- EMDB-4630: Cryo-EM structures of Lsg1-TAP pre-60S ribosomal particles -
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基本情報
登録情報
データベース: EMDB / ID: EMD-4630
タイトル
Cryo-EM structures of Lsg1-TAP pre-60S ribosomal particles
マップデータ
試料
複合体: Lsg1-TAP 60s ribosomal subunit
RNA: x 3種
タンパク質・ペプチド: x 42種
リガンド: x 1種
キーワード
60S subunit / eIF6 / Nmd3 / Lsg1 / RIBOSOME
機能・相同性
機能・相同性情報
maturation of 5.8S rRNA from tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / pre-mRNA 5'-splice site binding / cleavage in ITS2 between 5.8S rRNA and LSU-rRNA of tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / response to cycloheximide / maturation of 5.8S rRNA / SRP-dependent cotranslational protein targeting to membrane / GTP hydrolysis and joining of the 60S ribosomal subunit / ribosomal large subunit binding / Formation of a pool of free 40S subunits / Nonsense Mediated Decay (NMD) independent of the Exon Junction Complex (EJC) ...maturation of 5.8S rRNA from tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / pre-mRNA 5'-splice site binding / cleavage in ITS2 between 5.8S rRNA and LSU-rRNA of tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / response to cycloheximide / maturation of 5.8S rRNA / SRP-dependent cotranslational protein targeting to membrane / GTP hydrolysis and joining of the 60S ribosomal subunit / ribosomal large subunit binding / 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 / preribosome, large subunit precursor / ribosomal large subunit export from nucleus / protein-RNA complex assembly / regulation of translational fidelity / ribosomal subunit export from nucleus / translational termination / translation initiation factor activity / maturation of LSU-rRNA from tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / assembly of large subunit precursor of preribosome / cytosolic ribosome assembly / maturation of LSU-rRNA / ribosomal large subunit biogenesis / macroautophagy / maintenance of translational fidelity / ribosomal large subunit assembly / modification-dependent protein catabolic process / rRNA processing / protein tag activity / ribosome biogenesis / 5S rRNA binding / large ribosomal subunit rRNA binding / cytosolic large ribosomal subunit / cytoplasmic translation / rRNA binding / negative regulation of translation / ribosome / protein ubiquitination / structural constituent of ribosome / translation / response to antibiotic / mRNA binding / ubiquitin protein ligase binding / nucleolus / RNA binding / nucleus / metal ion binding / cytoplasm / cytosol 類似検索 - 分子機能
Zinc finger protein 622/Rei1/Reh1 / ZN622/Rei1/Reh1, zinc finger C2H2-type / C2H2 type zinc-finger (2 copies) / Translation initiation factor IF6 / eIF-6 family / translation initiation factor 6 / Ribosomal protein L29e / Ribosomal L29e protein family / Ribosomal protein L13e, conserved site / Ribosomal protein L13e signature. ...Zinc finger protein 622/Rei1/Reh1 / ZN622/Rei1/Reh1, zinc finger C2H2-type / C2H2 type zinc-finger (2 copies) / Translation initiation factor IF6 / eIF-6 family / translation initiation factor 6 / Ribosomal protein L29e / Ribosomal L29e protein family / Ribosomal protein L13e, conserved site / Ribosomal protein L13e signature. / Ribosomal protein L22e / Ribosomal protein L22e superfamily / Ribosomal L22e protein family / Ribosomal protein L38e / Ribosomal protein L38e superfamily / Ribosomal L38e protein family / Ribosomal protein L27e, conserved site / Ribosomal protein L27e signature. / Ribosomal protein L44e signature. / Ribosomal protein L10e, conserved site / Ribosomal protein L10e signature. / Ribosomal protein L10e / Ribosomal protein L13e / Ribosomal protein L13e / Ribosomal protein L19, eukaryotic / 60S ribosomal protein L18a/ L20, eukaryotes / : / Ribosomal protein L24e, conserved site / Ribosomal protein L24e signature. / Ribosomal protein L44e / Ribosomal protein L19/L19e conserved site / Ribosomal protein L44 / Ribosomal protein L19e signature. / Ribosomal protein L34e, conserved site / Ribosomal protein L34e signature. / Ribosomal protein L5 eukaryotic, C-terminal / Ribosomal L18 C-terminal region / Ribosomal protein L6e signature. / 50S ribosomal protein L18Ae/60S ribosomal protein L20 and L18a / Ribosomal L40e family / Ribosomal protein L30e signature 1. / Ribosomal protein 50S-L18Ae/60S-L20/60S-L18A / Ribosomal proteins 50S-L18Ae/60S-L20/60S-L18A / Ribosomal_L40e / Ribosomal protein L40e / Ribosomal protein L40e superfamily / Eukaryotic Ribosomal Protein L27, KOW domain / Ribosomal protein L23/L25, N-terminal / Ribosomal protein L23, N-terminal domain / Ribosomal protein L30e signature 2. / Ribosomal protein L30e, conserved site / Ribosomal protein 60S L18 and 50S L18e / Ribosomal protein L27e / Ribosomal protein L27e superfamily / Ribosomal L27e protein family / Ribosomal protein L36e signature. / Ribosomal protein L39e, conserved site / Ribosomal protein L39e signature. / Ribosomal protein L34Ae / Ribosomal protein L34e / 60S ribosomal protein L19 / Ribosomal protein L35Ae, conserved site / Ribosomal protein L35Ae signature. / Ribosomal protein L18/L18-A/B/e, conserved site / Ribosomal protein L18e signature. / Ribosomal protein L30/YlxQ / 60S ribosomal protein L35 / Ribosomal Protein L6, KOW domain / Ribosomal protein L7A/L8 / Ribosomal protein L6e / Ribosomal protein L13, eukaryotic/archaeal / 60S ribosomal protein L6E / Ribosomal protein L18e / 60S ribosomal protein L4, C-terminal domain / 60S ribosomal protein L4 C-terminal domain / Ribosomal protein L37ae / Ribosomal protein L7, eukaryotic / Ribosomal protein L31e, conserved site / Ribosomal L37ae protein family / Ribosomal protein L31e signature. / Ribosomal_L19e / Ribosomal protein L30, N-terminal / Ribosomal L30 N-terminal domain / Ribosomal protein L19/L19e / Ribosomal protein L19/L19e, domain 1 / Ribosomal protein L19/L19e superfamily / Ribosomal protein L19e / Ribosomal protein L36e / Ribosomal protein L36e domain superfamily / Ribosomal protein L36e / Ribosomal protein L39e / Ribosomal protein L14e domain / Ribosomal protein L39e domain superfamily / Ribosomal L39 protein / Ribosomal protein L14 / Ribosomal protein L5 eukaryotic/L18 archaeal / Ribosomal large subunit proteins 60S L5, and 50S L18 / Ribosomal protein L35A / Ribosomal protein L35Ae / Ribosomal protein L35A superfamily 類似検索 - ドメイン・相同性
Large ribosomal subunit protein uL15 / Large ribosomal subunit protein eL24A / Large ribosomal subunit protein uL23 / Large ribosomal subunit protein eL39 / Large ribosomal subunit protein uL30A / Large ribosomal subunit protein uL6A / Large ribosomal subunit protein uL22A / Large ribosomal subunit protein uL24A / Large ribosomal subunit protein eL33A / Large ribosomal subunit protein eL36A ...Large ribosomal subunit protein uL15 / Large ribosomal subunit protein eL24A / Large ribosomal subunit protein uL23 / Large ribosomal subunit protein eL39 / Large ribosomal subunit protein uL30A / Large ribosomal subunit protein uL6A / Large ribosomal subunit protein uL22A / Large ribosomal subunit protein uL24A / Large ribosomal subunit protein eL33A / Large ribosomal subunit protein eL36A / Large ribosomal subunit protein eL29 / Large ribosomal subunit protein eL15A / Large ribosomal subunit protein eL22A / Large ribosomal subunit protein uL5A / 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 / Large ribosomal subunit protein uL14A / Large ribosomal subunit protein uL2A / Large ribosomal subunit protein eL18A / Large ribosomal subunit protein eL19A / Large ribosomal subunit protein uL29A / Large ribosomal subunit protein uL4A / Large ribosomal subunit protein eL30 / Large ribosomal subunit protein uL3 / Large ribosomal subunit protein eL8A / Large ribosomal subunit protein uL18 / Large ribosomal subunit protein uL13B / Large ribosomal subunit protein eL14A / Large ribosomal subunit protein eL32 / Large ribosomal subunit protein uL16 / Large ribosomal subunit protein eL37A / Large ribosomal subunit protein eL38 / Large ribosomal subunit protein eL34A / Large ribosomal subunit protein eL6A / Large ribosomal subunit protein eL21A / Cytoplasmic 60S subunit biogenesis factor REH1 / Eukaryotic translation initiation factor 6 / Large ribosomal subunit protein eL13A 類似検索 - 構成要素
ジャーナル: Elife / 年: 2019 タイトル: Mechanism of completion of peptidyltransferase centre assembly in eukaryotes. 著者: Vasileios Kargas / Pablo Castro-Hartmann / Norberto Escudero-Urquijo / Kyle Dent / Christine Hilcenko / Carolin Sailer / Gertrude Zisser / Maria J Marques-Carvalho / Simone Pellegrino / ...著者: Vasileios Kargas / Pablo Castro-Hartmann / Norberto Escudero-Urquijo / Kyle Dent / Christine Hilcenko / Carolin Sailer / Gertrude Zisser / Maria J Marques-Carvalho / Simone Pellegrino / Leszek Wawiórka / Stefan Mv Freund / Jane L Wagstaff / Antonina Andreeva / Alexandre Faille / Edwin Chen / Florian Stengel / Helmut Bergler / Alan John Warren / 要旨: During their final maturation in the cytoplasm, pre-60S ribosomal particles are converted to translation-competent large ribosomal subunits. Here, we present the mechanism of peptidyltransferase ...During their final maturation in the cytoplasm, pre-60S ribosomal particles are converted to translation-competent large ribosomal subunits. Here, we present the mechanism of peptidyltransferase centre (PTC) completion that explains how integration of the last ribosomal proteins is coupled to release of the nuclear export adaptor Nmd3. Single-particle cryo-EM reveals that eL40 recruitment stabilises helix 89 to form the uL16 binding site. The loading of uL16 unhooks helix 38 from Nmd3 to adopt its mature conformation. In turn, partial retraction of the L1 stalk is coupled to a conformational switch in Nmd3 that allows the uL16 P-site loop to fully accommodate into the PTC where it competes with Nmd3 for an overlapping binding site (base A2971). Our data reveal how the central functional site of the ribosome is sculpted and suggest how the formation of translation-competent 60S subunits is disrupted in leukaemia-associated ribosomopathies.