+データを開く
-基本情報
登録情報 | データベース: PDB / ID: 8fyh | |||||||||
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タイトル | G4 RNA-mediated PRC2 dimer | |||||||||
要素 |
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キーワード | GENE REGULATION / PRC2 / G-quadruplex RNA / RNP complex / chromatin modifier | |||||||||
機能・相同性 | 機能・相同性情報 hepatocyte homeostasis / regulation of kidney development / cellular response to trichostatin A / regulation of gliogenesis / negative regulation of striated muscle cell differentiation / [histone H3]-lysine27 N-trimethyltransferase / sex chromatin / CAF-1 complex / negative regulation of keratinocyte differentiation / histone H3K27 trimethyltransferase activity ...hepatocyte homeostasis / regulation of kidney development / cellular response to trichostatin A / regulation of gliogenesis / negative regulation of striated muscle cell differentiation / [histone H3]-lysine27 N-trimethyltransferase / sex chromatin / CAF-1 complex / negative regulation of keratinocyte differentiation / histone H3K27 trimethyltransferase activity / negative regulation of retinoic acid receptor signaling pathway / skeletal muscle satellite cell maintenance involved in skeletal muscle regeneration / response to tetrachloromethane / cerebellar cortex development / random inactivation of X chromosome / primary miRNA binding / regulatory ncRNA-mediated heterochromatin formation / histone H3K27 methyltransferase activity / facultative heterochromatin formation / positive regulation of cell cycle G1/S phase transition / NURF complex / NuRD complex / regulation of cell fate specification / negative regulation of stem cell population maintenance / DNA replication-dependent chromatin assembly / ESC/E(Z) complex / Transcription of E2F targets under negative control by p107 (RBL1) and p130 (RBL2) in complex with HDAC1 / regulation of stem cell differentiation / chromatin silencing complex / protein-lysine N-methyltransferase activity / RSC-type complex / negative regulation of stem cell differentiation / Transcription of E2F targets under negative control by DREAM complex / pronucleus / cardiac muscle hypertrophy in response to stress / Polo-like kinase mediated events / synaptic transmission, GABAergic / positive regulation of dendrite development / histone H3 methyltransferase activity / lncRNA binding / negative regulation of G1/S transition of mitotic cell cycle / spinal cord development / G1 to G0 transition / negative regulation of gene expression, epigenetic / G1/S-Specific Transcription / positive regulation of stem cell population maintenance / ATPase complex / histone methyltransferase activity / Sin3-type complex / negative regulation of transcription elongation by RNA polymerase II / Transcriptional Regulation by E2F6 / oligodendrocyte differentiation / RNA Polymerase I Transcription Initiation / histone deacetylase complex / negative regulation of cell differentiation / G0 and Early G1 / subtelomeric heterochromatin formation / negative regulation of cytokine production involved in inflammatory response / RNA polymerase II core promoter sequence-specific DNA binding / ribonucleoprotein complex binding / pericentric heterochromatin / Cyclin E associated events during G1/S transition / Transcriptional regulation of brown and beige adipocyte differentiation by EBF2 / positive regulation of epithelial to mesenchymal transition / Cyclin A:Cdk2-associated events at S phase entry / keratinocyte differentiation / Deposition of new CENPA-containing nucleosomes at the centromere / protein localization to chromatin / Regulation of TP53 Activity through Acetylation / enzyme activator activity / methylated histone binding / SUMOylation of chromatin organization proteins / B cell differentiation / positive regulation of GTPase activity / transcription corepressor binding / ERCC6 (CSB) and EHMT2 (G9a) positively regulate rRNA expression / negative regulation of cell migration / PRC2 methylates histones and DNA / Regulation of PTEN gene transcription / Regulation of endogenous retroelements by KRAB-ZFP proteins / Defective pyroptosis / hippocampus development / Regulation of endogenous retroelements by Piwi-interacting RNAs (piRNAs) / stem cell differentiation / HDACs deacetylate histones / promoter-specific chromatin binding / liver regeneration / transcription coregulator activity / negative regulation of transforming growth factor beta receptor signaling pathway / positive regulation of MAP kinase activity / brain development / regulation of circadian rhythm / protein modification process / positive regulation of protein serine/threonine kinase activity / chromatin DNA binding / heterochromatin formation / PKMTs methylate histone lysines / histone deacetylase binding / Activation of anterior HOX genes in hindbrain development during early embryogenesis / cellular response to hydrogen peroxide 類似検索 - 分子機能 | |||||||||
生物種 | Homo sapiens (ヒト) | |||||||||
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: 3.4 Å | |||||||||
データ登録者 | Song, J. / Kasinath, V. | |||||||||
資金援助 | 米国, 2件
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引用 | ジャーナル: Science / 年: 2023 タイトル: Structural basis for inactivation of PRC2 by G-quadruplex RNA. 著者: Jiarui Song / Anne R Gooding / Wayne O Hemphill / Brittney D Love / Anne Robertson / Liqi Yao / Leonard I Zon / Trista E North / Vignesh Kasinath / Thomas R Cech / 要旨: Polycomb repressive complex 2 (PRC2) silences genes through trimethylation of histone H3K27. PRC2 associates with numerous precursor messenger RNAs (pre-mRNAs) and long noncoding RNAs (lncRNAs) with ...Polycomb repressive complex 2 (PRC2) silences genes through trimethylation of histone H3K27. PRC2 associates with numerous precursor messenger RNAs (pre-mRNAs) and long noncoding RNAs (lncRNAs) with a binding preference for G-quadruplex RNA. In this work, we present a 3.3-Å-resolution cryo-electron microscopy structure of PRC2 bound to a G-quadruplex RNA. Notably, RNA mediates the dimerization of PRC2 by binding both protomers and inducing a protein interface composed of two copies of the catalytic subunit EZH2, thereby blocking nucleosome DNA interaction and histone H3 tail accessibility. Furthermore, an RNA-binding loop of EZH2 facilitates the handoff between RNA and DNA, another activity implicated in PRC2 regulation by RNA. We identified a gain-of-function mutation in this loop that activates PRC2 in zebrafish. Our results reveal mechanisms for RNA-mediated regulation of a chromatin-modifying enzyme. | |||||||||
履歴 |
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-構造の表示
構造ビューア | 分子: MolmilJmol/JSmol |
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-ダウンロードとリンク
-ダウンロード
PDBx/mmCIF形式 | 8fyh.cif.gz | 722.4 KB | 表示 | PDBx/mmCIF形式 |
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PDB形式 | pdb8fyh.ent.gz | 512.4 KB | 表示 | PDB形式 |
PDBx/mmJSON形式 | 8fyh.json.gz | ツリー表示 | PDBx/mmJSON形式 | |
その他 | その他のダウンロード |
-検証レポート
文書・要旨 | 8fyh_validation.pdf.gz | 1.3 MB | 表示 | wwPDB検証レポート |
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文書・詳細版 | 8fyh_full_validation.pdf.gz | 1.4 MB | 表示 | |
XML形式データ | 8fyh_validation.xml.gz | 103.4 KB | 表示 | |
CIF形式データ | 8fyh_validation.cif.gz | 161.5 KB | 表示 | |
アーカイブディレクトリ | https://data.pdbj.org/pub/pdb/validation_reports/fy/8fyh ftp://data.pdbj.org/pub/pdb/validation_reports/fy/8fyh | HTTPS FTP |
-関連構造データ
関連構造データ | 29578MC 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 (文献) |
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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
-集合体
登録構造単位 |
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1 |
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-要素
-Polycomb protein ... , 2種, 4分子 BHCI
#1: タンパク質 | 分子量: 83181.922 Da / 分子数: 2 / 由来タイプ: 組換発現 / 由来: (組換発現) Homo sapiens (ヒト) / 遺伝子: SUZ12, CHET9, JJAZ1, KIAA0160 / 細胞株 (発現宿主): BTI-TN5B1-4 / 発現宿主: Trichoplusia ni (イラクサキンウワバ) / 参照: UniProt: Q15022 #2: タンパク質 | 分子量: 50267.691 Da / 分子数: 2 / 由来タイプ: 組換発現 / 由来: (組換発現) Homo sapiens (ヒト) / 遺伝子: EED / 細胞株 (発現宿主): BTI-TN5B1-4 / 発現宿主: Trichoplusia ni (イラクサキンウワバ) / 参照: UniProt: O75530 |
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-タンパク質 , 4種, 8分子 DJAGEKFL
#3: タンパク質 | 分子量: 47709.527 Da / 分子数: 2 / 由来タイプ: 組換発現 / 由来: (組換発現) Homo sapiens (ヒト) / 遺伝子: RBBP4, RBAP48 / 細胞株 (発現宿主): BTI-TN5B1-4 / 発現宿主: Trichoplusia ni (イラクサキンウワバ) / 参照: UniProt: Q09028 #4: タンパク質 | 分子量: 86149.055 Da / 分子数: 2 / 由来タイプ: 組換発現 / 由来: (組換発現) Homo sapiens (ヒト) / 遺伝子: EZH2, KMT6 / 細胞株 (発現宿主): BTI-TN5B1-4 / 発現宿主: Trichoplusia ni (イラクサキンウワバ) 参照: UniProt: Q15910, [histone H3]-lysine27 N-trimethyltransferase #5: タンパク質 | 分子量: 138406.219 Da / 分子数: 2 / 由来タイプ: 組換発現 / 由来: (組換発現) Homo sapiens (ヒト) / 遺伝子: Jarid2 / 細胞株 (発現宿主): BTI-TN5B1-4 / 発現宿主: Trichoplusia ni (イラクサキンウワバ) / 参照: UniProt: A0A6I9KXB3 #6: タンパク質 | 分子量: 54535.496 Da / 分子数: 2 / 由来タイプ: 組換発現 / 由来: (組換発現) Homo sapiens (ヒト) / 遺伝子: AEBP2 / 細胞株 (発現宿主): BTI-TN5B1-4 / 発現宿主: Trichoplusia ni (イラクサキンウワバ) / 参照: UniProt: Q6ZN18 |
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-RNA鎖 / 非ポリマー , 2種, 15分子 M
#7: RNA鎖 | 分子量: 7955.823 Da / 分子数: 1 / 由来タイプ: 合成 / 由来: (合成) Homo sapiens (ヒト) |
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#8: 化合物 | ChemComp-ZN / |
-詳細
研究の焦点であるリガンドがあるか | N |
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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 |
-試料調製
構成要素 | 名称: G4 RNA-mediated dimer of polycomb repressive complex 2 タイプ: COMPLEX / Entity ID: #1-#7 / 由来: MULTIPLE SOURCES | ||||||||||||||||||||||||||||||
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分子量 | 値: 0.8 MDa / 実験値: YES | ||||||||||||||||||||||||||||||
由来(天然) | 生物種: Homo sapiens (ヒト) | ||||||||||||||||||||||||||||||
由来(組換発現) | 生物種: Trichoplusia ni (イラクサキンウワバ) / 株: BTI-TN5B1-4 | ||||||||||||||||||||||||||||||
緩衝液 | pH: 7.9 詳細: RNP complex buffer (25 mM HEPES pH 7.9, 50 mM KCl, 2 mM MgCl2, 10% glycerol, and 1mM TCEP) EM preparation buffer I (25 mM HEPES pH 7.9, 50 mM KCl, 2.5% glycerol, and 1mM TCEP) EM preparation ...詳細: RNP complex buffer (25 mM HEPES pH 7.9, 50 mM KCl, 2 mM MgCl2, 10% glycerol, and 1mM TCEP) EM preparation buffer I (25 mM HEPES pH 7.9, 50 mM KCl, 2.5% glycerol, and 1mM TCEP) EM preparation buffer II (25 mM HEPES pH 7.9, 50 mM KCl, 2.5% glycerol, 0.01%NP-40, and 1mM TCEP). | ||||||||||||||||||||||||||||||
緩衝液成分 |
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試料 | 包埋: NO / シャドウイング: NO / 染色: NO / 凍結: YES 詳細: We used streptavidin-affinity grid preparation method with biotin-labeled RNA at 100 nM concentration. PRC2 was applied in excess at 600 nM. | ||||||||||||||||||||||||||||||
試料支持 | グリッドの材料: GOLD / グリッドのサイズ: 300 divisions/in. / グリッドのタイプ: Quantifoil R2/1 | ||||||||||||||||||||||||||||||
急速凍結 | 装置: LEICA PLUNGER / 凍結剤: ETHANE / 湿度: 90 % / 凍結前の試料温度: 281 K / 詳細: 3s of single side blotting |
-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: FEI TITAN KRIOS |
電子銃 | 電子線源: FIELD EMISSION GUN / 加速電圧: 300 kV / 照射モード: FLOOD BEAM |
電子レンズ | モード: BRIGHT FIELD / 倍率(公称値): 81000 X / 最大 デフォーカス(公称値): 2000 nm / 最小 デフォーカス(公称値): 600 nm / Cs: 0.01 mm |
試料ホルダ | 凍結剤: NITROGEN 試料ホルダーモデル: FEI TITAN KRIOS AUTOGRID HOLDER |
撮影 | 電子線照射量: 60 e/Å2 / フィルム・検出器のモデル: GATAN K3 (6k x 4k) / 撮影したグリッド数: 1 / 実像数: 18632 / 詳細: 60 frames per movie |
電子光学装置 | エネルギーフィルタースリット幅: 20 eV |
-解析
ソフトウェア | 名称: PHENIX / バージョン: 1.20.1_4487: / 分類: 精密化 | ||||||||||||||||||||||||||||||||||||||||
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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: 3885383 | ||||||||||||||||||||||||||||||||||||||||
3次元再構成 | 解像度: 3.4 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 217196 / 対称性のタイプ: POINT |