+データを開く
-基本情報
登録情報 | データベース: EMDB / ID: EMD-35107 | |||||||||
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タイトル | The cryo-EM structure of human Bact-I complex | |||||||||
マップデータ | ||||||||||
試料 |
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キーワード | spliceosome / Bact-I complex / RNA splicing / PRP2 / activation / SPLICING | |||||||||
機能・相同性 | 機能・相同性情報 RES complex / negative regulation of chemokine-mediated signaling pathway / snoRNA splicing / 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 ...RES complex / negative regulation of chemokine-mediated signaling pathway / snoRNA splicing / 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 / B-WICH complex / regulation of vitamin D receptor signaling pathway / histone pre-mRNA 3'end processing complex / cis assembly of pre-catalytic spliceosome / SLBP independent Processing of Histone Pre-mRNAs / SLBP Dependent Processing of Replication-Dependent Histone Pre-mRNAs / miRNA processing / protein methylation / splicing factor binding / spliceosome conformational change to release U4 (or U4atac) and U1 (or U11) / U12-type spliceosomal complex / methylosome / nuclear retinoic acid receptor binding / 7-methylguanosine cap hypermethylation / positive regulation of androgen receptor activity / Prp19 complex / poly(A) binding / U1 snRNP binding / pICln-Sm protein complex / mRNA 3'-end processing / blastocyst formation / sno(s)RNA-containing ribonucleoprotein complex / snRNP binding / U2-type catalytic step 1 spliceosome / RNA splicing, via transesterification reactions / small nuclear ribonucleoprotein complex / pre-mRNA binding / regulation of mRNA splicing, via spliceosome / C2H2 zinc finger domain binding / SMN-Sm protein complex / telomerase RNA binding / spliceosomal tri-snRNP complex / telomerase holoenzyme complex / U2-type spliceosomal complex / U2-type precatalytic spliceosome / positive regulation by host of viral transcription / mRNA cis splicing, via spliceosome / P granule / positive regulation of vitamin D receptor signaling pathway / transcription regulator inhibitor activity / commitment complex / U2-type prespliceosome assembly / nuclear vitamin D receptor binding / Transport of Mature mRNA derived from an Intron-Containing Transcript / U2-type catalytic step 2 spliceosome / Notch binding / Regulation of gene expression in late stage (branching morphogenesis) pancreatic bud precursor cells / U4 snRNP / positive regulation of mRNA splicing, via spliceosome / RUNX3 regulates NOTCH signaling / U2 snRNP / RHOBTB1 GTPase cycle / SAGA complex / NOTCH4 Intracellular Domain Regulates Transcription / Basigin interactions / RNA Polymerase II Transcription Termination / U1 snRNP / positive regulation of transcription by RNA polymerase III / pattern recognition receptor activity / NOTCH3 Intracellular Domain Regulates Transcription / ubiquitin-ubiquitin ligase activity / positive regulation of neurogenesis / WD40-repeat domain binding / U2-type prespliceosome / nuclear androgen receptor binding / precatalytic spliceosome / K63-linked polyubiquitin modification-dependent protein binding / cyclosporin A binding / positive regulation of transcription by RNA polymerase I / Notch-HLH transcription pathway / positive regulation of transforming growth factor beta receptor signaling pathway / Formation of paraxial mesoderm / mRNA Splicing - Minor Pathway / spliceosomal complex assembly / SMAD binding / regulation of RNA splicing / mRNA 3'-splice site recognition / protein peptidyl-prolyl isomerization / blastocyst development / protein localization to nucleus / spliceosomal tri-snRNP complex assembly / intrinsic apoptotic signaling pathway in response to DNA damage by p53 class mediator / U5 snRNA binding / U5 snRNP / transcription-coupled nucleotide-excision repair / RHOBTB2 GTPase cycle / positive regulation of G1/S transition of mitotic cell cycle / positive regulation of viral genome replication 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: 3.0 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
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_35107.map.gz | 398.9 MB | EMDBマップデータ形式 | |
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ヘッダ (付随情報) | emd-35107-v30.xml emd-35107.xml | 81.5 KB 81.5 KB | 表示 表示 | EMDBヘッダ |
画像 | emd_35107.png | 98.4 KB | ||
Filedesc metadata | emd-35107.cif.gz | 24.7 KB | ||
その他 | emd_35107_half_map_1.map.gz emd_35107_half_map_2.map.gz | 391.1 MB 391.1 MB | ||
アーカイブディレクトリ | http://ftp.pdbj.org/pub/emdb/structures/EMD-35107 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-35107 | HTTPS FTP |
-検証レポート
文書・要旨 | emd_35107_validation.pdf.gz | 926.1 KB | 表示 | EMDB検証レポート |
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文書・詳細版 | emd_35107_full_validation.pdf.gz | 925.7 KB | 表示 | |
XML形式データ | emd_35107_validation.xml.gz | 18 KB | 表示 | |
CIF形式データ | emd_35107_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-35107 ftp://ftp.pdbj.org/pub/emdb/validation_reports/EMD-35107 | HTTPS FTP |
-関連構造データ
関連構造データ | 8i0rMC 8i0pC 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 (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
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_35107.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 | ||||||||||||||||||||||||||||||||||||
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: #2
ファイル | emd_35107_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_35107_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 : The human Bact-I complex
+超分子 #1: The human Bact-I complex
+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: RING finger protein 113A
+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: Pre-mRNA-splicing factor ATP-dependent RNA helicase DHX16
+分子 #19: Pleiotropic regulator 1
+分子 #20: Serine/arginine repetitive matrix protein 2
+分子 #21: Pre-mRNA-splicing factor CWC22 homolog
+分子 #22: Unknown polymer
+分子 #23: Smad nuclear-interacting protein 1
+分子 #24: RNA-binding motif protein, X-linked 2
+分子 #25: BUD13 homolog
+分子 #26: Splicing factor 3B subunit 1
+分子 #27: Splicing factor 3B subunit 3
+分子 #28: U2 small nuclear ribonucleoprotein B''
+分子 #29: Splicing factor 3A subunit 3
+分子 #30: Splicing factor 3A subunit 1
+分子 #31: Splicing factor 3B subunit 2
+分子 #32: Splicing factor 3B subunit 4
+分子 #33: Splicing factor 3B subunit 6
+分子 #34: PHD finger-like domain-containing protein 5A
+分子 #35: Splicing factor 3B subunit 5
+分子 #36: RING-type E3 ubiquitin-protein ligase PPIL2
+分子 #37: Serine/arginine repetitive matrix protein 1
+分子 #38: Peptidyl-prolyl cis-trans isomerase E
+分子 #39: Splicing factor 3A subunit 2
+分子 #40: U2 small nuclear ribonucleoprotein A'
+分子 #41: Small nuclear ribonucleoprotein Sm D2
+分子 #42: Small nuclear ribonucleoprotein F
+分子 #43: Small nuclear ribonucleoprotein-associated proteins B and B'
+分子 #44: Small nuclear ribonucleoprotein Sm D3
+分子 #45: Small nuclear ribonucleoprotein G
+分子 #46: Small nuclear ribonucleoprotein E
+分子 #47: Small nuclear ribonucleoprotein Sm D1
+分子 #48: Peptidyl-prolyl cis-trans isomerase CWC27 homolog
+分子 #2: U5 snRNA
+分子 #6: U6 snRNA
+分子 #7: pre-mRNA
+分子 #8: U2 snRNA
+分子 #49: INOSITOL HEXAKISPHOSPHATE
+分子 #50: GUANOSINE-5'-TRIPHOSPHATE
+分子 #51: MAGNESIUM ION
+分子 #52: 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 |
-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 % |
-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 |
-画像解析
初期モデル | モデルのタイプ: INSILICO MODEL |
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最終 再構成 | 解像度のタイプ: BY AUTHOR / 解像度: 3.0 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 使用した粒子像数: 136665 |
初期 角度割当 | タイプ: MAXIMUM LIKELIHOOD |
最終 角度割当 | タイプ: MAXIMUM LIKELIHOOD |