登録情報 データベース : EMDB / ID : EMD-6974 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 complex at average resolution of 3.9 angstrom マップデータcryo-EM structure of the spliceosomal B complex 詳細 試料細胞 : yeast fully assembled spliceosomal B complex before activationタンパク質・ペプチド : x 41種RNA : x 5種リガンド : x 2種 詳細 キーワード spliceosome / assembly / 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
maintenance of RNA location / RES complex / spliceosomal conformational changes to generate catalytic conformation / mRNA decay by 5' to 3' exoribonuclease / snoRNA splicing / maturation of 5S rRNA / snoRNA guided rRNA 2'-O-methylation / Lsm1-7-Pat1 complex / U6 snRNP / deadenylation-dependent decapping of nuclear-transcribed mRNA ... maintenance of RNA location / RES complex / spliceosomal conformational changes to generate catalytic conformation / mRNA decay by 5' to 3' exoribonuclease / snoRNA splicing / maturation of 5S rRNA / snoRNA guided rRNA 2'-O-methylation / Lsm1-7-Pat1 complex / U6 snRNP / deadenylation-dependent decapping of nuclear-transcribed mRNA / box C/D sno(s)RNA 3'-end processing / generation of catalytic spliceosome for first transesterification step / box C/D methylation guide snoRNP complex / spliceosome conformational change to release U4 (or U4atac) and U1 (or U11) / U4/U6 snRNP / 7-methylguanosine cap hypermethylation / sno(s)RNA-containing ribonucleoprotein complex / pICln-Sm protein complex / U4 snRNA 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 / P-body assembly / U1 snRNP / U3 snoRNA binding / poly(U) RNA binding / U2-type prespliceosome / tRNA processing / precatalytic spliceosome / generation of catalytic spliceosome for second transesterification step / Major pathway of rRNA processing in the nucleolus and cytosol / spliceosomal complex assembly / mRNA 5'-splice site recognition / mRNA 3'-splice site recognition / nuclear-transcribed mRNA catabolic process / spliceosomal tri-snRNP complex assembly / Prp19 complex / U5 snRNA binding / U5 snRNP / U2 snRNA binding / U6 snRNA binding / pre-mRNA intronic binding / spliceosomal snRNP assembly / mRNA export from nucleus / U1 snRNA binding / cellular response to glucose starvation / U4/U6 x U5 tri-snRNP complex / catalytic step 2 spliceosome / maturation of SSU-rRNA from tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / maturation of SSU-rRNA / spliceosomal complex / small-subunit processome / P-body / mRNA splicing, via spliceosome / metallopeptidase activity / rRNA processing / nucleic acid binding / RNA helicase activity / RNA helicase / response to xenobiotic stimulus / mRNA binding / GTPase activity / GTP binding / nucleolus / ATP hydrolysis activity / mitochondrion / RNA binding / zinc ion binding / nucleoplasm / ATP binding / identical protein binding / nucleus / cytosol / cytoplasm 類似検索 - 分子機能 Pre-mRNA-splicing factor Prp9, N-terminal / Pre-mRNA-splicing factor PRP9 N-terminus / U4/U6.U5 small nuclear ribonucleoprotein component Snu23 / Ist3-like, RNA recognition motif / : / Bud13 / : / Pre-mRNA-splicing factor of RES complex / Pre-mRNA-splicing factor 38 / PRP38 family ... Pre-mRNA-splicing factor Prp9, N-terminal / Pre-mRNA-splicing factor PRP9 N-terminus / U4/U6.U5 small nuclear ribonucleoprotein component Snu23 / Ist3-like, RNA recognition motif / : / Bud13 / : / Pre-mRNA-splicing factor of RES complex / Pre-mRNA-splicing factor 38 / PRP38 family / SNU66/SART1 family / HIND motif / : / SART-1 family / HIND motif / Sm-like protein Lsm8 / Pre-mRNA processing factor 4 (PRP4)-like / U6 snRNA-associated Sm-like protein LSm2 / Sm-like protein Lsm4 / Splicing Factor Motif, present in Prp18 and Pr04 / Sm-like protein Lsm7 / U6 snRNA-associated Sm-like protein Lsm1/8 / Sm-like protein LSm5 / Sm-like protein Lsm3 / U6 snRNA-associated Sm-like protein Lsm3 / RNA recognition motif. (a.k.a. RRM, RBD, or RNP domain) / 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 / Prp31 C terminal domain / Small nuclear ribonucleoprotein Prp3, C-terminal domain / Small nuclear ribonucleoprotein Prp3, C-terminal domain / Dim1 family / Mitosis protein DIM1 / Mitosis protein DIM1 / PRP1 splicing factor, N-terminal / SF3A2 domain / : / PRP1 splicing factor, N-terminal / Pre-mRNA-splicing factor SF3a complex subunit 2 (Prp11) / Splicing factor SF3a60 /Prp9 subunit, C-terminal / SF3A3 domain / SF3a60/Prp9 C-terminal / Pre-mRNA-splicing factor SF3A3, of SF3a complex, Prp9 / SF3B4, RNA recognition motif 1 / : / Splicing factor 3A subunit 1, conserved domain / Splicing factor 3A subunit 1 / Pre-mRNA splicing factor PRP21 like protein / : / : / Domain of unknown function DUF382 / Domain of unknown function (DUF382) / SWAP/Surp / SWAP/Surp superfamily / Surp module / SURP motif repeat profile. / Suppressor-of-White-APricot splicing regulator / : / Zinc-finger of C2H2 type / PHF5-like / PHF5-like protein / PSP, proline-rich / PSP / proline-rich domain in spliceosome associated proteins / Splicing factor 3B subunit 5/RDS3 complex subunit 10 / Splicing factor 3B subunit 10 (SF3b10) / Splicing factor 3B subunit 1-like / Matrin/U1-C, C2H2-type zinc finger / Zinc finger matrin-type profile. / Zinc-finger double-stranded RNA-binding / Zinc finger, double-stranded RNA binding / U2 small nuclear ribonucleoprotein A' / NOSIC / NOSIC (NUC001) domain / Nop domain / Nop domain superfamily / Nop, C-terminal domain / snoRNA binding domain, fibrillarin / Nop domain profile. / U2A'/phosphoprotein 32 family A, C-terminal / occurring C-terminal to leucine-rich repeats / H/ACA ribonucleoprotein complex, subunit Nhp2-like / 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 / : / PPP2R1A-like HEAT repeat / : / Leucine-rich repeat / 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 類似検索 - ドメイン・相同性 RDS3 complex subunit 10 / Pre-mRNA-splicing factor 6 / Pre-mRNA-splicing factor PRP9 / U4/U6 small nuclear ribonucleoprotein PRP4 / Pre-mRNA-splicing factor PRP21 / Pre-mRNA-splicing helicase BRR2 / Pre-mRNA-splicing factor 8 / Pre-mRNA-splicing factor SNU114 / LSM complex subunit LSM2 / Pre-mRNA-splicing factor SPP381 ... RDS3 complex subunit 10 / Pre-mRNA-splicing factor 6 / Pre-mRNA-splicing factor PRP9 / U4/U6 small nuclear ribonucleoprotein PRP4 / Pre-mRNA-splicing factor PRP21 / Pre-mRNA-splicing helicase BRR2 / Pre-mRNA-splicing factor 8 / Pre-mRNA-splicing factor SNU114 / LSM complex subunit LSM2 / Pre-mRNA-splicing factor SPP381 / 13 kDa ribonucleoprotein-associated protein / Small nuclear ribonucleoprotein-associated protein B / LSM complex subunit LSM4 / LSM complex subunit LSM5 / Small nuclear ribonucleoprotein G / U2 snRNP component IST3 / U2 small nuclear ribonucleoprotein B'' / Small nuclear ribonucleoprotein Sm D3 / Pre-mRNA-splicing factor CWC26 / LSM2-LSM8 complex subunit LSM8 / Pre-mRNA-processing factor 31 / U2 snRNP component HSH155 / LSM complex subunit LSM7 / Small nuclear ribonucleoprotein F / LSM complex subunit LSM3 / Pre-mRNA-splicing factor 38 / Small nuclear ribonucleoprotein Sm D1 / Cold sensitive U2 snRNA suppressor 1 / U4/U6 small nuclear ribonucleoprotein PRP3 / Pre-mRNA-splicing factor RSE1 / Small nuclear ribonucleoprotein Sm D2 / LSM complex subunit LSM6 / Spliceosomal protein DIB1 / Pre-mRNA-splicing factor RDS3 / Pre-mRNA-splicing factor PRP11 / Pre-mRNA leakage protein 1 / U2 small nuclear ribonucleoprotein A' / Small nuclear ribonucleoprotein E / 23 kDa U4/U6.U5 small nuclear ribonucleoprotein component / 66 kDa U4/U6.U5 small nuclear ribonucleoprotein component / Protein HSH49 類似検索 - 構成要素生物種 Saccharomyces cerevisiae S288c (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 : 3.9 Å 詳細 データ登録者Shi Y / Bai R 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 National Natural Science Foundation of China 31621092 中国 Ministry of Science and Technology (China) 2016YFA0501100 中国
引用ジャーナル : Science / 年 : 2018タイトル : Structures of the fully assembled spliceosome before activation.著者 : Rui Bai / Ruixue Wan / Chuangye Yan / Jianlin Lei / Yigong Shi / 要旨 : The precatalytic spliceosome (B complex) is preceded by the pre-B complex. Here we report the cryo-electron microscopy structures of the pre-B and B complexes at average resolutions of 3.3 to 4.6 ... The precatalytic spliceosome (B complex) is preceded by the pre-B complex. Here we report the cryo-electron microscopy structures of the pre-B and B complexes at average resolutions of 3.3 to 4.6 and 3.9 angstroms, respectively. In the pre-B complex, the duplex between the 5' splice site (5'SS) and U1 small nuclear RNA (snRNA) is recognized by Yhc1, Luc7, and the Sm ring. In the B complex, U1 small nuclear ribonucleoprotein is dissociated, the 5'-exon-5'SS sequences are translocated near U6 snRNA, and three B-specific proteins may orient the precursor messenger RNA. In both complexes, U6 snRNA is anchored to loop I of U5 snRNA, and the duplex between the branch point sequence and U2 snRNA is recognized by the SF3b complex. Structural analysis reveals the mechanism of assembly and activation for the yeast spliceosome. 履歴 登録 2018年5月16日 - ヘッダ(付随情報) 公開 2018年8月29日 - マップ公開 2018年8月29日 - 更新 2024年3月27日 - 現状 2024年3月27日 処理サイト : PDBj / 状態 : 公開
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