登録情報 データベース : EMDB / ID : EMD-9524 構造の表示 ダウンロードとリンクタイトル Cryo-EM structure of the activated spliceosome (Bact complex) at 3.5 angstrom resolution マップデータCryo-EM map of Bact spliceosome at 3.5-angstrom resolution 詳細 試料複合体 : Bact spliceosomal complexタンパク質・ペプチド : x 38種RNA : x 5種リガンド : x 4種 詳細 キーワード spliceosome / RNA splicing / Bact / Catalytically activated / RNA BINDING PROTEIN-RNA complex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
maintenance of RNA location / mRNA branch site recognition / RNA polymerase II CTD heptapeptide repeat P3 isomerase activity / RNA polymerase II CTD heptapeptide repeat P6 isomerase activity / RES complex / U2-type post-mRNA release spliceosomal complex / cellular bud site selection / snoRNA splicing / post-mRNA release spliceosomal complex / generation of catalytic spliceosome for first transesterification step ... maintenance of RNA location / mRNA branch site recognition / RNA polymerase II CTD heptapeptide repeat P3 isomerase activity / RNA polymerase II CTD heptapeptide repeat P6 isomerase activity / RES complex / U2-type post-mRNA release spliceosomal complex / cellular bud site selection / snoRNA splicing / post-mRNA release spliceosomal complex / generation of catalytic spliceosome for first transesterification step / cis assembly of pre-catalytic spliceosome / spliceosome conformational change to release U4 (or U4atac) and U1 (or U11) / U4/U6 snRNP / 7-methylguanosine cap hypermethylation / ATP-dependent activity, acting on RNA / pICln-Sm protein complex / U2-type catalytic step 1 spliceosome / pre-mRNA binding / snRNP binding / small nuclear ribonucleoprotein complex / splicing factor binding / SMN-Sm protein complex / spliceosomal tri-snRNP complex / U2-type spliceosomal complex / commitment complex / mRNA cis splicing, via spliceosome / U2-type prespliceosome assembly / U2-type catalytic step 2 spliceosome / U4 snRNP / U2 snRNP / U1 snRNP / poly(U) RNA binding / U2-type prespliceosome / precatalytic spliceosome / generation of catalytic spliceosome for second transesterification step / Formation of TC-NER Pre-Incision Complex / spliceosomal complex assembly / mRNA 5'-splice site recognition / Gap-filling DNA repair synthesis and ligation in TC-NER / mRNA 3'-splice site recognition / DNA replication origin binding / spliceosomal tri-snRNP complex assembly / Dual incision in TC-NER / Prp19 complex / protein K63-linked ubiquitination / U5 snRNA binding / DNA replication initiation / U5 snRNP / U2 snRNA binding / U6 snRNA binding / pre-mRNA intronic binding / spliceosomal snRNP assembly / mRNA export from nucleus / U1 snRNA binding / U4/U6 x U5 tri-snRNP complex / positive regulation of cell cycle / catalytic step 2 spliceosome / nuclear periphery / positive regulation of RNA splicing / peptidylprolyl isomerase / spliceosomal complex / helicase activity / mRNA splicing, via spliceosome / RING-type E3 ubiquitin transferase / metallopeptidase activity / ubiquitin-protein transferase activity / ubiquitin protein ligase activity / protein folding / nucleic acid binding / RNA helicase activity / RNA helicase / response to xenobiotic stimulus / DNA repair / mRNA binding / GTPase activity / chromatin binding / chromatin / GTP binding / ATP hydrolysis activity / mitochondrion / DNA binding / RNA binding / zinc ion binding / ATP binding / identical protein binding / nucleus / cytosol / cytoplasm 類似検索 - 分子機能 Pre-mRNA-splicing factor CWC24-like / Ist3-like, RNA recognition motif / : / Bud13 / : / Pre-mRNA-splicing factor of RES complex / cwf21 / Slt11, RNA recognition motif / Pre-mRNA-splicing factor Cwc2, RNA recognition motif / : ... Pre-mRNA-splicing factor CWC24-like / Ist3-like, RNA recognition motif / : / Bud13 / : / Pre-mRNA-splicing factor of RES complex / cwf21 / Slt11, RNA recognition motif / Pre-mRNA-splicing factor Cwc2, RNA recognition motif / : / Torus domain / Torus domain / mRNA splicing factor SYF2 / SYF2 splicing factor / : / : / SF3A2 domain / : / Pre-mRNA-splicing factor SF3a complex subunit 2 (Prp11) / mRNA splicing factor Cwf21 domain / cwf21 domain / SF3B4, RNA recognition motif 1 / : / Pre-mRNA-processing factor 17 / Zinc finger C-x8-C-x5-C-x3-H type (and similar) / : / Domain of unknown function DUF382 / Pre-mRNA-splicing factor 19 / Pre-mRNA-processing factor 19 / : / Domain of unknown function (DUF382) / Prp19/Pso4-like / : / Pre-mRNA-splicing factor SYF1 middle HAT repeat / G10 protein signature 2. / Zinc finger, C3HC4 type (RING finger) / Cyclophilin-type peptidyl-prolyl cis-trans isomerase, cyclophilin A-like / BUD31/G10-related, conserved site / G10 protein signature 1. / : / Zinc-finger of C2H2 type / : / STL11, N-terminal / : / Pre-mRNA-splicing factor Syf1/CRNKL1 C-terminal HAT repeat / PHF5-like / PHF5-like protein / SKI-interacting protein SKIP, SNW domain / PSP, proline-rich / SKI-interacting protein, SKIP / SKIP/SNW domain / PSP / proline-rich domain in spliceosome associated proteins / : / Pre-mRNA-splicing factor Syf1/CNRKL1 N-terminal HAT repeat / Pre-mRNA-splicing factor Cwf15/Cwc15 / Splicing factor 3B subunit 5/RDS3 complex subunit 10 / Cwf15/Cwc15 cell cycle control protein / Splicing factor 3B subunit 10 (SF3b10) / WD repeat Prp46/PLRG1-like / Splicing factor 3B subunit 1-like / 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. / Brr2, N-terminal helicase PWI domain / : / N-terminal helicase PWI domain / Pre-mRNA-splicing helicase BRR2 plug domain / Winged Helix-turn-helix domain / Sec63 Brl domain / Zinc finger, CCCH-type superfamily / Modified RING finger domain / : / PPP2R1A-like HEAT repeat / 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 類似検索 - ドメイン・相同性 RDS3 complex subunit 10 / Pre-mRNA-splicing factor ATP-dependent RNA helicase-like protein PRP2 / Pre-mRNA-splicing factor BUD31 / Pre-mRNA-processing protein 45 / Pre-mRNA-processing factor 19 / Pre-mRNA-splicing helicase BRR2 / Pre-mRNA-splicing factor 8 / Pre-mRNA-splicing factor SNU114 / Pre-mRNA-splicing factor SLT11 / Small nuclear ribonucleoprotein-associated protein B ... RDS3 complex subunit 10 / Pre-mRNA-splicing factor ATP-dependent RNA helicase-like protein PRP2 / Pre-mRNA-splicing factor BUD31 / Pre-mRNA-processing protein 45 / Pre-mRNA-processing factor 19 / Pre-mRNA-splicing helicase BRR2 / 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 snRNP component IST3 / Pre-mRNA-processing factor 17 / Small nuclear ribonucleoprotein Sm D3 / Pre-mRNA-splicing factor CWC26 / U2 snRNP component HSH155 / Pre-mRNA-splicing factor SYF2 / Pre-mRNA-splicing factor CWC22 / Pre-mRNA-splicing factor CWC24 / Small nuclear ribonucleoprotein F / Small nuclear ribonucleoprotein Sm D1 / Cold sensitive U2 snRNA suppressor 1 / Peptidyl-prolyl isomerase CWC27 / Pre-mRNA-splicing factor CWC21 / Pre-mRNA-splicing factor CEF1 / Pre-mRNA-splicing factor CWC15 / Pre-mRNA-splicing factor SYF1 / Pre-mRNA-splicing factor RSE1 / Pre-mRNA-splicing factor SNT309 / Small nuclear ribonucleoprotein Sm D2 / Pre-mRNA-splicing factor RDS3 / Pre-mRNA-splicing factor PRP11 / Pre-mRNA leakage protein 1 / Pre-mRNA-splicing factor CWC2 / Pre-mRNA-splicing factor CLF1 / Small nuclear ribonucleoprotein E / Pre-mRNA-splicing factor PRP46 / Protein HSH49 類似検索 - 構成要素生物種 Saccharomyces cerevisiae S288c (パン酵母) / Saccharomyces cerevisiae (strain ATCC 204508 / S288c) (パン酵母) / Saccharomyces cerevisiae (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 : 3.5 Å 詳細 データ登録者Yan C / Wan R 引用ジャーナル : Science / 年 : 2016タイトル : Structure of a yeast activated spliceosome at 3.5 Å resolution.著者 : Chuangye Yan / Ruixue Wan / Rui Bai / Gaoxingyu Huang / Yigong Shi / 要旨 : Pre-messenger RNA (pre-mRNA) splicing is carried out by the spliceosome, which undergoes an intricate assembly and activation process. Here, we report an atomic structure of an activated spliceosome ... Pre-messenger RNA (pre-mRNA) splicing is carried out by the spliceosome, which undergoes an intricate assembly and activation process. Here, we report an atomic structure of an activated spliceosome (known as the B(act) complex) from Saccharomyces cerevisiae, determined by cryo-electron microscopy at an average resolution of 3.52 angstroms. The final refined model contains U2 and U5 small nuclear ribonucleoprotein particles (snRNPs), U6 small nuclear RNA (snRNA), nineteen complex (NTC), NTC-related (NTR) protein, and a 71-nucleotide pre-mRNA molecule, which amount to 13,505 amino acids from 38 proteins and a combined molecular mass of about 1.6 megadaltons. The 5' exon is anchored by loop I of U5 snRNA, whereas the 5' splice site (5'SS) and the branch-point sequence (BPS) of the intron are specifically recognized by U6 and U2 snRNA, respectively. Except for coordination of the catalytic metal ions, the RNA elements at the catalytic cavity of Prp8 are mostly primed for catalysis. The catalytic latency is maintained by the SF3b complex, which encircles the BPS, and the splicing factors Cwc24 and Prp11, which shield the 5' exon-5'SS junction. This structure, together with those determined earlier, outlines a molecular framework for the pre-mRNA splicing reaction. 履歴 登録 2016年8月18日 - ヘッダ(付随情報) 公開 2016年9月21日 - マップ公開 2016年9月21日 - 更新 2024年11月27日 - 現状 2024年11月27日 処理サイト : PDBj / 状態 : 公開
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