登録情報 データベース : EMDB / ID : EMD-51133 ダウンロードとリンクタイトル 80S-bound human Ski2-exosome complex マップデータ 詳細 試料複合体 : 80S-bound human Ski2-exosome complexタンパク質・ペプチド : x 12種RNA : x 1種 詳細 キーワード Ribosome / RNase / Helicase / RNA-binding / mRNA-degradation / cytoplasm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
DNA deamination / nucleolar exosome (RNase complex) / exoribonuclease II activity / exoribonuclease II / Dom34-Hbs1 complex / nuclear-transcribed mRNA catabolic process, no-go decay / U1 snRNA 3'-end processing / U5 snRNA 3'-end processing / TRAMP-dependent tRNA surveillance pathway / Ski complex ... DNA deamination / nucleolar exosome (RNase complex) / exoribonuclease II activity / exoribonuclease II / Dom34-Hbs1 complex / nuclear-transcribed mRNA catabolic process, no-go decay / U1 snRNA 3'-end processing / U5 snRNA 3'-end processing / TRAMP-dependent tRNA surveillance pathway / Ski complex / CUT catabolic process / exosome (RNase complex) / U4 snRNA 3'-end processing / cytoplasmic exosome (RNase complex) / mRNA decay by 3' to 5' exoribonuclease / nuclear polyadenylation-dependent rRNA catabolic process / poly(A)-dependent snoRNA 3'-end processing / nuclear exosome (RNase complex) / nuclear-transcribed mRNA catabolic process, 3'-5' exonucleolytic nonsense-mediated decay / exonucleolytic trimming to generate mature 3'-end of 5.8S rRNA from tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / Tristetraprolin (TTP, ZFP36) binds and destabilizes mRNA / ATF4 activates genes in response to endoplasmic reticulum stress / histone mRNA catabolic process / Butyrate Response Factor 1 (BRF1) binds and destabilizes mRNA / positive regulation of isotype switching / 3'-5' RNA helicase activity / nuclear mRNA surveillance / rRNA catabolic process / 7S RNA binding / mRNA 3'-UTR AU-rich region binding / isotype switching / ribosome disassembly / RNA catabolic process / KSRP (KHSRP) binds and destabilizes mRNA / maturation of 5.8S rRNA / nuclear chromosome / mRNA catabolic process / Association of TriC/CCT with target proteins during biosynthesis / nuclear-transcribed mRNA catabolic process / translation elongation factor activity / Major pathway of rRNA processing in the nucleolus and cytosol / RNA processing / cytosolic ribosome / rescue of stalled ribosome / euchromatin / fibrillar center / rRNA processing / chromosome / positive regulation of cell growth / 3'-5'-RNA exonuclease activity / 加水分解酵素; 酸無水物に作用; GTPに作用・細胞または細胞小器官の運動に関与 / defense response to virus / RNA polymerase II-specific DNA-binding transcription factor binding / RNA helicase activity / ciliary basal body / immune response / RNA helicase / translation / GTPase activity / intracellular membrane-bounded organelle / centrosome / GTP binding / nucleolus / enzyme binding / signal transduction / positive regulation of transcription by RNA polymerase II / ATP hydrolysis activity / DNA binding / RNA binding / extracellular exosome / nucleoplasm / ATP binding / identical protein binding / nucleus / membrane / plasma membrane / cytosol / cytoplasm 類似検索 - 分子機能 Exosome complex component Rrp43 / : / Mammalian exosome complex component RRP40, N-terminal / HBS1-like protein, N-terminal domain superfamily / HBS1-like protein, N-terminal / HBS1 N-terminus / Ski2, N-terminal domain / Ski2 N-terminal region / Exosome complex exonuclease RRP44, S1 domain / S1 domain ... Exosome complex component Rrp43 / : / Mammalian exosome complex component RRP40, N-terminal / HBS1-like protein, N-terminal domain superfamily / HBS1-like protein, N-terminal / HBS1 N-terminus / Ski2, N-terminal domain / Ski2 N-terminal region / Exosome complex exonuclease RRP44, S1 domain / S1 domain / Exosome complex component RRP45 / Rrp40, S1 domain / : / Exosome complex component RRP40, S1 domain / Exosome complex component CSL4, C-terminal / Exosome complex component, N-terminal domain / Exosome complex component Csl4 / Exosome component EXOSC1/CSL4 / Exosome complex exonuclease RRP4 N-terminal region / RRP4, S1 domain / Rrp44-like cold shock domain / Rrp44-like cold shock domain / : / KH domain / Exosome complex RNA-binding protein 1/RRP40/RRP4 / Dis3-like cold-shock domain 2 / Dis3-like cold-shock domain 2 (CSD2) / : / Ribonuclease II/R, conserved site / rRNA-processing arch domain / Ribonuclease II family signature. / Mtr4-like, beta-barrel domain / : / Ribonuclease II/R / RNB domain / RNB / : / ATP-dependent RNA helicase Ski2, C-terminal / ATP-dependent RNA helicase Ski2-like / : / DSHCT (NUC185) domain / Exosome RNA helicase MTR4-like, stalk / DSHCT / : / : / GTP-eEF1A C-terminal domain-like / Exoribonuclease, phosphorolytic domain 2 / 3' exoribonuclease family, domain 2 / Exoribonuclease, phosphorolytic domain 1 / PNPase/RNase PH domain superfamily / Exoribonuclease, PH domain 2 superfamily / 3' exoribonuclease family, domain 1 / : / K Homology domain, type 1 / K Homology domain, type 1 superfamily / Translation elongation factor EF1A/initiation factor IF2gamma, C-terminal / Translation elongation factor EFTu-like, domain 2 / Elongation factor Tu domain 2 / Ribosomal protein S1-like RNA-binding domain / S1 domain / Translational (tr)-type GTP-binding domain / Elongation factor Tu GTP binding domain / Translational (tr)-type guanine nucleotide-binding (G) domain profile. / DEAD/DEAH box helicase domain / DEAD/DEAH box helicase / Helicase conserved C-terminal domain / helicase superfamily c-terminal domain / Superfamilies 1 and 2 helicase C-terminal domain profile. / Superfamilies 1 and 2 helicase ATP-binding type-1 domain profile. / DEAD-like helicases superfamily / Helicase, C-terminal / Helicase superfamily 1/2, ATP-binding domain / Translation protein, beta-barrel domain superfamily / Ribosomal protein S5 domain 2-type fold / Nucleic acid-binding, OB-fold / P-loop containing nucleoside triphosphate hydrolase 類似検索 - ドメイン・相同性 Exosome complex component RRP45 / Exosome complex component RRP4 / Exosome complex component RRP42 / Superkiller complex protein 2 / Exosome complex component MTR3 / DIS3-like exonuclease 1 / Exosome complex component RRP43 / Exosome complex component RRP41 / Exosome complex component RRP46 / Exosome complex component RRP40 ... Exosome complex component RRP45 / Exosome complex component RRP4 / Exosome complex component RRP42 / Superkiller complex protein 2 / Exosome complex component MTR3 / DIS3-like exonuclease 1 / Exosome complex component RRP43 / Exosome complex component RRP41 / Exosome complex component RRP46 / Exosome complex component RRP40 / Exosome complex component CSL4 / HBS1-like protein 類似検索 - 構成要素生物種 Homo sapiens (ヒト) / Cricket paralysis virus (ウイルス)手法 単粒子再構成法 / クライオ電子顕微鏡法 / 解像度 : 3.7 Å 詳細 データ登録者Koegel A / Keidel A / Loukeri MJ / Kuhn CC / Langer LM / Schaefer IB / Conti E 資金援助 ドイツ, European Union, デンマーク, 5件 詳細 詳細を隠すOrganization Grant number 国 Max Planck Society ドイツ European Research Council (ERC) 740329 European Union European Research Council (ERC) 101054447 European Union German Research Foundation (DFG) SFB1035 ドイツ Novo Nordisk Foundation 31199 デンマーク
引用ジャーナル : Nature / 年 : 2024タイトル : Structural basis of mRNA decay by the human exosome-ribosome supercomplex.著者 : Alexander Kögel / Achim Keidel / Matina-Jasemi Loukeri / Christopher C Kuhn / Lukas M Langer / Ingmar B Schäfer / Elena Conti / 要旨 : The interplay between translation and mRNA decay is widespread in human cells. In quality-control pathways, exonucleolytic degradation of mRNA associated with translating ribosomes is mediated ... The interplay between translation and mRNA decay is widespread in human cells. In quality-control pathways, exonucleolytic degradation of mRNA associated with translating ribosomes is mediated largely by the cytoplasmic exosome, which includes the exoribonuclease complex EXO10 and the helicase complex SKI238 (refs. ). The helicase can extract mRNA from the ribosome and is expected to transfer it to the exoribonuclease core through a bridging factor, HBS1L3 (also known as SKI7), but the mechanisms of this molecular handover remain unclear. Here we reveal how human EXO10 is recruited by HBS1L3 (SKI7) to an active ribosome-bound SKI238 complex. We show that rather than a sequential handover, a direct physical coupling mechanism takes place, which culminates in the formation of a cytoplasmic exosome-ribosome supercomplex. Capturing the structure during active decay reveals a continuous path in which an RNA substrate threads from the 80S ribosome through the SKI2 helicase into the exoribonuclease active site of the cytoplasmic exosome complex. The SKI3 subunit of the complex directly binds to HBS1L3 (SKI7) and also engages a surface of the 40S subunit, establishing a recognition platform in collided disomes. Exosome and ribosome thus work together as a single structural and functional unit in co-translational mRNA decay, coordinating their activities in a transient supercomplex. 履歴 登録 2024年7月23日 - ヘッダ(付随情報) 公開 2024年10月16日 - マップ公開 2024年10月16日 - 更新 2024年11月20日 - 現状 2024年11月20日 処理サイト : PDBe / 状態 : 公開
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