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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: PDB / ID: 9eil | |||||||||||||||
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タイトル | SIRT6 bound to an H3K27Ac nucleosome | |||||||||||||||
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![]() | GENE REGULATION / nucleosome / SIRTUIN6 / histone deacylation / H3K27Ac | |||||||||||||||
機能・相同性 | ![]() ketone biosynthetic process / protein delipidation / NAD+-protein-lysine ADP-ribosyltransferase activity / regulation of lipid catabolic process / chromosome, subtelomeric region / positive regulation of protein localization to chromatin / NAD-dependent protein demyristoylase activity / NAD-dependent protein depalmitoylase activity / NAD+-protein-arginine ADP-ribosyltransferase activity / DNA damage sensor activity ...ketone biosynthetic process / protein delipidation / NAD+-protein-lysine ADP-ribosyltransferase activity / regulation of lipid catabolic process / chromosome, subtelomeric region / positive regulation of protein localization to chromatin / NAD-dependent protein demyristoylase activity / NAD-dependent protein depalmitoylase activity / NAD+-protein-arginine ADP-ribosyltransferase activity / DNA damage sensor activity / positive regulation of stem cell differentiation / NAD-dependent protein lysine deacetylase activity / positive regulation of chondrocyte proliferation / transposable element silencing / cardiac muscle cell differentiation / protein acetyllysine N-acetyltransferase / histone H3K14 deacetylase activity, NAD-dependent / histone H3K9 deacetylase activity, NAD-dependent / histone H4K16 deacetylase activity, NAD-dependent / histone H3K18 deacetylase activity, NAD-dependent / histone H3K56 deacetylase activity, NAD-dependent / histone H3K4 deacetylase activity, NAD-dependent / pericentric heterochromatin formation / histone deacetylase activity, NAD-dependent / protein deacetylation / negative regulation of D-glucose import / protein localization to site of double-strand break / positive regulation of blood vessel branching / histone H3K9 deacetylase activity, hydrolytic mechanism / negative regulation of glycolytic process / negative regulation of protein localization to chromatin / TORC2 complex binding / positive regulation of vascular endothelial cell proliferation / histone deacetylase regulator activity / regulation of double-strand break repair via homologous recombination / positive regulation of double-strand break repair / negative regulation of protein import into nucleus / lncRNA binding / regulation of protein secretion / DNA repair-dependent chromatin remodeling / negative regulation of gene expression, epigenetic / positive regulation of stem cell proliferation / positive regulation of stem cell population maintenance / NAD+-protein mono-ADP-ribosyltransferase activity / positive regulation of telomere maintenance / negative regulation of transcription elongation by RNA polymerase II / site of DNA damage / regulation of lipid metabolic process / NAD+ poly-ADP-ribosyltransferase activity / negative regulation of cellular senescence / 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+ binding / positive regulation of fat cell differentiation / negative regulation of gluconeogenesis / subtelomeric heterochromatin formation / regulation of protein localization to plasma membrane / pericentric heterochromatin / response to UV / nucleosome binding / enzyme regulator activity / 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 / regulation of circadian rhythm / protein destabilization / base-excision repair / positive regulation of insulin secretion / chromatin DNA binding / Pre-NOTCH Transcription and Translation / positive regulation of fibroblast proliferation / protein import into nucleus / transcription corepressor activity / structural constituent of chromatin / nucleosome / glucose homeostasis / heterochromatin formation / positive regulation of proteasomal ubiquitin-dependent protein catabolic process / double-strand break repair / nucleosome assembly / site of double-strand break / positive regulation of cold-induced thermogenesis / 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 | ![]() ![]() synthetic construct (人工物) | |||||||||||||||
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: 3.2 Å | |||||||||||||||
![]() | Markert, J. / Wang, Z. / Cole, P. / Farnung, L. | |||||||||||||||
資金援助 | ![]()
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![]() | ![]() タイトル: Structural and enzymatic plasticity of SIRT6 deacylase activity. 著者: Zhipeng A Wang / Jonathan Markert / Samuel D Whedon / Maheeshi Yapa Abeywardana / Xinlei Sheng / Eunju Nam / Kwangwoon Lee / Maggie Chen / Amanda Waterbury / Yingming Zhao / Lucas Farnung / Philip A Cole / ![]() 要旨: Sirtuin 6 (SIRT6) is an NAD-dependent protein deacylase that targets lysine residues in histones in the cell nucleus, where it helps maintain genome stability and links metabolism to epigenetic ...Sirtuin 6 (SIRT6) is an NAD-dependent protein deacylase that targets lysine residues in histones in the cell nucleus, where it helps maintain genome stability and links metabolism to epigenetic control. Dysregulation of SIRT6 is believed to be associated with aging and cancer, making it of pharmacological interest. In this study, we use cryo-EM and enzymology to explore SIRT6 preference and adaptability toward different nucleosomal substrates. We have visualized a trapped complex of SIRT6 in the process of deacylating H3K27, demonstrating how SIRT6 undergoes conformational changes to remove differently positioned histone marks. Additional biochemical studies further reveal the plasticity of SIRT6, which accommodates various metabolism-linked modifications, such as lysine lactylation and β-hydroxybutyrylation. To further understand the basis for substrate selectivity of SIRT6, we explore the effects of an established G60A enzyme mutation, proximal H3 modifications, and small-molecule modulators. These findings highlight the versatility of SIRT6 and provide key mechanistic insights into its molecular recognition. | |||||||||||||||
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構造の表示
構造ビューア | 分子: ![]() ![]() |
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ダウンロードとリンク
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ダウンロード
PDBx/mmCIF形式 | ![]() | 373.1 KB | 表示 | ![]() |
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PDB形式 | ![]() | 283.9 KB | 表示 | ![]() |
PDBx/mmJSON形式 | ![]() | ツリー表示 | ![]() | |
その他 | ![]() |
-検証レポート
文書・要旨 | ![]() | 1.5 MB | 表示 | ![]() |
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文書・詳細版 | ![]() | 1.5 MB | 表示 | |
XML形式データ | ![]() | 45.1 KB | 表示 | |
CIF形式データ | ![]() | 70.1 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 | ![]() 48086MC M: このデータのモデリングに利用したマップデータ 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
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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 AEBFCGDHK
#1: タンパク質 | 分子量: 15271.863 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: 11263.231 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: 13978.241 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: 13524.752 Da / 分子数: 2 / 由来タイプ: 組換発現 由来: (組換発現) ![]() 発現宿主: ![]() ![]() #7: タンパク質 | | 分子量: 39152.863 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: 57400.559 Da / 分子数: 1 / 由来タイプ: 合成 / 由来: (合成) synthetic construct (人工物) |
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#6: DNA鎖 | 分子量: 56831.191 Da / 分子数: 1 / 由来タイプ: 合成 / 由来: (合成) synthetic construct (人工物) |
-非ポリマー , 2種, 2分子 


#8: 化合物 | ChemComp-ZSL / [( |
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#9: 化合物 | ChemComp-ZN / |
-詳細
研究の焦点であるリガンドがあるか | Y |
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Has protein modification | Y |
-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
構成要素 | 名称: SIRT6 bound to H3K27Ac / タイプ: COMPLEX / Entity ID: #1-#7 / 由来: MULTIPLE SOURCES |
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分子量 | 実験値: NO |
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 |
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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顕微鏡 | モデル: TFS KRIOS |
電子銃 | 電子線源: ![]() |
電子レンズ | モード: BRIGHT FIELD / 最大 デフォーカス(公称値): 1700 nm / 最小 デフォーカス(公称値): 700 nm |
撮影 | 電子線照射量: 50.45 e/Å2 フィルム・検出器のモデル: GATAN K3 BIOQUANTUM (6k x 4k) |
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解析
EMソフトウェア | 名称: PHENIX / カテゴリ: モデル精密化 | ||||||||||||||||||||||||
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CTF補正 | タイプ: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||
3次元再構成 | 解像度: 3.2 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 124274 / 対称性のタイプ: POINT | ||||||||||||||||||||||||
原子モデル構築 | プロトコル: RIGID BODY FIT / 空間: REAL | ||||||||||||||||||||||||
拘束条件 |
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