登録情報 データベース : EMDB / ID : EMD-18225 ダウンロードとリンクタイトル cryo-EM structure of the human spliceosomal B complex protomer (tri-snRNP core region) マップデータ 詳細 試料複合体 : human pre-catalytic spliceosomeRNA : x 4種タンパク質・ペプチド : x 17種 詳細 キーワード spliceosome / pre-catalytic spliceosome / spliceosomal B complex / 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
microfibril / spliceosomal snRNP complex / ribonucleoprotein complex localization / U4atac snRNP / positive regulation of cytotoxic T cell differentiation / maturation of 5S rRNA / RNA localization / U4atac snRNA binding / box C/D sno(s)RNA binding / dense fibrillar component ... microfibril / spliceosomal snRNP complex / ribonucleoprotein complex localization / U4atac snRNP / positive regulation of cytotoxic T cell differentiation / maturation of 5S rRNA / RNA localization / U4atac snRNA binding / box C/D sno(s)RNA binding / dense fibrillar component / box C/D methylation guide snoRNP complex / U4/U6 snRNP / transcription elongation factor activity / RNA splicing, via transesterification reactions / U2-type catalytic step 1 spliceosome / snRNP binding / proline-rich region binding / spliceosomal tri-snRNP complex / U4 snRNA binding / U2-type precatalytic spliceosome / mRNA cis splicing, via spliceosome / U2-type spliceosomal complex / U2-type prespliceosome assembly / RNA polymerase binding / U2-type catalytic step 2 spliceosome / box C/D snoRNP assembly / U2 snRNP / positive regulation of protein targeting to mitochondrion / U4 snRNP / ubiquitin-like protein conjugating enzyme binding / U2-type prespliceosome / rRNA modification in the nucleus and cytosol / U3 snoRNA binding / K63-linked polyubiquitin modification-dependent protein binding / precatalytic spliceosome / spliceosomal complex assembly / mRNA Splicing - Minor Pathway / mRNA 3'-splice site recognition / MLL1 complex / spliceosomal tri-snRNP complex assembly / negative regulation of transcription elongation by RNA polymerase II / U5 snRNA binding / U5 snRNP / U2 snRNA binding / U6 snRNA binding / pre-mRNA intronic binding / single fertilization / Major pathway of rRNA processing in the nucleolus and cytosol / spliceosomal snRNP assembly / ribonucleoprotein complex binding / RNA processing / U1 snRNA binding / Cajal body / U4/U6 x U5 tri-snRNP complex / catalytic step 2 spliceosome / mRNA Splicing - Major Pathway / RNA splicing / nuclear receptor binding / transcription coregulator activity / response to cocaine / maturation of SSU-rRNA / spliceosomal complex / small-subunit processome / positive regulation of transcription elongation by RNA polymerase II / mRNA splicing, via spliceosome / protein modification process / protein tag activity / cellular response to xenobiotic stimulus / mRNA processing / cellular response to tumor necrosis factor / transcription corepressor activity / cellular response to lipopolysaccharide / microtubule cytoskeleton / ATPase binding / ribosomal small subunit biogenesis / protein-macromolecule adaptor activity / RNA polymerase II-specific DNA-binding transcription factor binding / transcription coactivator activity / nuclear speck / ciliary basal body / cell division / intracellular membrane-bounded organelle / GTPase activity / centrosome / chromatin / GTP binding / nucleolus / negative regulation of transcription by RNA polymerase II / Golgi apparatus / positive regulation of transcription by RNA polymerase II / protein-containing complex / DNA binding / RNA binding / zinc ion binding / nucleoplasm / identical protein binding / nucleus / membrane / cytoplasm / cytosol 類似検索 - 分子機能 WW domain-binding protein 4 / Ubiquitin-like modifier Hub1/Ubl5 / Pre-mRNA-splicing factor 38, C-terminal / Pre-mRNA-splicing factor 38-associated hydrophilic C-term / Micro-fibrillar-associated protein 1, C-terminal / Microfibrillar-associated protein 1 / Microfibril-associated/Pre-mRNA processing / U4/U6.U5 small nuclear ribonucleoprotein component Snu23 / Pre-mRNA-splicing factor 38 / Transcription elongation regulator 1-like ... WW domain-binding protein 4 / Ubiquitin-like modifier Hub1/Ubl5 / Pre-mRNA-splicing factor 38, C-terminal / Pre-mRNA-splicing factor 38-associated hydrophilic C-term / Micro-fibrillar-associated protein 1, C-terminal / Microfibrillar-associated protein 1 / Microfibril-associated/Pre-mRNA processing / U4/U6.U5 small nuclear ribonucleoprotein component Snu23 / Pre-mRNA-splicing factor 38 / Transcription elongation regulator 1-like / PRP38 family / TCERG1 WW domain / PRP4-like superfamily / pre-mRNA processing factor 4 (PRP4) like / U1-C, C2H2-type zinc finger / U1 zinc finger / FF domain / SNU66/SART1 family / HIND motif / SART-1 family / HIND motif / FF domain / FF domain superfamily / FF domain profile. / Contains two conserved F residues / PWI domain superfamily / PWI domain / PWI domain profile. / Pre-mRNA processing factor 4 (PRP4)-like / Splicing Factor Motif, present in Prp18 and Pr04 / Pre-mRNA-splicing factor 3 / U4/U6 small nuclear ribonucleoprotein Prp3 / pre-mRNA processing factor 3 domain / Prp31 C-terminal / U4/U6 small nuclear ribonucleoprotein Prp31 / Splicing factor 3A subunit 1, ubiquitin domain / Prp31 C terminal domain / Small nuclear ribonucleoprotein Prp3, C-terminal domain / Small nuclear ribonucleoprotein Prp3, C-terminal domain / PWI domain / PWI, domain in splicing factors / Dim1 family / Mitosis protein DIM1 / Mitosis protein DIM1 / PRP1 splicing factor, N-terminal / PRP1 splicing factor, N-terminal / Splicing factor 3A subunit 1, conserved domain / Splicing factor 3A subunit 1 / Pre-mRNA splicing factor PRP21 like protein / G10 protein signature 2. / SWAP/Surp / SWAP/Surp superfamily / Surp module / SURP motif repeat profile. / Suppressor-of-White-APricot splicing regulator / BUD31/G10-related, conserved site / G10 protein signature 1. / Matrin/U1-C, C2H2-type zinc finger / Zinc finger matrin-type profile. / G10 protein / Pre-mRNA-splicing factor BUD31 / Zinc-finger double-stranded RNA-binding / Zinc finger, double-stranded RNA binding / NOSIC / Tetratricopeptide repeat / NOSIC (NUC001) domain / Nop domain / Nop domain superfamily / Nop, C-terminal domain / snoRNA binding domain, fibrillarin / Nop domain profile. / H/ACA ribonucleoprotein complex, subunit Nhp2-like / 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 / Matrin/U1-C-like, C2H2-type zinc finger / U1-like zinc finger / Tetratricopeptide repeat / HAT (Half-A-TPR) repeat / HAT (Half-A-TPR) repeats / Elongation Factor G, domain II / Elongation Factor G, domain III / JAB1/Mov34/MPN/PAD-1 ubiquitin protease / Translation elongation factor EFG/EF2, domain IV / Elongation factor G, domain IV / Elongation factor G, domain IV / Elongation factor G C-terminus / WW domain / WW/rsp5/WWP domain signature. / Elongation factor EFG, domain V-like / Elongation factor G C-terminus / WW domain superfamily / WW/rsp5/WWP domain profile. / Domain with 2 conserved Trp (W) residues / EF-G domain III/V-like / WW domain / PROCT domain / Prp8 RNase domain IV, fingers region 類似検索 - ドメイン・相同性 Transcription elongation regulator 1 / U4/U6 small nuclear ribonucleoprotein Prp4 / U4/U6.U5 tri-snRNP-associated protein 1 / U4/U6 small nuclear ribonucleoprotein Prp3 / WW domain-binding protein 4 / Pre-mRNA-processing factor 6 / Protein BUD31 homolog / Microfibrillar-associated protein 1 / NHP2-like protein 1 / Thioredoxin-like protein 4A ... Transcription elongation regulator 1 / U4/U6 small nuclear ribonucleoprotein Prp4 / U4/U6.U5 tri-snRNP-associated protein 1 / U4/U6 small nuclear ribonucleoprotein Prp3 / WW domain-binding protein 4 / Pre-mRNA-processing factor 6 / Protein BUD31 homolog / Microfibrillar-associated protein 1 / NHP2-like protein 1 / Thioredoxin-like protein 4A / 116 kDa U5 small nuclear ribonucleoprotein component / Splicing factor 3A subunit 1 / Pre-mRNA-processing-splicing factor 8 / Pre-mRNA-splicing factor 38A / U4/U6 small nuclear ribonucleoprotein Prp31 / Zinc finger matrin-type protein 2 / Ubiquitin-like protein 5 類似検索 - 構成要素生物種 Homo sapiens (ヒト)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Zhang Z / Kumar V / Dybkov O / Will CL / Urlaub H / Stark H / Luehrmann R 資金援助 ドイツ, 1件 詳細 詳細を隠すOrganization Grant number 国 German Research Foundation (DFG) ドイツ
引用ジャーナル : EMBO J / 年 : 2024タイトル : Cryo-EM analyses of dimerized spliceosomes provide new insights into the functions of B complex proteins.著者 : Zhenwei Zhang / Vinay Kumar / Olexandr Dybkov / Cindy L Will / Henning Urlaub / Holger Stark / Reinhard Lührmann / 要旨 : The B complex is a key intermediate stage of spliceosome assembly. To improve the structural resolution of monomeric, human spliceosomal B (hB) complexes and thereby generate a more comprehensive hB ... The B complex is a key intermediate stage of spliceosome assembly. To improve the structural resolution of monomeric, human spliceosomal B (hB) complexes and thereby generate a more comprehensive hB molecular model, we determined the cryo-EM structure of B complex dimers formed in the presence of ATP S. The enhanced resolution of these complexes allows a finer molecular dissection of how the 5' splice site (5'ss) is recognized in hB, and new insights into molecular interactions of FBP21, SNU23 and PRP38 with the U6/5'ss helix and with each other. It also reveals that SMU1 and RED are present as a heterotetrameric complex and are located at the interface of the B dimer protomers. We further show that MFAP1 and UBL5 form a 5' exon binding channel in hB, and elucidate the molecular contacts stabilizing the 5' exon at this stage. Our studies thus yield more accurate models of protein and RNA components of hB complexes. They further allow the localization of additional proteins and protein domains (such as SF3B6, BUD31 and TCERG1) whose position was not previously known, thereby uncovering new functions for B-specific and other hB proteins during pre-mRNA splicing. 履歴 登録 2023年8月16日 - ヘッダ(付随情報) 公開 2024年1月24日 - マップ公開 2024年1月24日 - 更新 2024年10月23日 - 現状 2024年10月23日 処理サイト : PDBe / 状態 : 公開
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