: 組換発現 由来: (組換発現) ![]() 発現宿主: ![]() ![]() |
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#6: DNA鎖 | 分子量: 44991.660 Da / 分子数: 1 / 由来タイプ: 組換発現 由来: (組換発現) ![]() 発現宿主: ![]() ![]() |
-非ポリマー , 1種, 1分子 ![](data/chem/img/ZN.gif)
#8: 化合物 | ChemComp-ZN / |
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-詳細
研究の焦点であるリガンドがあるか | Y |
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-実験情報
-実験
実験 | 手法: 電子顕微鏡法 |
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EM実験 | 試料の集合状態: PARTICLE / 3次元再構成法: 単粒子再構成法 |
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試料調製
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緩衝液 | pH: 7.5 | ||||||||||||||||||
試料 | 包埋: NO / シャドウイング: NO / 染色: NO / 凍結: YES | ||||||||||||||||||
試料支持 | グリッドの材料: COPPER/RHODIUM / グリッドのサイズ: 300 divisions/in. / グリッドのタイプ: Quantifoil R3.5/1 | ||||||||||||||||||
急速凍結 | 凍結剤: ETHANE |
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電子顕微鏡撮影
実験機器 | ![]() モデル: Titan Krios / 画像提供: FEI Company | ||||||||||||
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EM imaging | 加速電圧: 300 kV / C2レンズ絞り径: 50 µm / 凍結剤: NITROGEN / 電子線源:
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解析
EMソフトウェア |
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CTF補正 | タイプ: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||||||||||||||||||||||||||
粒子像の選択 | 選択した粒子像数: 2033169 | ||||||||||||||||||||||||||||||||||||||||||||||||
3次元再構成 | 解像度: 2.94 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 439796 / アルゴリズム: BACK PROJECTION / 対称性のタイプ: POINT | ||||||||||||||||||||||||||||||||||||||||||||||||
原子モデル構築 |
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