- EMDB-15674: Cryo-EM structure of the plant 40S subunit -
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基本情報
登録情報
データベース: EMDB / ID: EMD-15674
タイトル
Cryo-EM structure of the plant 40S subunit
マップデータ
The small subunit (40S) of the tobacco ribosome from cytosol
試料
複合体: 40S subunit of the cytosolic 80S ribosome from tobacco
タンパク質・ペプチド: x 33種
RNA: x 2種
リガンド: x 6種
キーワード
Plant / 80S / Modifications / RIBOSOME
機能・相同性
機能・相同性情報
endonucleolytic cleavage to generate mature 3'-end of SSU-rRNA from (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / translation regulator activity / 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) / rescue of stalled ribosome / 90S preribosome / maturation of SSU-rRNA from tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / maturation of SSU-rRNA / small-subunit processome / protein kinase C binding / maintenance of translational fidelity ...endonucleolytic cleavage to generate mature 3'-end of SSU-rRNA from (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / translation regulator activity / 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) / rescue of stalled ribosome / 90S preribosome / maturation of SSU-rRNA from tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / maturation of SSU-rRNA / small-subunit processome / protein kinase C binding / maintenance of translational fidelity / modification-dependent protein catabolic process / rRNA processing / protein tag activity / ribosome binding / ribosomal small subunit biogenesis / ribosomal small subunit assembly / small ribosomal subunit / small ribosomal subunit rRNA binding / cytosolic small ribosomal subunit / cytoplasmic translation / rRNA binding / ribosome / protein ubiquitination / structural constituent of ribosome / ribonucleoprotein complex / translation / positive regulation of protein phosphorylation / mRNA binding / ubiquitin protein ligase binding / nucleolus / RNA binding / zinc ion binding / nucleus / metal ion binding / cytoplasm / cytosol 類似検索 - 分子機能
: / Ribosomal protein S26e signature. / : / 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 S26e signature. / : / 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 S2, eukaryotic / Ribosomal protein S21e / Ribosomal protein S21e superfamily / Ribosomal protein S21e / 40S Ribosomal protein S10 / S27a-like superfamily / Ribosomal protein S10, eukaryotic/archaeal / Plectin/S10, N-terminal / Plectin/S10 domain / Ribosomal protein S25 / S25 ribosomal protein / Ribosomal protein S2, eukaryotic/archaeal / : / Ribosomal protein S17e, conserved site / Ribosomal protein S17e signature. / Ribosomal protein S27a / Ribosomal protein S27a / Ribosomal protein S27a / Ribosomal protein S8e subdomain, eukaryotes / Ribosomal protein S30 / Ribosomal protein S30 / 40S ribosomal protein S29/30S ribosomal protein S14 type Z / Ribosomal protein S7e signature. / Ribosomal protein S3, eukaryotic/archaeal / Ribosomal protein S19e / Ribosomal protein S3Ae, conserved site / Ribosomal protein S19e / Ribosomal protein S3Ae signature. / Ribosomal_S19e / Ribosomal protein S27e signature. / Ribosomal protein S4e, N-terminal, conserved site / Ribosomal protein S4e signature. / 40S ribosomal protein S4, C-terminal domain / 40S ribosomal protein S4 C-terminus / Ribosomal protein S19A/S15e / Ribosomal protein S8e, conserved site / Ribosomal protein S8e signature. / Ribosomal protein S17e / Ribosomal protein S17e-like superfamily / Ribosomal S17 / Ribosomal protein S6, eukaryotic / 40S ribosomal protein S1/3, eukaryotes / Ribosomal protein S4e, N-terminal / RS4NT (NUC023) domain / Ribosomal S24e conserved site / Ribosomal protein S24e signature. / 40S ribosomal protein S11, N-terminal / Ribosomal_S17 N-terminal / Ribosomal protein S7e / Ribosomal protein S7e / Ribosomal protein S4, KOW domain / Ribosomal protein S4e / Ribosomal protein S4e, central region / Ribosomal protein S4e, central domain superfamily / Ribosomal family S4e / Ribosomal protein S27, zinc-binding domain superfamily / Ribosomal protein S24e / Ribosomal protein S23, eukaryotic/archaeal / Ribosomal protein S24e / Ribosomal protein S6/S6e/A/B/2, conserved site / Ribosomal protein S6e signature. / Ribosomal protein S27 / Ribosomal protein S27 / Ribosomal protein S8e / Ribosomal protein S17, archaeal/eukaryotic / Ribosomal protein S3Ae / Ribosomal protein S28e conserved site / Ribosomal S3Ae family / Ribosomal protein S28e signature. / Ribosomal S3Ae family / Ribosomal protein S28e / Ribosomal protein S28e / Ribosomal protein S6e / Ribosomal protein S5/S7, eukaryotic/archaeal / Ribosomal protein S6e / Ribosomal protein S6e / Ribosomal protein S13/S15, N-terminal / Ribosomal protein S15P / Ribosomal S13/S15 N-terminal domain / Ribosomal S13/S15 N-terminal domain / Ribosomal protein S4/S9, eukaryotic/archaeal / Ribosomal protein S8e/ribosomal biogenesis NSA2 / Ribosomal protein S8e / Ribosomal protein S14/S29 / Ribosomal protein L7Ae/L30e/S12e/Gadd45 / Ribosomal protein L7Ae/L30e/S12e/Gadd45 family 類似検索 - ドメイン・相同性
40S ribosomal protein S25 / 40S ribosomal protein S14-2 / 40S ribosomal protein S2-3-like / 40S ribosomal protein S30 / 40S ribosomal protein S20-2 / 40S ribosomal protein S27 / Small ribosomal subunit protein uS2 / 40S ribosomal protein S19-3 / 40S ribosomal protein S18 / 40S ribosomal protein S6 ...40S ribosomal protein S25 / 40S ribosomal protein S14-2 / 40S ribosomal protein S2-3-like / 40S ribosomal protein S30 / 40S ribosomal protein S20-2 / 40S ribosomal protein S27 / Small ribosomal subunit protein uS2 / 40S ribosomal protein S19-3 / 40S ribosomal protein S18 / 40S ribosomal protein S6 / 40S ribosomal protein S7 / 40S ribosomal protein S17-like / 40S ribosomal protein S13 / 40S ribosomal protein S24 / 40S ribosomal protein S21 / Guanine nucleotide-binding protein subunit beta-like protein / 40S ribosomal protein S28 / 40S ribosomal protein S16 / 40S ribosomal protein S12 / 40S ribosomal protein S9-2-like / 40S ribosomal protein S11-like / 40S ribosomal protein S5-like / 40S ribosomal protein S3-2-like / Ubiquitin-40S ribosomal protein S27a-like / 40S ribosomal protein S23 / 40S ribosomal protein S26 / 40S ribosomal protein S8 / 40S ribosomal protein S15a-1 / 40S ribosomal protein S15-like / 40S ribosomal protein S10-1-like / 40S ribosomal protein S29 / 40S ribosomal protein S4 / Small ribosomal subunit protein eS1 類似検索 - 構成要素
ジャーナル: Nat Plants / 年: 2023 タイトル: Structure of the actively translating plant 80S ribosome at 2.2 Å resolution. 著者: Julia Smirnova / Justus Loerke / Gunnar Kleinau / Andrea Schmidt / Jörg Bürger / Etienne H Meyer / Thorsten Mielke / Patrick Scheerer / Ralph Bock / Christian M T Spahn / Reimo Zoschke / 要旨: In plant cells, translation occurs in three compartments: the cytosol, the plastids and the mitochondria. While the structures of the (prokaryotic-type) ribosomes in plastids and mitochondria are ...In plant cells, translation occurs in three compartments: the cytosol, the plastids and the mitochondria. While the structures of the (prokaryotic-type) ribosomes in plastids and mitochondria are well characterized, high-resolution structures of the eukaryotic 80S ribosomes in the cytosol have been lacking. Here the structure of translating tobacco (Nicotiana tabacum) 80S ribosomes was solved by cryo-electron microscopy with a global resolution of 2.2 Å. The ribosome structure includes two tRNAs, decoded mRNA and the nascent peptide chain, thus providing insights into the molecular underpinnings of the cytosolic translation process in plants. The map displays conserved and plant-specific rRNA modifications and the positions of numerous ionic cofactors, and it uncovers the role of monovalent ions in the decoding centre. The model of the plant 80S ribosome enables broad phylogenetic comparisons that reveal commonalities and differences in the ribosomes of plants and those of other eukaryotes, thus putting our knowledge about eukaryotic translation on a firmer footing.