+データを開く
-基本情報
登録情報 | データベース: EMDB / ID: EMD-34431 | |||||||||||||||
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タイトル | Cryo-EM structure of BAP1-ASXL1 bound to chromatosome | |||||||||||||||
マップデータ | ||||||||||||||||
試料 |
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機能・相同性 | 機能・相同性情報 thrombocyte differentiation / nucleate erythrocyte differentiation / negative regulation of peroxisome proliferator activated receptor signaling pathway / PR-DUB complex / leukocyte proliferation / platelet morphogenesis / histone H2A deubiquitinase activity / positive regulation of retinoic acid receptor signaling pathway / macrophage homeostasis / lung saccule development ...thrombocyte differentiation / nucleate erythrocyte differentiation / negative regulation of peroxisome proliferator activated receptor signaling pathway / PR-DUB complex / leukocyte proliferation / platelet morphogenesis / histone H2A deubiquitinase activity / positive regulation of retinoic acid receptor signaling pathway / macrophage homeostasis / lung saccule development / podocyte development / neutrophil differentiation / regulation of kidney size / myeloid cell apoptotic process / hematopoietic stem cell homeostasis / monoubiquitinated protein deubiquitination / common myeloid progenitor cell proliferation / protein K48-linked deubiquitination / tissue homeostasis / negative regulation of DNA recombination / nuclear retinoic acid receptor binding / Apoptosis induced DNA fragmentation / hypothalamus gonadotrophin-releasing hormone neuron development / peroxisome proliferator activated receptor binding / chromosome condensation / bone marrow development / female meiosis I / nucleosomal DNA binding / positive regulation of protein monoubiquitination / mitochondrion transport along microtubule / positive regulation of protein targeting to mitochondrion / fat pad development / Formation of Senescence-Associated Heterochromatin Foci (SAHF) / negative regulation of fat cell differentiation / female gonad development / seminiferous tubule development / protein deubiquitination / male meiosis I / erythrocyte maturation / regulation of cytokine production involved in inflammatory response / positive regulation of intrinsic apoptotic signaling pathway by p53 class mediator / 造血 / homeostasis of number of cells / response to inorganic substance / negative regulation of megakaryocyte differentiation / protein localization to CENP-A containing chromatin / ヘテロクロマチン / Chromatin modifying enzymes / Replacement of protamines by nucleosomes in the male pronucleus / CENP-A containing nucleosome / epigenetic regulation of gene expression / energy homeostasis / regulation of neuron apoptotic process / Packaging Of Telomere Ends / heart morphogenesis / response to retinoic acid / regulation of proteasomal protein catabolic process / Recognition and association of DNA glycosylase with site containing an affected purine / Cleavage of the damaged purine / Maturation of protein E / Maturation of protein E / ER Quality Control Compartment (ERQC) / Deposition of new CENPA-containing nucleosomes at the centromere / Myoclonic epilepsy of Lafora / FLT3 signaling by CBL mutants / Prevention of phagosomal-lysosomal fusion / IRAK2 mediated activation of TAK1 complex / Alpha-protein kinase 1 signaling pathway / グリコーゲン合成 / IRAK1 recruits IKK complex / IRAK1 recruits IKK complex upon TLR7/8 or 9 stimulation / Membrane binding and targetting of GAG proteins / Constitutive Signaling by NOTCH1 HD Domain Mutants / Endosomal Sorting Complex Required For Transport (ESCRT) / NOTCH2 Activation and Transmission of Signal to the Nucleus / IRAK2 mediated activation of TAK1 complex upon TLR7/8 or 9 stimulation / PTK6 Regulates RTKs and Their Effectors AKT1 and DOK1 / Negative regulation of FLT3 / Recognition and association of DNA glycosylase with site containing an affected pyrimidine / Cleavage of the damaged pyrimidine / Regulation of FZD by ubiquitination / TICAM1,TRAF6-dependent induction of TAK1 complex / TICAM1-dependent activation of IRF3/IRF7 / APC/C:Cdc20 mediated degradation of Cyclin B / Inhibition of DNA recombination at telomere / Meiotic synapsis / p75NTR recruits signalling complexes / Downregulation of ERBB4 signaling / TRAF6 mediated IRF7 activation in TLR7/8 or 9 signaling / APC-Cdc20 mediated degradation of Nek2A / PINK1-PRKN Mediated Mitophagy / TRAF6-mediated induction of TAK1 complex within TLR4 complex / telomere organization / Pexophagy / InlA-mediated entry of Listeria monocytogenes into host cells / Regulation of innate immune responses to cytosolic DNA / VLDLR internalisation and degradation / Downregulation of ERBB2:ERBB3 signaling / NRIF signals cell death from the nucleus / Activated NOTCH1 Transmits Signal to the Nucleus 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: 3.0 Å | |||||||||||||||
データ登録者 | Ge W / Yu C / Xu RM | |||||||||||||||
資金援助 | 中国, 4件
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引用 | ジャーナル: Nature / 年: 2023 タイトル: Basis of the H2AK119 specificity of the Polycomb repressive deubiquitinase. 著者: Weiran Ge / Cong Yu / Jingjing Li / Zhenyu Yu / Xiaorong Li / Yan Zhang / Chao-Pei Liu / Yingfeng Li / Changlin Tian / Xinzheng Zhang / Guohong Li / Bing Zhu / Rui-Ming Xu / 要旨: Repression of gene expression by protein complexes of the Polycomb group is a fundamental mechanism that governs embryonic development and cell-type specification. The Polycomb repressive ...Repression of gene expression by protein complexes of the Polycomb group is a fundamental mechanism that governs embryonic development and cell-type specification. The Polycomb repressive deubiquitinase (PR-DUB) complex removes the ubiquitin moiety from monoubiquitinated histone H2A K119 (H2AK119ub1) on the nucleosome, counteracting the ubiquitin E3 ligase activity of Polycomb repressive complex 1 (PRC1) to facilitate the correct silencing of genes by Polycomb proteins and safeguard active genes from inadvertent silencing by PRC1 (refs. ). The intricate biological function of PR-DUB requires accurate targeting of H2AK119ub1, but PR-DUB can deubiquitinate monoubiquitinated free histones and peptide substrates indiscriminately; the basis for its exquisite nucleosome-dependent substrate specificity therefore remains unclear. Here we report the cryo-electron microscopy structure of human PR-DUB, composed of BAP1 and ASXL1, in complex with the chromatosome. We find that ASXL1 directs the binding of the positively charged C-terminal extension of BAP1 to nucleosomal DNA and histones H3-H4 near the dyad, an addition to its role in forming the ubiquitin-binding cleft. Furthermore, a conserved loop segment of the catalytic domain of BAP1 is situated near the H2A-H2B acidic patch. This distinct nucleosome-binding mode displaces the C-terminal tail of H2A from the nucleosome surface, and endows PR-DUB with the specificity for H2AK119ub1. | |||||||||||||||
履歴 |
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-構造の表示
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_34431.map.gz | 79.4 MB | EMDBマップデータ形式 | |
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ヘッダ (付随情報) | emd-34431-v30.xml emd-34431.xml | 28 KB 28 KB | 表示 表示 | EMDBヘッダ |
FSC (解像度算出) | emd_34431_fsc.xml | 11.4 KB | 表示 | FSCデータファイル |
画像 | emd_34431.png | 90.1 KB | ||
マスクデータ | emd_34431_msk_1.map | 166.4 MB | マスクマップ | |
その他 | emd_34431_half_map_1.map.gz emd_34431_half_map_2.map.gz | 154.7 MB 154.7 MB | ||
アーカイブディレクトリ | http://ftp.pdbj.org/pub/emdb/structures/EMD-34431 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-34431 | HTTPS FTP |
-関連構造データ
関連構造データ | 8h1tMC C: 同じ文献を引用 (文献) M: このマップから作成された原子モデル |
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類似構造データ | 類似検索 - 機能・相同性F&H 検索 |
-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 |
-マップ
ファイル | ダウンロード / ファイル: emd_34431.map.gz / 形式: CCP4 / 大きさ: 166.4 MB / タイプ: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) | ||||||||||||||||||||
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ボクセルのサイズ | X=Y=Z: 1 Å | ||||||||||||||||||||
密度 |
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対称性 | 空間群: 1 | ||||||||||||||||||||
詳細 | EMDB XML:
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-添付データ
-マスク #1
ファイル | emd_34431_msk_1.map | ||||||||||||
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投影像・断面図 |
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密度ヒストグラム |
-ハーフマップ: #2
ファイル | emd_34431_half_map_1.map | ||||||||||||
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投影像・断面図 |
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密度ヒストグラム |
-ハーフマップ: #1
ファイル | emd_34431_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 |
-試料の構成要素
+全体 : Cryo-EM structure of BAP1-ASXL1 bound to chromatosome
+超分子 #1: Cryo-EM structure of BAP1-ASXL1 bound to chromatosome
+分子 #1: Histone H3.1
+分子 #2: Histone H4
+分子 #3: Histone H2A type 1-D
+分子 #4: Histone H2B type 2-E
+分子 #7: Histone H1.4
+分子 #8: Ubiquitin carboxyl-terminal hydrolase BAP1
+分子 #9: Ubiquitin
+分子 #10: Polycomb group protein ASXL1
+分子 #5: DNA (187-MER)
+分子 #6: DNA (187-MER)
-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 |
-試料調製
緩衝液 | pH: 8 |
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グリッド | モデル: Quantifoil R2/1 / 材質: GOLD / メッシュ: 300 / 前処理 - タイプ: GLOW DISCHARGE / 前処理 - 時間: 60 sec. / 前処理 - 雰囲気: OTHER |
凍結 | 凍結剤: ETHANE / チャンバー内湿度: 100 % / チャンバー内温度: 284 K |
-電子顕微鏡法
顕微鏡 | FEI TALOS ARCTICA |
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電子線 | 加速電圧: 200 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 FIELDBright-field microscopy / Cs: 2.7 mm / 最大 デフォーカス(公称値): 2.0 µm / 最小 デフォーカス(公称値): 1.5 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 |
撮影 | フィルム・検出器のモデル: GATAN K2 SUMMIT (4k x 4k) 検出モード: SUPER-RESOLUTION / 平均電子線量: 50.0 e/Å2 |
実験機器 | モデル: Talos Arctica / 画像提供: FEI Company |
-画像解析
-原子モデル構築 1
精密化 | 空間: REAL |
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得られたモデル | PDB-8h1t: |