登録情報 データベース : EMDB / ID : EMD-19942 ダウンロードとリンクタイトル Structure of a B-state intermediate committed to discard (Bd-II state) マップデータ 詳細 試料複合体 : Bd-II complexタンパク質・ペプチド : x 36種RNA : x 4種リガンド : x 5種 詳細 キーワード Helicase / G-patch protein / discard pathway / SPLICING機能・相同性 機能・相同性情報分子機能 ドメイン・相同性 構成要素
nucleolar peripheral inclusion body / mRNA Splicing - Major Pathway / Formation of TC-NER Pre-Incision Complex / Dual incision in TC-NER / Gap-filling DNA repair synthesis and ligation in TC-NER / spliceosomal complex disassembly / spliceosomal conformational changes to generate catalytic conformation / U2-type post-mRNA release spliceosomal complex / siRNA-mediated pericentric heterochromatin formation / post-mRNA release spliceosomal complex ... nucleolar peripheral inclusion body / mRNA Splicing - Major Pathway / Formation of TC-NER Pre-Incision Complex / Dual incision in TC-NER / Gap-filling DNA repair synthesis and ligation in TC-NER / spliceosomal complex disassembly / spliceosomal conformational changes to generate catalytic conformation / U2-type post-mRNA release spliceosomal complex / siRNA-mediated pericentric heterochromatin formation / post-mRNA release spliceosomal complex / generation of catalytic spliceosome for first transesterification step / pICln-Sm protein complex / U2-type catalytic step 1 spliceosome / pre-mRNA binding / snRNP binding / spindle pole body / SMN-Sm protein complex / regulatory ncRNA-mediated gene silencing / spliceosomal tri-snRNP complex / U2-type spliceosomal complex / commitment complex / mRNA cis splicing, via spliceosome / U2-type catalytic step 2 spliceosome / U4 snRNP / U2 snRNP / U1 snRNP / U2-type prespliceosome / precatalytic spliceosome / spliceosomal complex assembly / mRNA 5'-splice site recognition / pericentric heterochromatin / spliceosomal tri-snRNP complex assembly / Prp19 complex / protein K63-linked ubiquitination / U5 snRNA binding / U5 snRNP / U2 snRNA binding / U6 snRNA binding / pre-mRNA intronic binding / spliceosomal snRNP assembly / U1 snRNA binding / U4/U6 x U5 tri-snRNP complex / catalytic step 2 spliceosome / RNA splicing / peptidylprolyl isomerase / peptidyl-prolyl cis-trans isomerase activity / spliceosomal complex / mRNA splicing, via spliceosome / RING-type E3 ubiquitin transferase / spindle / metallopeptidase activity / ubiquitin-protein transferase activity / ubiquitin protein ligase activity / nuclear envelope / protein folding / protein-macromolecule adaptor activity / molecular adaptor activity / microtubule / cysteine-type deubiquitinase activity / RNA helicase activity / RNA helicase / DNA repair / mRNA binding / GTPase activity / GTP binding / ATP hydrolysis activity / DNA binding / RNA binding / zinc ion binding / ATP binding / nucleus / cytosol / cytoplasm 類似検索 - 分子機能 G patch domain-containing protein, N-terminal / Protein of unknown function (DUF1604) / Nuclear protein DGCR14/ESS-2 / Nuclear protein Es2 / GCF, C-terminal / GC-rich sequence DNA-binding factor-like protein / : / TFP11/STIP/Ntr1 / Nineteen complex-related protein 2 / Saf4/Yju2 protein ... G patch domain-containing protein, N-terminal / Protein of unknown function (DUF1604) / Nuclear protein DGCR14/ESS-2 / Nuclear protein Es2 / GCF, C-terminal / GC-rich sequence DNA-binding factor-like protein / : / TFP11/STIP/Ntr1 / Nineteen complex-related protein 2 / Saf4/Yju2 protein / Saf4/Yju2 protein / cwf21 / Slt11, RNA recognition motif / Pre-mRNA-splicing factor Cwc2, RNA recognition motif / Pre-mRNA-splicing factor SPF27 / Torus domain / Breast carcinoma amplified sequence 2 (BCAS2) / Torus domain / CWF11 family / Intron-binding protein aquarius, N-terminal / Intron-binding protein aquarius N-terminal / mRNA splicing factor SYF2 / SYF2 splicing factor / G-patch domain / : / : / mRNA splicing factor Cwf21 domain / cwf21 domain / G-patch domain profile. / G-patch domain / glycine rich nucleic binding domain / Pre-mRNA-processing factor 17 / Pre-mRNA-splicing factor 19 / Pre-mRNA-processing factor 19 / : / Prp19/Pso4-like / : / Pre-mRNA-splicing factor SYF1 middle HAT repeat / Cyclophilin-type peptidyl-prolyl cis-trans isomerase, cyclophilin A-like / : / : / STL11, N-terminal / : / Pre-mRNA-splicing factor Syf1/CRNKL1 C-terminal HAT repeat / SKI-interacting protein SKIP, SNW domain / SKI-interacting protein, SKIP / SKIP/SNW domain / : / Pre-mRNA-splicing factor Syf1/CNRKL1 N-terminal HAT repeat / Pre-mRNA-splicing factor Cwf15/Cwc15 / Cwf15/Cwc15 cell cycle control protein / WD repeat Prp46/PLRG1-like / Pre-mRNA-splicing factor Cwc2/Slt11 / Anaphase-promoting complex subunit 4, WD40 domain / : / G10 protein / Pre-mRNA-splicing factor BUD31 / Pre-mRNA splicing factor component Cdc5p/Cef1, C-terminal / : / : / pre-mRNA splicing factor component / DNA2/NAM7-like helicase / : / Initiation factor eIF-4 gamma, MA3 / MA3 domain / MI domain profile. / Domain in DAP-5, eIF4G, MA-3 and other proteins. / MIF4G domain / Myb-like DNA-binding domain / Anaphase-promoting complex subunit 4 WD40 domain / Middle domain of eukaryotic initiation factor 4G (eIF4G) / MIF4G-like, type 3 / Small nuclear ribonucleoprotein D1 / U-box domain profile. / Zinc finger, CCCH-type superfamily / Modified RING finger domain / U-box domain / zinc finger / 116kDa U5 small nuclear ribonucleoprotein component, N-terminal / 116kDa U5 small nuclear ribonucleoprotein component, C-terminal / Snu114, GTP-binding domain / 116 kDa U5 small nuclear ribonucleoprotein component N-terminus / Pre-mRNA-splicing factor Syf1-like / : / Helicase associated domain (HA2), ratchet-like / DEAD-box helicase, OB fold / Oligonucleotide/oligosaccharide-binding (OB)-fold / Helicase associated domain (HA2), winged-helix / Helicase-associated domain / Helicase associated domain (HA2) Add an annotation / Small nuclear ribonucleoprotein Sm D3 / Small nuclear ribonucleoprotein Sm D2 / Small nuclear ribonucleoprotein E / Small nuclear ribonucleoprotein G / Small nuclear ribonucleoprotein F / Sm-like protein Lsm7/SmG / Like-Sm (LSM) domain containing protein, LSm4/SmD1/SmD3 / Sm-like protein Lsm6/SmF / Myb-type HTH DNA-binding domain profile. / Zinc finger, CCCH-type 類似検索 - ドメイン・相同性 Pre-mRNA-splicing factor prp5 / Uncharacterized protein C17A2.08c / Pre-mRNA-processing factor 19 / Small nuclear ribonucleoprotein Sm D2 / Pre-mRNA-splicing factor cwf21 / Pre-mRNA-splicing factor spp42 / Small nuclear ribonucleoprotein Sm D1 / Pre-mRNA-processing factor 17 / Pre-mRNA-splicing factor syf2 / Small nuclear ribonucleoprotein F ... Pre-mRNA-splicing factor prp5 / Uncharacterized protein C17A2.08c / Pre-mRNA-processing factor 19 / Small nuclear ribonucleoprotein Sm D2 / Pre-mRNA-splicing factor cwf21 / Pre-mRNA-splicing factor spp42 / Small nuclear ribonucleoprotein Sm D1 / Pre-mRNA-processing factor 17 / Pre-mRNA-splicing factor syf2 / Small nuclear ribonucleoprotein F / Stress response protein bis1 / Pre-mRNA-splicing factor cwf5 / Protein saf4 / Pre-mRNA-splicing factor cwf14 / Small nuclear ribonucleoprotein G / Pre-mRNA-splicing factor cwf10 / Pre-mRNA-splicing factor cwf11 / Pre-mRNA-splicing factor cwf17 / Pre-mRNA-splicing factor cdc5 / Pre-mRNA-splicing factor cwf15 / Peptidyl-prolyl cis-trans isomerase ppi1 / Pre-mRNA-splicing factor cwf2 / Pre-mRNA-splicing factor cwf4 / Pre-mRNA-processing protein 45 / Small nuclear ribonucleoprotein-associated protein B / Putative pre-mRNA-splicing factor ATP-dependent RNA helicase C20H4.09 / Uncharacterized protein C20H4.06c / Pre-mRNA-splicing factor cwf22 / Pre-mRNA-splicing factor cwf3 / Pre-mRNA-splicing factor cwf7 / Small nuclear ribonucleoprotein E / G-patch domain-containing protein C1486.03 / Small nuclear ribonucleoprotein Sm D3 類似検索 - 構成要素生物種 Schizosaccharomyces pombe (分裂酵母)手法 単粒子再構成法 / クライオ電子顕微鏡法 / 解像度 : 3.1 Å 詳細 データ登録者Soni K / Wild K / Sinning I 資金援助 ドイツ, 2件 詳細 詳細を隠すOrganization Grant number 国 German Research Foundation (DFG) SI 586/6-1 ドイツ German Research Foundation (DFG) Project-ID 439669440, TP B03 ドイツ
引用ジャーナル : Nat Struct Mol Biol / 年 : 2025タイトル : Structures of aberrant spliceosome intermediates on their way to disassembly.著者 : Komal Soni / Attila Horvath / Olexandr Dybkov / Merlin Schwan / Sasanan Trakansuebkul / Dirk Flemming / Klemens Wild / Henning Urlaub / Tamás Fischer / Irmgard Sinning / 要旨 : Intron removal during pre-mRNA splicing is of extraordinary complexity and its disruption causes a vast number of genetic diseases in humans. While key steps of the canonical spliceosome cycle have ... Intron removal during pre-mRNA splicing is of extraordinary complexity and its disruption causes a vast number of genetic diseases in humans. While key steps of the canonical spliceosome cycle have been revealed by combined structure-function analyses, structural information on an aberrant spliceosome committed to premature disassembly is not available. Here, we report two cryo-electron microscopy structures of post-B spliceosome intermediates from Schizosaccharomyces pombe primed for disassembly. We identify the DEAH-box helicase-G-patch protein pair (Gih35-Gpl1, homologous to human DHX35-GPATCH1) and show how it maintains catalytic dormancy. In both structures, Gpl1 recognizes a remodeled active site introduced by an overstabilization of the U5 loop I interaction with the 5' exon leading to a single-nucleotide insertion at the 5' splice site. Remodeling is communicated to the spliceosome surface and the Ntr1 complex that mediates disassembly is recruited. Our data pave the way for a targeted analysis of splicing quality control. 履歴 登録 2024年3月26日 - ヘッダ(付随情報) 公開 2024年12月25日 - マップ公開 2024年12月25日 - 更新 2025年5月28日 - 現状 2025年5月28日 処理サイト : PDBe / 状態 : 公開
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