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データを開く
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基本情報
| 登録情報 | ![]() | |||||||||||||||||||||
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| タイトル | CryoEM structure of transcribing RNA polymerase II elongation complex in post-catalysis state | |||||||||||||||||||||
マップデータ | Density map of CryoEM structure of transcribing RNA polymerase II elongation complex in post-catalysis state | |||||||||||||||||||||
試料 |
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キーワード | CryoEM / RNA Polymerase / Transcription | |||||||||||||||||||||
| 機能・相同性 | 機能・相同性情報RPB4-RPB7 complex / nuclear-transcribed mRNA catabolic process, deadenylation-dependent decay / RNA Polymerase I Transcription Initiation / Processing of Capped Intron-Containing Pre-mRNA / RNA Polymerase III Transcription Initiation From Type 2 Promoter / RNA Pol II CTD phosphorylation and interaction with CE / Formation of the Early Elongation Complex / mRNA Capping / Formation of TC-NER Pre-Incision Complex / RNA polymerase II transcribes snRNA genes ...RPB4-RPB7 complex / nuclear-transcribed mRNA catabolic process, deadenylation-dependent decay / RNA Polymerase I Transcription Initiation / Processing of Capped Intron-Containing Pre-mRNA / RNA Polymerase III Transcription Initiation From Type 2 Promoter / RNA Pol II CTD phosphorylation and interaction with CE / Formation of the Early Elongation Complex / mRNA Capping / Formation of TC-NER Pre-Incision Complex / RNA polymerase II transcribes snRNA genes / Estrogen-dependent gene expression / RNA Polymerase I Promoter Escape / TP53 Regulates Transcription of DNA Repair Genes / RNA Polymerase II Promoter Escape / RNA Polymerase II Transcription Pre-Initiation And Promoter Opening / RNA Polymerase II Transcription Initiation / RNA Polymerase II Transcription Initiation And Promoter Clearance / RNA Polymerase II Pre-transcription Events / RNA-templated transcription / positive regulation of nuclear-transcribed mRNA poly(A) tail shortening / termination of RNA polymerase II transcription / Gap-filling DNA repair synthesis and ligation in TC-NER / termination of RNA polymerase I transcription / Dual incision in TC-NER / transcription by RNA polymerase III / maintenance of transcriptional fidelity during transcription elongation by RNA polymerase II / nucleolar large rRNA transcription by RNA polymerase I / transcription initiation at RNA polymerase I promoter / positive regulation of translational initiation / nuclear-transcribed mRNA catabolic process / termination of RNA polymerase III transcription / transcription initiation at RNA polymerase III promoter / RNA polymerase I complex / RNA polymerase III complex / RNA polymerase II, core complex / tRNA transcription by RNA polymerase III / transcription by RNA polymerase I / transcription elongation by RNA polymerase I / translesion synthesis / transcription-coupled nucleotide-excision repair / translation initiation factor binding / DNA-templated transcription initiation / transcription initiation at RNA polymerase II promoter / P-body / transcription elongation by RNA polymerase II / mRNA transcription by RNA polymerase II / ribonucleoside binding / mRNA processing / DNA-directed RNA polymerase / cytoplasmic stress granule / DNA-directed RNA polymerase activity / transcription by RNA polymerase II / peroxisome / single-stranded DNA binding / ribosome biogenesis / nucleic acid binding / protein dimerization activity / single-stranded RNA binding / nucleotide binding / mRNA binding / nucleolus / mitochondrion / DNA binding / nucleoplasm / zinc ion binding / metal ion binding / nucleus / cytoplasm 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: 2.33 Å | |||||||||||||||||||||
データ登録者 | Li Q / Yi G / Zhang P / Wang D | |||||||||||||||||||||
| 資金援助 | 英国, 米国, 6件
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引用 | ジャーナル: Mol Cell / 年: 2026タイトル: Sub-2 Å cryo-EM structures of transcribing RNA polymerase II reveal critical roles of water molecules in catalysis. 著者: Qingrong Li / Gangshun Yi / Yue Wu / Sophy Xu / Jenny Chong / Xuhui Huang / Peijun Zhang / Dong Wang / ![]() 要旨: RNA polymerase II (RNA Pol II) is central to gene expression, but its catalytic mechanism remains elusive due to the absence of high-resolution structural data. The role of water molecules in RNA Pol ...RNA polymerase II (RNA Pol II) is central to gene expression, but its catalytic mechanism remains elusive due to the absence of high-resolution structural data. The role of water molecules in RNA Pol II catalysis is unknown. Here, we present 3 high-resolution cryo-electron microscopy structures of active Saccharomyces cerevisiae RNA Pol II elongation complexes in distinct catalytic states: two pre-catalysis states at 1.96 Å and 2.26 Å resolution and a post-catalysis state at 2.33 Å resolution. Each structure contains over 700-1,350 ordered water molecules, many located at functionally critical positions. Comparative analysis shows that these waters play essential roles in proton-transfer steps during RNA Pol II catalysis, facilitating substrate recognition and trigger-loop folding during nucleotide addition. Strikingly, these waters are conserved between prokaryotic and eukaryotic transcription machineries (see Mueller and Darst). These findings provide unprecedented mechanistic insights into RNA Pol II catalysis and reveal vital and evolutionarily conserved roles of water molecules in transcription. | |||||||||||||||||||||
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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 | emd_54374.map.gz | 266.8 MB | EMDBマップデータ形式 | |
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| ヘッダ (付随情報) | emd-54374-v30.xml emd-54374.xml | 41.3 KB 41.3 KB | 表示 表示 | EMDBヘッダ |
| FSC (解像度算出) | emd_54374_fsc.xml | 13.8 KB | 表示 | FSCデータファイル |
| 画像 | emd_54374.png | 115 KB | ||
| Filedesc metadata | emd-54374.cif.gz | 10.4 KB | ||
| その他 | emd_54374_half_map_1.map.gz emd_54374_half_map_2.map.gz | 262.4 MB 262.4 MB | ||
| アーカイブディレクトリ | http://ftp.pdbj.org/pub/emdb/structures/EMD-54374 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-54374 | HTTPS FTP |
-関連構造データ
| 関連構造データ | ![]() 9rybMC ![]() 9qebC ![]() 9sv6C C: 同じ文献を引用 ( 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 |
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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 |
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マップ
| ファイル | ダウンロード / ファイル: emd_54374.map.gz / 形式: CCP4 / 大きさ: 282.6 MB / タイプ: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) | ||||||||||||||||||||||||||||||||||||
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| 注釈 | Density map of CryoEM structure of transcribing RNA polymerase II elongation complex in post-catalysis state | ||||||||||||||||||||||||||||||||||||
| 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: 0.825 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
-ハーフマップ: Half map A of CryoEM structure of transcribing...
| ファイル | emd_54374_half_map_1.map | ||||||||||||
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| 注釈 | Half map A of CryoEM structure of transcribing RNA polymerase II elongation complex in post-catalysis state | ||||||||||||
| 投影像・断面図 |
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| 密度ヒストグラム |
-ハーフマップ: Half map B of CryoEM structure of transcribing...
| ファイル | emd_54374_half_map_2.map | ||||||||||||
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| 注釈 | Half map B of CryoEM structure of transcribing RNA polymerase II elongation complex in post-catalysis state | ||||||||||||
| 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 : Yeast RNA polymerase II elongation complex
+超分子 #1: Yeast RNA polymerase II elongation complex
+分子 #1: DNA-directed RNA polymerase II subunit RPB1
+分子 #2: DNA-directed RNA polymerase II subunit RPB2
+分子 #3: DNA-directed RNA polymerase II subunit RPB3
+分子 #4: DNA-directed RNA polymerase II subunit RPB4
+分子 #5: DNA-directed RNA polymerases I, II, and III subunit RPABC1
+分子 #6: DNA-directed RNA polymerases I, II, and III subunit RPABC2
+分子 #7: DNA-directed RNA polymerase II subunit RPB7
+分子 #8: DNA-directed RNA polymerases I, II, and III subunit RPABC3
+分子 #9: DNA-directed RNA polymerase II subunit RPB9
+分子 #10: DNA-directed RNA polymerases I, II, and III subunit RPABC5
+分子 #11: DNA-directed RNA polymerase II subunit RPB11
+分子 #12: DNA-directed RNA polymerases I, II, and III subunit RPABC4
+分子 #13: DNA (74-mer)
+分子 #15: DNA (74-MER)
+分子 #14: RNA (5'-R(*AP*UP*CP*GP*AP*GP*AP*GP*GP*AP*UP*GP*GP*GP*AP*GP*AP*AP*...
+分子 #16: MAGNESIUM ION
+分子 #17: ZINC ION
+分子 #18: POTASSIUM ION
+分子 #19: DIPHOSPHATE
+分子 #20: water
-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 |
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試料調製
| 緩衝液 | pH: 7.5 |
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| グリッド | モデル: Quantifoil R2/1 / 材質: COPPER |
| 凍結 | 凍結剤: ETHANE |
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電子顕微鏡法
| 顕微鏡 | TFS KRIOS |
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| 撮影 | フィルム・検出器のモデル: GATAN K3 BIOQUANTUM (6k 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: FIELD EMISSION GUN |
| 電子光学系 | 照射モード: FLOOD BEAM / 撮影モード: BRIGHT FIELD / 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): 0.5 µm |
| 実験機器 | ![]() モデル: Titan Krios / 画像提供: FEI Company |
ムービー
コントローラー
万見について




キーワード
データ登録者
英国,
米国, 6件
引用




















Z (Sec.)
Y (Row.)
X (Col.)






































解析
FIELD EMISSION GUN


