- EMDB-11520: Cryo-EM structure of a late human pre-40S ribosomal subunit - State H1 -
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基本情報
登録情報
データベース: EMDB / ID: EMD-11520
タイトル
Cryo-EM structure of a late human pre-40S ribosomal subunit - State H1
マップデータ
試料
複合体: Cryo-EM structure of a late human pre-40S ribosomal subunit - State H1
RNA: x 1種
タンパク質・ペプチド: x 36種
リガンド: x 4種
キーワード
Ribosome Biogenesis / Pre-40S / RIBOSOME
機能・相同性
機能・相同性情報
methyltransferase complex / phenylalanine-tRNA ligase activity / phenylalanyl-tRNA aminoacylation / 加水分解酵素; 酸無水物に作用; 酸無水物に作用・物質の膜輸送を触媒する / positive regulation of rRNA processing / oxidized pyrimidine DNA binding / response to TNF agonist / positive regulation of base-excision repair / negative regulation of endoplasmic reticulum unfolded protein response / negative regulation of peptidyl-serine phosphorylation ...methyltransferase complex / phenylalanine-tRNA ligase activity / phenylalanyl-tRNA aminoacylation / 加水分解酵素; 酸無水物に作用; 酸無水物に作用・物質の膜輸送を触媒する / positive regulation of rRNA processing / oxidized pyrimidine DNA binding / response to TNF agonist / positive regulation of base-excision repair / negative regulation of endoplasmic reticulum unfolded protein response / negative regulation of peptidyl-serine phosphorylation / positive regulation of intrinsic apoptotic signaling pathway in response to DNA damage / positive regulation of respiratory burst involved in inflammatory response / positive regulation of gastrulation / regulation of adenylate cyclase-activating G protein-coupled receptor signaling pathway / protein tyrosine kinase inhibitor activity / IRE1-RACK1-PP2A complex / positive regulation of endodeoxyribonuclease activity / nucleolus organization / positive regulation of Golgi to plasma membrane protein transport / translation at postsynapse / TNFR1-mediated ceramide production / negative regulation of DNA repair / negative regulation of RNA splicing / mammalian oogenesis stage / supercoiled DNA binding / activation-induced cell death of T cells / neural crest cell differentiation / NF-kappaB complex / oxidized purine DNA binding / cysteine-type endopeptidase activator activity involved in apoptotic process / negative regulation of intrinsic apoptotic signaling pathway in response to hydrogen peroxide / ubiquitin-like protein conjugating enzyme binding / regulation of establishment of cell polarity / translation at presynapse / positive regulation of ubiquitin-protein transferase activity / Formation of the ternary complex, and subsequently, the 43S complex / erythrocyte homeostasis / negative regulation of phagocytosis / rRNA modification in the nucleus and cytosol / cytoplasmic side of rough endoplasmic reticulum membrane / laminin receptor activity / protein kinase A binding / preribosome, small subunit precursor / negative regulation of ubiquitin protein ligase activity / pigmentation / Ribosomal scanning and start codon recognition / ion channel inhibitor activity / Translation initiation complex formation / positive regulation of mitochondrial depolarization / positive regulation of T cell receptor signaling pathway / positive regulation of activated T cell proliferation / fibroblast growth factor binding / negative regulation of Wnt signaling pathway / monocyte chemotaxis / negative regulation of translational frameshifting / Protein hydroxylation / BH3 domain binding / TOR signaling / SARS-CoV-1 modulates host translation machinery / regulation of cell division / mTORC1-mediated signalling / T cell proliferation involved in immune response / Peptide chain elongation / iron-sulfur cluster binding / positive regulation of intrinsic apoptotic signaling pathway by p53 class mediator / Selenocysteine synthesis / positive regulation of signal transduction by p53 class mediator / Formation of a pool of free 40S subunits / endonucleolytic cleavage to generate mature 3'-end of SSU-rRNA from (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / ubiquitin ligase inhibitor activity / Eukaryotic Translation Termination / Response of EIF2AK4 (GCN2) to amino acid deficiency / SRP-dependent cotranslational protein targeting to membrane / negative regulation of ubiquitin-dependent protein catabolic process / Viral mRNA Translation / negative regulation of respiratory burst involved in inflammatory response / phagocytic cup / Nonsense Mediated Decay (NMD) independent of the Exon Junction Complex (EJC) / GTP hydrolysis and joining of the 60S ribosomal subunit / L13a-mediated translational silencing of Ceruloplasmin expression / erythrocyte development / Major pathway of rRNA processing in the nucleolus and cytosol / regulation of translational fidelity / 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) / Nonsense Mediated Decay (NMD) enhanced by the Exon Junction Complex (EJC) / Protein methylation / spindle assembly / ribosomal small subunit export from nucleus / Nuclear events stimulated by ALK signaling in cancer / positive regulation of intrinsic apoptotic signaling pathway / laminin binding / rough endoplasmic reticulum / translation regulator activity / Amplification of signal from unattached kinetochores via a MAD2 inhibitory signal / positive regulation of cell cycle / translation initiation factor binding / signaling adaptor activity / gastrulation / Maturation of protein E / Maturation of protein E 類似検索 - 分子機能
Probable RNA-binding protein EIF1AD / Serine/threonine-protein kinase Rio1 / : / RIO kinase, conserved site / RIO1/ZK632.3/MJ0444 family signature. / B3/B4 tRNA-binding domain / Phenylalanyl-tRNA synthetase-like, B3/B4 / Phenylalanine-tRNA ligase, class IIc, beta subunit / B3/4 domain / RIO kinase ...Probable RNA-binding protein EIF1AD / Serine/threonine-protein kinase Rio1 / : / RIO kinase, conserved site / RIO1/ZK632.3/MJ0444 family signature. / B3/B4 tRNA-binding domain / Phenylalanyl-tRNA synthetase-like, B3/B4 / Phenylalanine-tRNA ligase, class IIc, beta subunit / B3/4 domain / RIO kinase / RIO-like kinase / : / RIO domain / eukaryotic translation initiation factor 1A / Translation initiation factor 1A (eIF-1A) / Leucine rich repeat 4 / Leucine Rich repeats (2 copies) / RNA-binding domain, S1, IF1 type / Translation initiation factor 1A / IF-1 / S1 domain IF1 type profile. / Leucine-rich repeats, bacterial type / 40S ribosomal protein SA / 40S ribosomal protein SA, C-terminal domain / 40S ribosomal protein SA C-terminus / Ubiquitin-like protein FUBI / : / Ribosomal protein S26e signature. / Ribosomal protein S21e, conserved site / Ribosomal protein S21e signature. / Ribosomal protein S26e / Ribosomal protein S26e superfamily / Ribosomal protein S26e / : / Ribosomal protein S12e signature. / Ribosomal protein S12e / Ribosomal protein S19e, conserved site / Ribosomal protein S19e signature. / Small (40S) ribosomal subunit Asc1/RACK1 / Ribosomal protein S5, eukaryotic/archaeal / Ribosomal protein S21e / Ribosomal protein S21e superfamily / Ribosomal protein S21e / Ribosomal protein S2, eukaryotic / Leucine rich repeat / S27a-like superfamily / Leucine-rich repeat, typical subtype / Leucine-rich repeats, typical (most populated) subfamily / 40S Ribosomal protein S10 / : / Ribosomal protein S7e signature. / Plectin/S10, N-terminal / Plectin/S10 domain / Ribosomal protein S10, eukaryotic/archaeal / Ribosomal protein S8e subdomain, eukaryotes / Ribosomal protein S25 / S25 ribosomal protein / Ribosomal protein S27a / Ribosomal protein S17e, conserved site / Ribosomal protein S27a / Ribosomal protein S17e signature. / Ribosomal protein S27a / Ribosomal protein S3Ae, conserved site / Ribosomal protein S3Ae signature. / Ribosomal protein S30 / Ribosomal protein S30 / Ribosomal protein S2, eukaryotic/archaeal / 40S ribosomal protein S29/30S ribosomal protein S14 type Z / Ribosomal protein S27e signature. / 40S ribosomal protein S4, C-terminal domain / 40S ribosomal protein S4 C-terminus / Ribosomal protein S4e, N-terminal, conserved site / Ribosomal protein S4e signature. / Ribosomal protein S3, eukaryotic/archaeal / Ribosomal protein S19e / Ribosomal protein S8e, conserved site / Ribosomal protein S19e / Ribosomal protein S8e signature. / Ribosomal_S19e / Ribosomal protein S6, eukaryotic / Ribosomal protein S7e / Ribosomal protein S7e / 40S ribosomal protein S1/3, eukaryotes / Ribosomal protein S19A/S15e / Ribosomal protein S17e / Ribosomal protein S17e-like superfamily / Ribosomal S17 / 40S ribosomal protein S11, N-terminal / Ribosomal_S17 N-terminal / : / Ribosomal S24e conserved site / Ribosomal protein S24e signature. / Ribosomal protein S4e, N-terminal / RS4NT (NUC023) domain / Ribosomal protein S4, KOW domain / Ribosomal protein S4e / Ribosomal protein S4e, central region / Ribosomal protein S4e, central domain superfamily / Ribosomal family S4e / Ribosomal protein S23, eukaryotic/archaeal / Ribosomal protein S6/S6e/A/B/2, conserved site 類似検索 - ドメイン・相同性
Small ribosomal subunit protein eS17 / Small ribosomal subunit protein uS2 / Small ribosomal subunit protein uS5 / Small ribosomal subunit protein uS3 / Small ribosomal subunit protein eS12 / Small ribosomal subunit protein eS19 / Small ribosomal subunit protein eS27 / Small ribosomal subunit protein uS4 / Small ribosomal subunit protein uS7 / Small ribosomal subunit protein eS10 ...Small ribosomal subunit protein eS17 / Small ribosomal subunit protein uS2 / Small ribosomal subunit protein uS5 / Small ribosomal subunit protein uS3 / Small ribosomal subunit protein eS12 / Small ribosomal subunit protein eS19 / Small ribosomal subunit protein eS27 / Small ribosomal subunit protein uS4 / Small ribosomal subunit protein uS7 / Small ribosomal subunit protein eS10 / Small ribosomal subunit protein uS10 / Small ribosomal subunit protein eS1 / Small ribosomal subunit protein eS7 / Small ribosomal subunit protein eS8 / Small ribosomal subunit protein uS8 / Small ribosomal subunit protein uS9 / Small ribosomal subunit protein uS11 / Small ribosomal subunit protein uS12 / Small ribosomal subunit protein uS13 / Small ribosomal subunit protein uS14 / Small ribosomal subunit protein uS15 / Small ribosomal subunit protein uS17 / Small ribosomal subunit protein eS4, X isoform / Small ribosomal subunit protein eS6 / Small ribosomal subunit protein uS19 / Small ribosomal subunit protein eS24 / Small ribosomal subunit protein eS25 / Small ribosomal subunit protein eS26 / Small ribosomal subunit protein eS28 / Ubiquitin-like FUBI-ribosomal protein eS30 fusion protein / Ubiquitin-ribosomal protein eS31 fusion protein / Small ribosomal subunit protein eS21 / Small ribosomal subunit protein RACK1 / Leucine-rich repeat-containing protein 47 / Probable RNA-binding protein EIF1AD / Serine/threonine-protein kinase RIO1 類似検索 - 構成要素
ジャーナル: Nature / 年: 2020 タイトル: Structural basis for the final steps of human 40S ribosome maturation. 著者: Michael Ameismeier / Ivo Zemp / Jasmin van den Heuvel / Matthias Thoms / Otto Berninghausen / Ulrike Kutay / Roland Beckmann / 要旨: Eukaryotic ribosomes consist of a small 40S and a large 60S subunit that are assembled in a highly coordinated manner. More than 200 factors ensure correct modification, processing and folding of ...Eukaryotic ribosomes consist of a small 40S and a large 60S subunit that are assembled in a highly coordinated manner. More than 200 factors ensure correct modification, processing and folding of ribosomal RNA and the timely incorporation of ribosomal proteins. Small subunit maturation ends in the cytosol, when the final rRNA precursor, 18S-E, is cleaved at site 3 by the endonuclease NOB1. Previous structures of human 40S precursors have shown that NOB1 is kept in an inactive state by its partner PNO1. The final maturation events, including the activation of NOB1 for the decisive rRNA-cleavage step and the mechanisms driving the dissociation of the last biogenesis factors have, however, remained unresolved. Here we report five cryo-electron microscopy structures of human 40S subunit precursors, which describe the compositional and conformational progression during the final steps of 40S assembly. Our structures explain the central role of RIOK1 in the displacement and dissociation of PNO1, which in turn allows conformational changes and activation of the endonuclease NOB1. In addition, we observe two factors, eukaryotic translation initiation factor 1A domain-containing protein (EIF1AD) and leucine-rich repeat-containing protein 47 (LRRC47), which bind to late pre-40S particles near RIOK1 and the central rRNA helix 44. Finally, functional data shows that EIF1AD is required for efficient assembly factor recycling and 18S-E processing. Our results thus enable a detailed understanding of the last steps in 40S formation in human cells and, in addition, provide evidence for principal differences in small ribosomal subunit formation between humans and the model organism Saccharomyces cerevisiae.
全体 : Cryo-EM structure of a late human pre-40S ribosomal subunit - State H1
全体
名称: Cryo-EM structure of a late human pre-40S ribosomal subunit - State H1
要素
複合体: Cryo-EM structure of a late human pre-40S ribosomal subunit - State H1
RNA: pre-18S ribosomal RNA
タンパク質・ペプチド: 40S ribosomal protein SA
タンパク質・ペプチド: 40S ribosomal protein S3a
タンパク質・ペプチド: 40S ribosomal protein S2
タンパク質・ペプチド: 40S ribosomal protein S26
タンパク質・ペプチド: 40S ribosomal protein S4, X isoform
タンパク質・ペプチド: 40S ribosomal protein S3
タンパク質・ペプチド: 40S ribosomal protein S6
タンパク質・ペプチド: 40S ribosomal protein S7
タンパク質・ペプチド: 40S ribosomal protein S8
タンパク質・ペプチド: 40S ribosomal protein S9
タンパク質・ペプチド: 40S ribosomal protein S5
タンパク質・ペプチド: 40S ribosomal protein S11
タンパク質・ペプチド: 40S ribosomal protein S10
タンパク質・ペプチド: 40S ribosomal protein S13
タンパク質・ペプチド: 40S ribosomal protein S14
タンパク質・ペプチド: 40S ribosomal protein S12
タンパク質・ペプチド: 40S ribosomal protein S15
タンパク質・ペプチド: 40S ribosomal protein S17
タンパク質・ペプチド: 40S ribosomal protein S16
タンパク質・ペプチド: 40S ribosomal protein S18
タンパク質・ペプチド: 40S ribosomal protein S19
タンパク質・ペプチド: 40S ribosomal protein S21
タンパク質・ペプチド: 40S ribosomal protein S15a
タンパク質・ペプチド: 40S ribosomal protein S23
タンパク質・ペプチド: 40S ribosomal protein S24
タンパク質・ペプチド: 40S ribosomal protein S20
タンパク質・ペプチド: 40S ribosomal protein S25
タンパク質・ペプチド: 40S ribosomal protein S27
タンパク質・ペプチド: 40S ribosomal protein S28
タンパク質・ペプチド: 40S ribosomal protein S29
タンパク質・ペプチド: 40S ribosomal protein S30
タンパク質・ペプチド: Ubiquitin-40S ribosomal protein S27a
タンパク質・ペプチド: Receptor of activated protein C kinase 1
タンパク質・ペプチド: Probable RNA-binding protein EIF1AD
タンパク質・ペプチド: Leucine-rich repeat-containing protein 47
タンパク質・ペプチド: Serine/threonine-protein kinase RIO1
リガンド: MAGNESIUM ION
リガンド: ZINC ION
リガンド: ASPARTIC ACID
リガンド: ADENOSINE-5'-TRIPHOSPHATE
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超分子 #1: Cryo-EM structure of a late human pre-40S ribosomal subunit - State H1
超分子
名称: Cryo-EM structure of a late human pre-40S ribosomal subunit - State H1 タイプ: complex / ID: 1 / 親要素: 0 / 含まれる分子: #1-#37 / 詳細: Map filtered at local resolution