登録情報 データベース : EMDB / ID : EMD-0686 構造の表示 ダウンロードとリンクタイトル Cryo-EM structure of the yeast B*-a2 complex at an average resolution of 3.2 angstrom マップデータ 詳細 試料複合体 : catalytically activated spliceosome B*-a2 complexタンパク質・ペプチド : x 27種RNA : x 4種リガンド : x 4種 詳細機能・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
post-spliceosomal complex / U2-type post-mRNA release spliceosomal complex / mRNA branch site recognition / cellular bud site selection / post-mRNA release spliceosomal complex / generation of catalytic spliceosome for first transesterification step / cis assembly of pre-catalytic spliceosome / splicing factor binding / U4/U6 snRNP / spliceosome conformational change to release U4 (or U4atac) and U1 (or U11) ... post-spliceosomal complex / U2-type post-mRNA release spliceosomal complex / mRNA branch site recognition / cellular bud site selection / post-mRNA release spliceosomal complex / generation of catalytic spliceosome for first transesterification step / cis assembly of pre-catalytic spliceosome / splicing factor binding / U4/U6 snRNP / spliceosome conformational change to release U4 (or U4atac) and U1 (or U11) / 7-methylguanosine cap hypermethylation / Prp19 complex / snRNP binding / pICln-Sm protein complex / small nuclear ribonucleoprotein complex / pre-mRNA binding / U2-type catalytic step 1 spliceosome / SMN-Sm protein complex / spliceosomal tri-snRNP complex / mRNA cis splicing, via spliceosome / U2-type spliceosomal complex / poly(U) RNA binding / commitment complex / U2-type prespliceosome assembly / U2-type catalytic step 2 spliceosome / U4 snRNP / U2 snRNP / U1 snRNP / U2-type prespliceosome / precatalytic spliceosome / Formation of TC-NER Pre-Incision Complex / generation of catalytic spliceosome for second transesterification step / spliceosomal complex assembly / Gap-filling DNA repair synthesis and ligation in TC-NER / DNA replication origin binding / mRNA 5'-splice site recognition / protein K63-linked ubiquitination / mRNA 3'-splice site recognition / Dual incision in TC-NER / DNA replication initiation / spliceosomal tri-snRNP complex assembly / U5 snRNA binding / U5 snRNP / U2 snRNA binding / U6 snRNA binding / spliceosomal snRNP assembly / positive regulation of cell cycle / pre-mRNA intronic binding / U1 snRNA binding / U4/U6 x U5 tri-snRNP complex / catalytic step 2 spliceosome / nuclear periphery / positive regulation of RNA splicing / spliceosomal complex / RING-type E3 ubiquitin transferase / mRNA splicing, via spliceosome / ubiquitin-protein transferase activity / metallopeptidase activity / ubiquitin protein ligase activity / DNA repair / chromatin binding / GTPase activity / mRNA binding / chromatin / GTP binding / mitochondrion / DNA binding / RNA binding / identical protein binding / nucleus / metal ion binding / cytoplasm / cytosol 類似検索 - 分子機能 Slt11, RNA recognition motif / cwf21 / Pre-mRNA-splicing factor Isy1 / Pre-mRNA-splicing factor Isy1 superfamily / Isy1-like splicing family / Pre-mRNA-splicing factor Cwc2, RNA recognition motif / Torus domain / Torus domain / mRNA splicing factor SYF2 / SYF2 splicing factor ... Slt11, RNA recognition motif / cwf21 / Pre-mRNA-splicing factor Isy1 / Pre-mRNA-splicing factor Isy1 superfamily / Isy1-like splicing family / Pre-mRNA-splicing factor Cwc2, RNA recognition motif / Torus domain / Torus domain / mRNA splicing factor SYF2 / SYF2 splicing factor / Helix hairpin bin domain superfamily / RNA recognition motif. (a.k.a. RRM, RBD, or RNP domain) / : / : / mRNA splicing factor Cwf21 domain / cwf21 domain / Pre-mRNA-processing factor 17 / Pre-mRNA-splicing factor 19 / Pre-mRNA-processing factor 19 / Prp19/Pso4-like / : / STL11, N-terminal / WD repeat Prp46/PLRG1-like / BUD31/G10-related, conserved site / : / : / G10 protein signature 1. / G10 protein signature 2. / SKI-interacting protein SKIP, SNW domain / SKI-interacting protein, SKIP / SKIP/SNW domain / Pre-mRNA-splicing factor Cwf15/Cwc15 / HAT (Half-A-TPR) repeat / Cwf15/Cwc15 cell cycle control protein / Pre-mRNA-splicing factor Cwc2/Slt11 / G10 protein / Pre-mRNA-splicing factor BUD31 / Pre-mRNA splicing factor component Cdc5p/Cef1, C-terminal / pre-mRNA splicing factor component / Initiation factor eIF-4 gamma, MA3 / MA3 domain / MI domain profile. / Domain in DAP-5, eIF4G, MA-3 and other proteins. / Middle domain of eukaryotic initiation factor 4G (eIF4G) / MIF4G-like, type 3 / U-box domain profile. / Modified RING finger domain / U2A'/phosphoprotein 32 family A, C-terminal / occurring C-terminal to leucine-rich repeats / U-box domain / Leucine-rich repeat / Pre-mRNA-splicing factor Syf1-like / Snu114, GTP-binding domain / 116kDa U5 small nuclear ribonucleoprotein component, N-terminal / 116kDa U5 small nuclear ribonucleoprotein component, C-terminal / 116 kDa U5 small nuclear ribonucleoprotein component N-terminus / : / 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 / Myb-type HTH DNA-binding domain profile. / Like-Sm (LSM) domain containing protein, LSm4/SmD1/SmD3 / Zinc finger, CCCH-type / Zinc finger C3H1-type profile. / Sm-like protein Lsm6/SmF / LSM domain / LSM domain, eukaryotic/archaea-type / snRNP Sm proteins / HAT (Half-A-TPR) repeat / HAT (Half-A-TPR) repeats / Myb domain / : / Sm domain profile. / Myb-like DNA-binding domain / LSM domain superfamily / Translation elongation factor EFG/EF2, domain IV / Elongation factor G, domain IV / Elongation factor G, domain IV / Elongation factor G C-terminus / Quinoprotein alcohol dehydrogenase-like superfamily / Elongation factor EFG, domain V-like / Elongation factor G C-terminus / EF-G domain III/V-like / SANT SWI3, ADA2, N-CoR and TFIIIB'' DNA-binding domains / SANT/Myb domain / PROCT domain / Prp8 RNase domain IV, fingers region / PROCT (NUC072) domain / PRO8NT domain / PROCN domain / Pre-mRNA-processing-splicing factor 8, U6-snRNA-binding / Pre-mRNA-processing-splicing factor 8, U5-snRNA-binding / RNA recognition motif, spliceosomal PrP8 / PRP8 domain IV core / Pre-mRNA-processing-splicing factor 8, U5-snRNA-binding domain superfamily / Prp8 RNase domain IV, palm region / PRO8NT (NUC069), PrP8 N-terminal domain 類似検索 - ドメイン・相同性 Pre-mRNA-splicing factor ISY1 / Pre-mRNA-splicing factor BUD31 / Pre-mRNA-processing protein 45 / Pre-mRNA-processing factor 19 / Pre-mRNA-splicing factor 8 / Pre-mRNA-splicing factor SNU114 / Pre-mRNA-splicing factor SLT11 / Small nuclear ribonucleoprotein-associated protein B / Small nuclear ribonucleoprotein G / U2 small nuclear ribonucleoprotein B'' ... Pre-mRNA-splicing factor ISY1 / Pre-mRNA-splicing factor BUD31 / Pre-mRNA-processing protein 45 / Pre-mRNA-processing factor 19 / Pre-mRNA-splicing factor 8 / Pre-mRNA-splicing factor SNU114 / Pre-mRNA-splicing factor SLT11 / Small nuclear ribonucleoprotein-associated protein B / Small nuclear ribonucleoprotein G / U2 small nuclear ribonucleoprotein B'' / Pre-mRNA-processing factor 17 / Small nuclear ribonucleoprotein Sm D3 / Pre-mRNA-splicing factor SYF2 / Pre-mRNA-splicing factor CWC22 / Small nuclear ribonucleoprotein F / Small nuclear ribonucleoprotein Sm D1 / Pre-mRNA-splicing factor CWC21 / Pre-mRNA-splicing factor CEF1 / Pre-mRNA-splicing factor CWC15 / Pre-mRNA-splicing factor SYF1 / Pre-mRNA-splicing factor SNT309 / Small nuclear ribonucleoprotein Sm D2 / U2 small nuclear ribonucleoprotein A' / Pre-mRNA-splicing factor CWC2 / Pre-mRNA-splicing factor CLF1 / Small nuclear ribonucleoprotein E / Pre-mRNA-splicing factor PRP46 類似検索 - 構成要素生物種 Saccharomyces cerevisiae S288c (パン酵母) / Baker's yeast (パン酵母)手法 単粒子再構成法 / クライオ電子顕微鏡法 / 解像度 : 3.2 Å 詳細 データ登録者Wan R / Bai R / Yan C / Lei J / Shi Y 資金援助 中国, 3件 詳細 詳細を隠すOrganization Grant number 国 National Natural Science Foundation of China 31430020 中国 Ministry of Science and Technology (China) 2016YFA0501100 中国 National Natural Science Foundation of China 31621092 中国
引用ジャーナル : Cell / 年 : 2019タイトル : Structures of the Catalytically Activated Yeast Spliceosome Reveal the Mechanism of Branching.著者 : Ruixue Wan / Rui Bai / Chuangye Yan / Jianlin Lei / Yigong Shi / 要旨 : Pre-mRNA splicing is executed by the spliceosome. Structural characterization of the catalytically activated complex (B) is pivotal for understanding the branching reaction. In this study, we ... Pre-mRNA splicing is executed by the spliceosome. Structural characterization of the catalytically activated complex (B) is pivotal for understanding the branching reaction. In this study, we assembled the B complexes on two different pre-mRNAs from Saccharomyces cerevisiae and determined the cryo-EM structures of four distinct B complexes at overall resolutions of 2.9-3.8 Å. The duplex between U2 small nuclear RNA (snRNA) and the branch point sequence (BPS) is discretely away from the 5'-splice site (5'SS) in the three B complexes that are devoid of the step I splicing factors Yju2 and Cwc25. Recruitment of Yju2 into the active site brings the U2/BPS duplex into the vicinity of 5'SS, with the BPS nucleophile positioned 4 Å away from the catalytic metal M2. This analysis reveals the functional mechanism of Yju2 and Cwc25 in branching. These structures on different pre-mRNAs reveal substrate-specific conformations of the spliceosome in a major functional state. 履歴 登録 2019年1月15日 - ヘッダ(付随情報) 公開 2019年4月10日 - マップ公開 2019年4月24日 - 更新 2020年10月14日 - 現状 2020年10月14日 処理サイト : PDBj / 状態 : 公開
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