- EMDB-9646: Cryo-EM structure of a human intron lariat spliceosome prior to P... -
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基本情報
登録情報
データベース: EMDB / ID: EMD-9646
タイトル
Cryo-EM structure of a human intron lariat spliceosome prior to Prp43 loaded (ILS1 complex) at 2.9 angstrom resolution
マップデータ
The 2.9 angstrom map of the human ILS1 complex
試料
複合体: Human Intron Lariat Spliceosome
タンパク質・ペプチド: x 28種
RNA: x 4種
リガンド: x 4種
キーワード
Human Intron Lariat Spliceosome / SPLICING
機能・相同性
機能・相同性情報
regulation of retinoic acid receptor signaling pathway / post-mRNA release spliceosomal complex / 3'-5' RNA helicase activity / U2 snRNP binding / U7 snRNA binding / histone pre-mRNA DCP binding / generation of catalytic spliceosome for first transesterification step / U7 snRNP / histone pre-mRNA 3'end processing complex / regulation of vitamin D receptor signaling pathway ...regulation of retinoic acid receptor signaling pathway / post-mRNA release spliceosomal complex / 3'-5' RNA helicase activity / U2 snRNP binding / U7 snRNA binding / histone pre-mRNA DCP binding / generation of catalytic spliceosome for first transesterification step / U7 snRNP / histone pre-mRNA 3'end processing complex / regulation of vitamin D receptor signaling pathway / SLBP independent Processing of Histone Pre-mRNAs / SLBP Dependent Processing of Replication-Dependent Histone Pre-mRNAs / nuclear retinoic acid receptor binding / embryonic brain development / oocyte development / protein methylation / alternative mRNA splicing, via spliceosome / U12-type spliceosomal complex / poly(A) binding / 7-methylguanosine cap hypermethylation / U1 snRNP binding / U2-type catalytic step 1 spliceosome / RNA splicing, via transesterification reactions / methylosome / pre-mRNA binding / pICln-Sm protein complex / positive regulation of mRNA splicing, via spliceosome / snRNP binding / mRNA 3'-end processing / sno(s)RNA-containing ribonucleoprotein complex / small nuclear ribonucleoprotein complex / Notch binding / host-mediated activation of viral transcription / SMN-Sm protein complex / spliceosomal tri-snRNP complex / mRNA cis splicing, via spliceosome / U2-type precatalytic spliceosome / P granule / positive regulation of vitamin D receptor signaling pathway / commitment complex / telomerase holoenzyme complex / nuclear vitamin D receptor binding / U2-type prespliceosome assembly / U2-type spliceosomal complex / Transport of Mature mRNA derived from an Intron-Containing Transcript / Regulation of gene expression in late stage (branching morphogenesis) pancreatic bud precursor cells / telomerase RNA binding / RUNX3 regulates NOTCH signaling / U2-type catalytic step 2 spliceosome / NOTCH4 Intracellular Domain Regulates Transcription / U2 snRNP / U1 snRNP / RNA Polymerase II Transcription Termination / U4 snRNP / NOTCH3 Intracellular Domain Regulates Transcription / positive regulation of neurogenesis / U2-type prespliceosome / inner cell mass cell proliferation / protein peptidyl-prolyl isomerization / K63-linked polyubiquitin modification-dependent protein binding / nuclear androgen receptor binding / ubiquitin-ubiquitin ligase activity / cyclosporin A binding / precatalytic spliceosome / WD40-repeat domain binding / Notch-HLH transcription pathway / lipid biosynthetic process / Formation of paraxial mesoderm / SMAD binding / positive regulation of transforming growth factor beta receptor signaling pathway / mitotic G2 DNA damage checkpoint signaling / spliceosomal complex assembly / mRNA Splicing - Minor Pathway / spliceosomal tri-snRNP complex assembly / Prp19 complex / U5 snRNA binding / U5 snRNP / intrinsic apoptotic signaling pathway in response to DNA damage by p53 class mediator / blastocyst development / protein K63-linked ubiquitination / embryonic organ development / U2 snRNA binding / positive regulation of G1/S transition of mitotic cell cycle / U6 snRNA binding / pre-mRNA intronic binding / protein localization to nucleus / spliceosomal snRNP assembly / U1 snRNA binding / RNA processing / Cajal body / positive regulation of viral genome replication / retinoic acid receptor signaling pathway / ovarian follicle development / U4/U6 x U5 tri-snRNP complex / proteasomal protein catabolic process / spindle assembly / cellular response to retinoic acid / catalytic step 2 spliceosome / lipid droplet / transcription-coupled nucleotide-excision repair 類似検索 - 分子機能
Cwf19-like protein, C-terminal domain-2 / Cwf19-like, C-terminal domain-1 / Cwf19-like protein / Protein similar to CwfJ C-terminus 2 / Protein similar to CwfJ C-terminal / Prp19 WD40 domain / : / : / Intron-binding protein aquarius, beta-barrel / Intron-binding protein aquarius insert domain ...Cwf19-like protein, C-terminal domain-2 / Cwf19-like, C-terminal domain-1 / Cwf19-like protein / Protein similar to CwfJ C-terminus 2 / Protein similar to CwfJ C-terminal / Prp19 WD40 domain / : / : / Intron-binding protein aquarius, beta-barrel / Intron-binding protein aquarius insert domain / Peptidyl-prolyl cis-trans isomerase E / Peptidyl-prolyl cis-trans isomerase E, RNA recognition motif / Pre-mRNA-splicing factor SPF27 / Breast carcinoma amplified sequence 2 (BCAS2) / CWF11 family / Intron-binding protein aquarius, N-terminal / Intron-binding protein aquarius N-terminal / mRNA splicing factor SYF2 / SYF2 splicing factor / U2 small nuclear ribonucleoprotein B'', RNA recognition motif 2 / U2 small nuclear ribonucleoprotein B'', RNA recognition motif 1 / 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 / G10 protein signature 2. / Cyclophilin-type peptidyl-prolyl cis-trans isomerase, cyclophilin A-like / BUD31/G10-related, conserved site / U-box domain / G10 protein signature 1. / : / 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 / DNA2/NAM7 helicase, helicase domain / AAA domain / WD repeat Prp46/PLRG1-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 / DNA2/NAM7-like helicase / : / Small ribonucleoprotein associated, SmB/SmN / Myb-like DNA-binding domain / U2 small nuclear ribonucleoprotein A' / Small nuclear ribonucleoprotein D1 / U2A'/phosphoprotein 32 family A, C-terminal / occurring C-terminal to leucine-rich repeats / U-box domain profile. / HIT-like superfamily / Zinc finger, CCCH-type superfamily / Modified RING finger domain / U-box domain / zinc finger / 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 / Small nuclear ribonucleoprotein Sm D2 / Small nuclear ribonucleoprotein Sm D3 / 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 / Zinc finger, CCCH-type / Zinc finger C3H1-type profile. / LSM domain / LSM domain, eukaryotic/archaea-type / snRNP Sm proteins / Myb-type HTH DNA-binding domain profile. / HAT (Half-A-TPR) repeat / HAT (Half-A-TPR) repeats / Cyclophilin-type peptidyl-prolyl cis-trans isomerase / Myb domain / : / Sm domain profile. / Elongation Factor G, domain II / Elongation Factor G, domain III / LSM domain superfamily / Translation elongation factor EFG/EF2, domain IV / Elongation factor G, domain IV 類似検索 - ドメイン・相同性
Pleiotropic regulator 1 / RNA helicase aquarius / Pre-mRNA-processing factor 17 / Pre-mRNA-splicing factor SPF27 / Pre-mRNA-splicing factor SYF2 / U2 small nuclear ribonucleoprotein B'' / U2 small nuclear ribonucleoprotein A' / Small nuclear ribonucleoprotein-associated proteins B and B' / Protein BUD31 homolog / Small nuclear ribonucleoprotein E ...Pleiotropic regulator 1 / RNA helicase aquarius / Pre-mRNA-processing factor 17 / Pre-mRNA-splicing factor SPF27 / Pre-mRNA-splicing factor SYF2 / U2 small nuclear ribonucleoprotein B'' / U2 small nuclear ribonucleoprotein A' / Small nuclear ribonucleoprotein-associated proteins B and B' / Protein BUD31 homolog / Small nuclear ribonucleoprotein E / Small nuclear ribonucleoprotein F / Small nuclear ribonucleoprotein G / Small nuclear ribonucleoprotein Sm D1 / Small nuclear ribonucleoprotein Sm D2 / Small nuclear ribonucleoprotein Sm D3 / SNW domain-containing protein 1 / 116 kDa U5 small nuclear ribonucleoprotein component / CWF19-like protein 2 / Small nuclear ribonucleoprotein-associated protein / Pre-mRNA-processing-splicing factor 8 / U5 small nuclear ribonucleoprotein 40 kDa protein / Cell division cycle 5-like protein / Crooked neck-like protein 1 / Pre-mRNA-splicing factor SYF1 / Pre-mRNA-splicing factor RBM22 / Spliceosome-associated protein CWC15 homolog / Pre-mRNA-processing factor 19 / Peptidyl-prolyl cis-trans isomerase E / Peptidyl-prolyl cis-trans isomerase-like 1 類似検索 - 構成要素
ジャーナル: Cell Res / 年: 2019 タイトル: Structures of the human spliceosomes before and after release of the ligated exon. 著者: Xiaofeng Zhang / Xiechao Zhan / Chuangye Yan / Wenyu Zhang / Dongliang Liu / Jianlin Lei / Yigong Shi / 要旨: Pre-mRNA splicing is executed by the spliceosome, which has eight major functional states each with distinct composition. Five of these eight human spliceosomal complexes, all preceding exon ...Pre-mRNA splicing is executed by the spliceosome, which has eight major functional states each with distinct composition. Five of these eight human spliceosomal complexes, all preceding exon ligation, have been structurally characterized. In this study, we report the cryo-electron microscopy structures of the human post-catalytic spliceosome (P complex) and intron lariat spliceosome (ILS) at average resolutions of 3.0 and 2.9 Å, respectively. In the P complex, the ligated exon remains anchored to loop I of U5 small nuclear RNA, and the 3'-splice site is recognized by the junction between the 5'-splice site and the branch point sequence. The ATPase/helicase Prp22, along with the ligated exon and eight other proteins, are dissociated in the P-to-ILS transition. Intriguingly, the ILS complex exists in two distinct conformations, one with the ATPase/helicase Prp43 and one without. Comparison of these three late-stage human spliceosomes reveals mechanistic insights into exon release and spliceosome disassembly.