- EMDB-14921: Structure of the RQT-bound 80S ribosome from S. cerevisiae (C2) -... -
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基本情報
登録情報
データベース: EMDB / ID: EMD-14921
タイトル
Structure of the RQT-bound 80S ribosome from S. cerevisiae (C2) - composite map
マップデータ
composite map of locally refined ribosome and ligand
試料
複合体: ribosome with bound RQT components (Slh1, Cue3 and Rqt4)
複合体: RQT complex (Slh1, Cue3 and Rqt4)
タンパク質・ペプチド: x 3種
複合体: ribosome
RNA: x 5種
タンパク質・ペプチド: x 74種
リガンド: x 2種
機能・相同性
機能・相同性情報
RQC-trigger complex / ribosomal subunit / negative regulation of glucose mediated signaling pathway / negative regulation of translational frameshifting / Negative regulators of DDX58/IFIH1 signaling / ribosome disassembly / mTORC1-mediated signalling / Protein hydroxylation / ribosome-associated ubiquitin-dependent protein catabolic process / GDP-dissociation inhibitor activity ...RQC-trigger complex / ribosomal subunit / negative regulation of glucose mediated signaling pathway / negative regulation of translational frameshifting / Negative regulators of DDX58/IFIH1 signaling / ribosome disassembly / mTORC1-mediated signalling / Protein hydroxylation / ribosome-associated ubiquitin-dependent protein catabolic process / GDP-dissociation inhibitor activity / nonfunctional rRNA decay / pre-mRNA 5'-splice site binding / Formation of the ternary complex, and subsequently, the 43S complex / Translation initiation complex formation / Ribosomal scanning and start codon recognition / cleavage in ITS2 between 5.8S rRNA and LSU-rRNA of tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / response to cycloheximide / K63-linked polyubiquitin modification-dependent protein binding / mRNA destabilization / Major pathway of rRNA processing in the nucleolus and cytosol / SRP-dependent cotranslational protein targeting to membrane / GTP hydrolysis and joining of the 60S ribosomal subunit / Formation of a pool of free 40S subunits / Nonsense Mediated Decay (NMD) independent of the Exon Junction Complex (EJC) / Nonsense Mediated Decay (NMD) enhanced by the Exon Junction Complex (EJC) / negative regulation of mRNA splicing, via spliceosome / L13a-mediated translational silencing of Ceruloplasmin expression / regulation of cellular amino acid metabolic process / preribosome, large subunit precursor / ribosomal large subunit export from nucleus / G-protein alpha-subunit binding / endonucleolytic cleavage to generate mature 3'-end of SSU-rRNA from (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / 90S preribosome / positive regulation of protein kinase activity / protein-RNA complex assembly / regulation of translational fidelity / Ub-specific processing proteases / ribosomal subunit export from nucleus / translation regulator activity / cytosolic ribosome / endonucleolytic cleavage in ITS1 to separate SSU-rRNA from 5.8S rRNA and LSU-rRNA from tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / maturation of LSU-rRNA / cellular response to amino acid starvation / rescue of stalled ribosome / maturation of LSU-rRNA from tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / positive regulation of apoptotic signaling pathway / maturation of SSU-rRNA from tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / ribosomal large subunit biogenesis / ubiquitin binding / helicase activity / maturation of SSU-rRNA / small-subunit processome / translational initiation / macroautophagy / protein kinase C binding / maintenance of translational fidelity / modification-dependent protein catabolic process / cytoplasmic stress granule / rRNA processing / protein tag activity / ribosome biogenesis / ribosome binding / regulation of translation / ribosomal small subunit biogenesis / ribosomal small subunit assembly / small ribosomal subunit / small ribosomal subunit rRNA binding / 5S rRNA binding / large ribosomal subunit rRNA binding / cytosolic small ribosomal subunit / defense response to virus / cytosolic large ribosomal subunit / cytoplasmic translation / RNA helicase activity / rRNA binding / negative regulation of translation / ribosome / protein ubiquitination / RNA helicase / structural constituent of ribosome / ribonucleoprotein complex / translation / positive regulation of protein phosphorylation / G protein-coupled receptor signaling pathway / negative regulation of gene expression / response to antibiotic / mRNA binding / ubiquitin protein ligase binding / nucleolus / positive regulation of DNA-templated transcription / ATP hydrolysis activity / mitochondrion / RNA binding / zinc ion binding / nucleoplasm / ATP binding / nucleus / metal ion binding / cytosol / cytoplasm 類似検索 - 分子機能
CUE domain-containing protein 3, CUE domain / Zinc finger, C2HC5-type / Activating signal cointegrator 1-like / Putative zinc finger motif, C2HC5-type / CUE domain / Domain that may be involved in binding ubiquitin-conjugating enzymes (UBCs) / Ubiquitin system component CUE / CUE domain profile. / Sec63 Brl domain / : ...CUE domain-containing protein 3, CUE domain / Zinc finger, C2HC5-type / Activating signal cointegrator 1-like / Putative zinc finger motif, C2HC5-type / CUE domain / Domain that may be involved in binding ubiquitin-conjugating enzymes (UBCs) / Ubiquitin system component CUE / CUE domain profile. / Sec63 Brl domain / : / Sec63 domain / Sec63 Brl domain / : / : / Ribosomal protein S26e signature. / : / Ribosomal protein L41 / Ribosomal protein L41 / Ribosomal protein S26e / Ribosomal protein S26e superfamily / Ribosomal protein S26e / Ribosomal protein S21e, conserved site / Ribosomal protein S21e signature. / Ribosomal protein S12e signature. / Ribosomal protein S12e / Ribosomal protein S5, eukaryotic/archaeal / Ribosomal protein S19e, conserved site / Ribosomal protein S19e signature. / Small (40S) ribosomal subunit Asc1/RACK1 / Ribosomal protein L29e / Ribosomal L29e protein family / Ribosomal protein S21e / Ribosomal protein S2, eukaryotic / Ribosomal protein S21e superfamily / Ribosomal protein S21e / Ribosomal protein L13e, conserved site / Ribosomal protein L13e signature. / S27a-like superfamily / 40S Ribosomal protein S10 / Ribosomal protein S10, eukaryotic/archaeal / Ribosomal protein L22e / Ribosomal protein L22e superfamily / Ribosomal L22e protein family / Ribosomal protein L38e / Ribosomal protein L38e superfamily / Ribosomal L38e protein family / Plectin/S10, N-terminal / Plectin/S10 domain / Ribosomal protein S25 / S25 ribosomal protein / Ribosomal protein S27a / Ribosomal protein S2, eukaryotic/archaeal / : / : / Ribosomal protein S27a / Ribosomal protein S27a / Ribosomal protein L27e, conserved site / Ribosomal protein L27e signature. / Ribosomal protein S17e, conserved site / Ribosomal protein S17e signature. / Ribosomal protein L44e signature. / Ribosomal protein S8e subdomain, eukaryotes / Ribosomal protein L10e, conserved site / Ribosomal protein L10e signature. / Ribosomal protein S30 / Ribosomal protein S30 / Ribosomal protein L10e / 40S ribosomal protein S29/30S ribosomal protein S14 type Z / Ribosomal protein S7e signature. / Ribosomal protein L13e / Ribosomal protein L13e / Ribosomal protein L19, eukaryotic / Ribosomal protein S3, eukaryotic/archaeal / 60S ribosomal protein L18a/ L20, eukaryotes / : / : / Ribosomal protein S19e / Ribosomal protein S3Ae, conserved site / Ribosomal protein S19e / Ribosomal protein S3Ae signature. / Ribosomal_S19e / Ribosomal protein S27e signature. / Ribosomal protein L24e, conserved site / Ribosomal protein L24e signature. / Ribosomal protein L44e / Ribosomal protein S4e, N-terminal, conserved site / Ribosomal protein L19/L19e conserved site / Ribosomal protein L44 / Ribosomal protein L19e signature. / Ribosomal protein S4e signature. / Ribosomal protein L34e, conserved site / 40S ribosomal protein S4, C-terminal domain / 40S ribosomal protein S4 C-terminus / Ribosomal protein L34e signature. / Ribosomal protein L5 eukaryotic, C-terminal / Ribosomal L18 C-terminal region / Ribosomal protein S19A/S15e / Ribosomal protein S8e, conserved site / Ribosomal protein S8e signature. / Ribosomal protein L6e signature. 類似検索 - ドメイン・相同性
Rps5p / RPS22A isoform 1 / RPS31 isoform 1 / RPL38 isoform 1 / RPL10 isoform 1 / RPS29A isoform 1 / RPS20 isoform 1 / RPS2 isoform 1 / 60S ribosomal protein L29 / RPL24A isoform 1 ...Rps5p / RPS22A isoform 1 / RPS31 isoform 1 / RPL38 isoform 1 / RPL10 isoform 1 / RPS29A isoform 1 / RPS20 isoform 1 / RPS2 isoform 1 / 60S ribosomal protein L29 / RPL24A isoform 1 / RPL11B isoform 1 / 40S ribosomal protein S25 / 40S ribosomal protein S26 / RPL5 isoform 1 / RPL32 isoform 1 / 40S ribosomal protein S3 / RPL4A isoform 1 / Large ribosomal subunit protein uL3 / RPS15 isoform 1 / RPS28A isoform 1 / 40S ribosomal protein S12 / 60S ribosomal protein L41 / Small ribosomal subunit protein uS2A / Small ribosomal subunit protein uS4A / Large ribosomal subunit protein uL15 / Small ribosomal subunit protein eS17A / Large ribosomal subunit protein uL23 / Large ribosomal subunit protein eL39 / Large ribosomal subunit protein uL30A / Large ribosomal subunit protein uL6A / Large ribosomal subunit protein eL6B / Large ribosomal subunit protein uL22A / Large ribosomal subunit protein uL24A / Large ribosomal subunit protein eL33A / Large ribosomal subunit protein eL36A / Large ribosomal subunit protein eL15A / Large ribosomal subunit protein eL22A / Small ribosomal subunit protein uS15 / Small ribosomal subunit protein eS19A / Small ribosomal subunit protein eS21A / Large ribosomal subunit protein eL27A / Large ribosomal subunit protein eL31A / Ubiquitin-ribosomal protein eL40A fusion protein / Large ribosomal subunit protein eL20A / Large ribosomal subunit protein eL43A / Large ribosomal subunit protein eL42A / Small ribosomal subunit protein uS12A / Small ribosomal subunit protein eS24A / Small ribosomal subunit protein eS30A / Small ribosomal subunit protein eS4A / Small ribosomal subunit protein eS6A / Small ribosomal subunit protein eS8A / Large ribosomal subunit protein uL14A / Large ribosomal subunit protein uL2A / Small ribosomal subunit protein uS17A / Large ribosomal subunit protein eL18A / Small ribosomal subunit protein uS9A / Small ribosomal subunit protein uS13A / Large ribosomal subunit protein eL19A / Large ribosomal subunit protein uL29A / Large ribosomal subunit protein eL30 / Large ribosomal subunit protein eL8A / Large ribosomal subunit protein uL13A / Small ribosomal subunit protein eS7A / Small ribosomal subunit protein eS1A / Small ribosomal subunit protein eS27A / Large ribosomal subunit protein eL14A / RQC trigger complex subunit RQT4 / Small ribosomal subunit protein RACK1 / Small ribosomal subunit protein uS11B / Large ribosomal subunit protein eL37A / RQC trigger complex subunit CUE3 / RQC trigger complex helicase SLH1 / Large ribosomal subunit protein eL34A / Large ribosomal subunit protein eL21A / Small ribosomal subunit protein eS10A / Large ribosomal subunit protein eL13A 類似検索 - 構成要素
ジャーナル: Nat Commun / 年: 2023 タイトル: Structural basis for clearing of ribosome collisions by the RQT complex. 著者: Katharina Best / Ken Ikeuchi / Lukas Kater / Daniel Best / Joanna Musial / Yoshitaka Matsuo / Otto Berninghausen / Thomas Becker / Toshifumi Inada / Roland Beckmann / 要旨: Translation of aberrant messenger RNAs can cause stalling of ribosomes resulting in ribosomal collisions. Collided ribosomes are specifically recognized to initiate stress responses and quality ...Translation of aberrant messenger RNAs can cause stalling of ribosomes resulting in ribosomal collisions. Collided ribosomes are specifically recognized to initiate stress responses and quality control pathways. Ribosome-associated quality control facilitates the degradation of incomplete translation products and requires dissociation of the stalled ribosomes. A central event is therefore the splitting of collided ribosomes by the ribosome quality control trigger complex, RQT, by an unknown mechanism. Here we show that RQT requires accessible mRNA and the presence of a neighboring ribosome. Cryogenic electron microscopy of RQT-ribosome complexes reveals that RQT engages the 40S subunit of the lead ribosome and can switch between two conformations. We propose that the Ski2-like helicase 1 (Slh1) subunit of RQT applies a pulling force on the mRNA, causing destabilizing conformational changes of the small ribosomal subunit, ultimately resulting in subunit dissociation. Our findings provide conceptual framework for a helicase-driven ribosomal splitting mechanism.