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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 | The cryo-EM structure of human pre-Bact complex | |||||||||
マップデータ | ||||||||||
試料 |
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キーワード | spliceosome / pre-Bact complex / RNA splicing / PRP2 / activation / SPLICING | |||||||||
| 機能・相同性 | 機能・相同性情報RES complex / U11/U12 snRNP / regulation of retinoic acid receptor signaling pathway / post-mRNA release spliceosomal complex / U2 snRNP binding / U7 snRNA binding / histone pre-mRNA DCP binding / 3'-5' RNA helicase activity / U7 snRNP / generation of catalytic spliceosome for first transesterification step ...RES complex / U11/U12 snRNP / regulation of retinoic acid receptor signaling pathway / post-mRNA release spliceosomal complex / U2 snRNP binding / U7 snRNA binding / histone pre-mRNA DCP binding / 3'-5' RNA helicase activity / U7 snRNP / generation of catalytic spliceosome for first transesterification step / histone pre-mRNA 3'end processing complex / cis assembly of pre-catalytic spliceosome / regulation of vitamin D receptor signaling pathway / SLBP independent Processing of Histone Pre-mRNAs / SLBP Dependent Processing of Replication-Dependent Histone Pre-mRNAs / spliceosome conformational change to release U4 (or U4atac) and U1 (or U11) / B-WICH complex / miRNA processing / nuclear retinoic acid receptor binding / protein methylation / U12-type spliceosomal complex / poly(A) binding / 7-methylguanosine cap hypermethylation / U1 snRNP binding / methylosome / mRNA 3'-end processing / RNA splicing, via transesterification reactions / pICln-Sm protein complex / U2-type catalytic step 1 spliceosome / pre-mRNA binding / regulation of mRNA splicing, via spliceosome / snRNP binding / positive regulation of mRNA splicing, via spliceosome / blastocyst formation / sno(s)RNA-containing ribonucleoprotein complex / splicing factor binding / SMN-Sm protein complex / small nuclear ribonucleoprotein complex / spliceosomal tri-snRNP complex / host-mediated activation of viral transcription / P granule / telomerase holoenzyme complex / U2-type precatalytic spliceosome / positive regulation of vitamin D receptor signaling pathway / commitment complex / mRNA cis splicing, via spliceosome / telomerase RNA binding / U2-type spliceosomal complex / nuclear vitamin D receptor binding / U2-type prespliceosome assembly / Notch binding / Transport of Mature mRNA derived from an Intron-Containing Transcript / U2-type catalytic step 2 spliceosome / Regulation of gene expression in late stage (branching morphogenesis) pancreatic bud precursor cells / RUNX3 regulates NOTCH signaling / positive regulation of neurogenesis / NOTCH4 Intracellular Domain Regulates Transcription / RHOBTB1 GTPase cycle / SAGA complex / RNA Polymerase II Transcription Termination / U2 snRNP / U1 snRNP / U4 snRNP / NOTCH3 Intracellular Domain Regulates Transcription / Basigin interactions / U2-type prespliceosome / positive regulation of transcription by RNA polymerase III / WD40-repeat domain binding / ubiquitin-ubiquitin ligase activity / K63-linked polyubiquitin modification-dependent protein binding / nuclear androgen receptor binding / cyclosporin A binding / precatalytic spliceosome / Notch-HLH transcription pathway / Formation of paraxial mesoderm / SMAD binding / positive regulation of transforming growth factor beta receptor signaling pathway / regulation of RNA splicing / spliceosomal complex assembly / mRNA Splicing - Minor Pathway / mRNA 3'-splice site recognition / positive regulation of transcription by RNA polymerase I / spliceosomal tri-snRNP complex assembly / Prp19 complex / blastocyst development / U5 snRNA binding / U5 snRNP / intrinsic apoptotic signaling pathway in response to DNA damage by p53 class mediator / protein localization to nucleus / U2 snRNA binding / positive regulation of G1/S transition of mitotic cell cycle / U6 snRNA binding / pre-mRNA intronic binding / spliceosomal snRNP assembly / positive regulation of viral genome replication / RHOBTB2 GTPase cycle / RNA processing / U1 snRNA binding / Cajal body / regulation of DNA repair 類似検索 - 分子機能 | |||||||||
| 生物種 | Homo sapiens (ヒト) / unidentified adenovirus (ウイルス) | |||||||||
| 手法 | 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 | Zhan X / Lu Y / Shi Y | |||||||||
| 資金援助 | 中国, 1件
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引用 | ジャーナル: Nat Commun / 年: 2024タイトル: Molecular basis for the activation of human spliceosome. 著者: Xiechao Zhan / Yichen Lu / Yigong Shi / ![]() 要旨: The spliceosome executes pre-mRNA splicing through four sequential stages: assembly, activation, catalysis, and disassembly. Activation of the spliceosome, namely remodeling of the pre-catalytic ...The spliceosome executes pre-mRNA splicing through four sequential stages: assembly, activation, catalysis, and disassembly. Activation of the spliceosome, namely remodeling of the pre-catalytic spliceosome (B complex) into the activated spliceosome (B complex) and the catalytically activated spliceosome (B complex), involves major flux of protein components and structural rearrangements. Relying on a splicing inhibitor, we have captured six intermediate states between the B and B complexes: pre-B, B-I, B-II, B-III, B-IV, and post-B. Their cryo-EM structures, together with an improved structure of the catalytic step I spliceosome (C complex), reveal how the catalytic center matures around the internal stem loop of U6 snRNA, how the branch site approaches 5'-splice site, how the RNA helicase PRP2 rearranges to bind pre-mRNA, and how U2 snRNP undergoes remarkable movement to facilitate activation. We identify a previously unrecognized key role of PRP2 in spliceosome activation. Our study recapitulates a molecular choreography of the human spliceosome during its catalytic activation. | |||||||||
| 履歴 |
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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_35105.map.gz | 398.6 MB | EMDBマップデータ形式 | |
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| ヘッダ (付随情報) | emd-35105-v30.xml emd-35105.xml | 79.8 KB 79.8 KB | 表示 表示 | EMDBヘッダ |
| 画像 | emd_35105.png | 86.4 KB | ||
| Filedesc metadata | emd-35105.cif.gz | 22.6 KB | ||
| その他 | emd_35105_half_map_1.map.gz emd_35105_half_map_2.map.gz | 391.6 MB 391.6 MB | ||
| アーカイブディレクトリ | http://ftp.pdbj.org/pub/emdb/structures/EMD-35105 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-35105 | HTTPS FTP |
-検証レポート
| 文書・要旨 | emd_35105_validation.pdf.gz | 1 MB | 表示 | EMDB検証レポート |
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| 文書・詳細版 | emd_35105_full_validation.pdf.gz | 1 MB | 表示 | |
| XML形式データ | emd_35105_validation.xml.gz | 17.9 KB | 表示 | |
| CIF形式データ | emd_35105_validation.cif.gz | 21.5 KB | 表示 | |
| アーカイブディレクトリ | https://ftp.pdbj.org/pub/emdb/validation_reports/EMD-35105 ftp://ftp.pdbj.org/pub/emdb/validation_reports/EMD-35105 | HTTPS FTP |
-関連構造データ
| 関連構造データ | ![]() 8i0pMC ![]() 8i0rC ![]() 8i0sC ![]() 8i0tC ![]() 8i0uC ![]() 8i0vC ![]() 8i0wC M: このマップから作成された原子モデル 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 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_35105.map.gz / 形式: CCP4 / 大きさ: 421.9 MB / タイプ: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) | ||||||||||||||||||||||||||||||||||||
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| 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: 1.077 Å | ||||||||||||||||||||||||||||||||||||
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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: #2
| ファイル | emd_35105_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_35105_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 |
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試料の構成要素
+全体 : The human pre-Bact complex
+超分子 #1: The human pre-Bact complex
+超分子 #2: human pre-Bact complex
+超分子 #3: pre-mRNA
+分子 #1: Pre-mRNA-processing-splicing factor 8
+分子 #3: 116 kDa U5 small nuclear ribonucleoprotein component
+分子 #4: U5 small nuclear ribonucleoprotein 200 kDa helicase
+分子 #5: U5 small nuclear ribonucleoprotein 40 kDa protein
+分子 #9: Pre-mRNA-splicing factor SYF1
+分子 #10: Crooked neck-like protein 1
+分子 #11: DNA/RNA-binding protein KIN17
+分子 #12: Cell division cycle 5-like protein
+分子 #13: Protein BUD31 homolog
+分子 #14: Pre-mRNA-splicing factor RBM22
+分子 #15: Spliceosome-associated protein CWC15 homolog
+分子 #16: RNA helicase aquarius
+分子 #17: SNW domain-containing protein 1
+分子 #18: Pleiotropic regulator 1
+分子 #19: Smad nuclear-interacting protein 1
+分子 #20: RNA-binding motif protein, X-linked 2
+分子 #21: BUD13 homolog
+分子 #22: Splicing factor 3B subunit 1
+分子 #23: Splicing factor 3B subunit 3
+分子 #24: U2 small nuclear ribonucleoprotein A'
+分子 #25: U2 small nuclear ribonucleoprotein B''
+分子 #26: Small nuclear ribonucleoprotein Sm D2
+分子 #27: Small nuclear ribonucleoprotein F
+分子 #28: Small nuclear ribonucleoprotein-associated proteins B and B'
+分子 #29: Small nuclear ribonucleoprotein Sm D3
+分子 #30: Small nuclear ribonucleoprotein G
+分子 #31: Small nuclear ribonucleoprotein E
+分子 #32: Small nuclear ribonucleoprotein Sm D1
+分子 #33: Splicing factor 3A subunit 3
+分子 #34: Splicing factor 3A subunit 1
+分子 #35: Splicing factor 3B subunit 2
+分子 #36: Splicing factor 3B subunit 4
+分子 #37: Splicing factor 3B subunit 6
+分子 #38: PHD finger-like domain-containing protein 5A
+分子 #39: Splicing factor 3B subunit 5
+分子 #40: RING-type E3 ubiquitin-protein ligase PPIL2
+分子 #41: Serine/arginine repetitive matrix protein 1
+分子 #42: Peptidyl-prolyl cis-trans isomerase E
+分子 #43: Splicing factor 3A subunit 2
+分子 #44: Unknown polymer
+分子 #2: U5 snRNA
+分子 #6: U6 snRNA
+分子 #7: pre-mRNA
+分子 #8: U2 snRNA
+分子 #45: GUANOSINE-5'-TRIPHOSPHATE
+分子 #46: MAGNESIUM ION
+分子 #47: ZINC ION
-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: 7.9 |
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| 凍結 | 凍結剤: ETHANE / チャンバー内湿度: 100 % |
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電子顕微鏡法
| 顕微鏡 | FEI TITAN KRIOS |
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| 撮影 | フィルム・検出器のモデル: GATAN K3 (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): 2.0 µm 最小 デフォーカス(公称値): 1.4000000000000001 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
Homo sapiens (ヒト)
unidentified adenovirus (ウイルス)
データ登録者
中国, 1件
引用














































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





































解析
FIELD EMISSION GUN
