- EMDB-40205: mRNA decoding in human is kinetically and structurally distinct f... -
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基本情報
登録情報
データベース: EMDB / ID: EMD-40205
タイトル
mRNA decoding in human is kinetically and structurally distinct from bacteria (Consensus LSU focused refined structure)
マップデータ
Refine3D map Trefoil, Tetrafoil, and Magnification anisotropy corrected
試料
複合体: Human ribosome
RNA: x 5種
タンパク質・ペプチド: x 75種
RNA: x 1種
リガンド: x 10種
キーワード
Human 80S / tRNA / mRNA tRNA selection / RIBOSOME
機能・相同性
機能・相同性情報
embryonic brain development / translation at presynapse / exit from mitosis / optic nerve development / regulation of translation involved in cellular response to UV / eukaryotic 80S initiation complex / negative regulation of formation of translation preinitiation complex / axial mesoderm development / negative regulation of endoplasmic reticulum unfolded protein response / ribosomal protein import into nucleus ...embryonic brain development / translation at presynapse / exit from mitosis / optic nerve development / regulation of translation involved in cellular response to UV / eukaryotic 80S initiation complex / negative regulation of formation of translation preinitiation complex / axial mesoderm development / negative regulation of endoplasmic reticulum unfolded protein response / ribosomal protein import into nucleus / regulation of G1 to G0 transition / retinal ganglion cell axon guidance / oxidized pyrimidine DNA binding / response to TNF agonist / positive regulation of base-excision repair / protein-DNA complex disassembly / positive regulation of ubiquitin-protein transferase activity / positive regulation of respiratory burst involved in inflammatory response / positive regulation of intrinsic apoptotic signaling pathway in response to DNA damage by p53 class mediator / positive regulation of gastrulation / positive regulation of intrinsic apoptotic signaling pathway in response to DNA damage / protein tyrosine kinase inhibitor activity / 90S preribosome assembly / IRE1-RACK1-PP2A complex / positive regulation of Golgi to plasma membrane protein transport / nucleolus organization / alpha-beta T cell differentiation / positive regulation of DNA-templated transcription initiation / TNFR1-mediated ceramide production / positive regulation of DNA damage response, signal transduction by p53 class mediator / GAIT complex / negative regulation of RNA splicing / TORC2 complex binding / neural crest cell differentiation / supercoiled DNA binding / NF-kappaB complex / negative regulation of DNA repair / G1 to G0 transition / cytoplasmic translational initiation / oxidized purine DNA binding / cysteine-type endopeptidase activator activity involved in apoptotic process / middle ear morphogenesis / negative regulation of intrinsic apoptotic signaling pathway in response to hydrogen peroxide / rRNA modification in the nucleus and cytosol / negative regulation of bicellular tight junction assembly / ubiquitin-like protein conjugating enzyme binding / regulation of establishment of cell polarity / negative regulation of phagocytosis / Formation of the ternary complex, and subsequently, the 43S complex / erythrocyte homeostasis / cytoplasmic side of rough endoplasmic reticulum membrane / protein kinase A binding / Ribosomal scanning and start codon recognition / ion channel inhibitor activity / laminin receptor activity / Translation initiation complex formation / homeostatic process / pigmentation / positive regulation of mitochondrial depolarization / macrophage chemotaxis / lung morphogenesis / negative regulation of Wnt signaling pathway / positive regulation of natural killer cell proliferation / fibroblast growth factor binding / monocyte chemotaxis / BH3 domain binding / Protein hydroxylation / negative regulation of translational frameshifting / SARS-CoV-1 modulates host translation machinery / regulation of adenylate cyclase-activating G protein-coupled receptor signaling pathway / TOR signaling / positive regulation of GTPase activity / iron-sulfur cluster binding / mTORC1-mediated signalling / Peptide chain elongation / regulation of cell division / Selenocysteine synthesis / Formation of a pool of free 40S subunits / cellular response to ethanol / blastocyst development / Eukaryotic Translation Termination / positive regulation of intrinsic apoptotic signaling pathway by p53 class mediator / SRP-dependent cotranslational protein targeting to membrane / Response of EIF2AK4 (GCN2) to amino acid deficiency / negative regulation of protein binding / protein serine/threonine kinase inhibitor activity / Viral mRNA Translation / ubiquitin ligase inhibitor activity / negative regulation of respiratory burst involved in inflammatory response / Nonsense Mediated Decay (NMD) independent of the Exon Junction Complex (EJC) / endonucleolytic cleavage to generate mature 3'-end of SSU-rRNA from (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / positive regulation of signal transduction by p53 class mediator / GTP hydrolysis and joining of the 60S ribosomal subunit / protein localization to nucleus / negative regulation of ubiquitin-dependent protein catabolic process / L13a-mediated translational silencing of Ceruloplasmin expression / Major pathway of rRNA processing in the nucleolus and cytosol / protein targeting / regulation of translational fidelity / positive regulation of microtubule polymerization 類似検索 - 分子機能
40S ribosomal protein SA / Ribosomal protein L6, N-terminal / 40S ribosomal protein SA, C-terminal domain / Ribosomal protein L6, N-terminal domain / 40S ribosomal protein SA C-terminus / Ubiquitin-like protein FUBI / Ribosomal protein L30e / Ribosomal L15/L27a, N-terminal / Ribosomal protein L28e / : ...40S ribosomal protein SA / Ribosomal protein L6, N-terminal / 40S ribosomal protein SA, C-terminal domain / Ribosomal protein L6, N-terminal domain / 40S ribosomal protein SA C-terminus / Ubiquitin-like protein FUBI / Ribosomal protein L30e / Ribosomal L15/L27a, N-terminal / Ribosomal protein L28e / : / Ribosomal protein L23 / Ribosomal L28e/Mak16 / Ribosomal L28e protein family / metallochaperone-like domain / TRASH domain / : / Ribosomal protein S26e signature. / Ribosomal protein L41 / Ribosomal protein L41 / Ribosomal protein S21e, conserved site / Ribosomal protein S21e signature. / Ribosomal protein L13e, conserved site / Ribosomal protein L13e signature. / : / Ribosomal protein S12e signature. / Ribosomal protein S26e / Ribosomal protein S26e superfamily / Ribosomal protein S26e / Ribosomal protein S12e / Ribosomal protein L29e / Ribosomal L29e protein family / Small (40S) ribosomal subunit Asc1/RACK1 / Ribosomal protein S5, eukaryotic/archaeal / Ribosomal protein L27e, conserved site / Ribosomal protein L27e signature. / Ribosomal protein L22e / Ribosomal protein L22e superfamily / Ribosomal L22e protein family / Ribosomal protein S21e / Ribosomal protein S21e superfamily / Ribosomal protein S21e / Ribosomal protein L13e / Ribosomal protein L13e / Ribosomal protein S19e, conserved site / Ribosomal protein S19e signature. / Ribosomal protein S2, eukaryotic / Ribosomal protein L38e / Ribosomal protein L38e superfamily / Ribosomal L38e protein family / S27a-like superfamily / Ribosomal protein L19, eukaryotic / Ribosomal protein L10e, conserved site / : / Ribosomal protein L10e signature. / Ribosomal protein L19/L19e conserved site / Ribosomal protein L19e signature. / Ribosomal protein L6e signature. / Ribosomal protein L44e signature. / 40S Ribosomal protein S10 / 60S ribosomal protein L18a/ L20, eukaryotes / Ribosomal protein L10e / Ribosomal protein L24e, conserved site / Ribosomal protein L24e signature. / Plectin/S10, N-terminal / Plectin/S10 domain / Ribosomal protein L18/L18-A/B/e, conserved site / Ribosomal protein L18e signature. / Ribosomal protein L34e, conserved site / Ribosomal protein L34e signature. / Ribosomal protein L5 eukaryotic, C-terminal / Ribosomal L18 C-terminal region / Ribosomal protein S30 / Ribosomal protein S30 / Ribosomal protein S10, eukaryotic/archaeal / Ribosomal protein S27a / : / Ribosomal protein S27a / Ribosomal protein S27a / Ribosomal protein L23/L25, N-terminal / Ribosomal protein L23, N-terminal domain / : / Ribosomal protein S7e signature. / Ribosomal protein S8e subdomain, eukaryotes / Ribosomal protein L30e signature 1. / Ribosomal protein L36e signature. / Ribosomal protein S25 / S25 ribosomal protein / Ribosomal protein L44e / Ribosomal protein L44 / 50S ribosomal protein L18Ae/60S ribosomal protein L20 and L18a / Ribosomal protein L35Ae, conserved site / Ribosomal protein 50S-L18Ae/60S-L20/60S-L18A / Ribosomal proteins 50S-L18Ae/60S-L20/60S-L18A / Ribosomal protein 60S L18 and 50S L18e / Ribosomal protein L35Ae signature. / Ribosomal protein S17e, conserved site / Eukaryotic Ribosomal Protein L27, KOW domain / Ribosomal protein S17e signature. / Ribosomal protein L27e / Ribosomal protein L27e superfamily 類似検索 - ドメイン・相同性
Ribosomal protein L36a / Small ribosomal subunit protein eS17 / Small ribosomal subunit protein uS2 / Small ribosomal subunit protein uS5 / Large ribosomal subunit protein eL33 / Large ribosomal subunit protein uL30 / Large ribosomal subunit protein uL22 / Small ribosomal subunit protein uS3 / Small ribosomal subunit protein eS12 / Large ribosomal subunit protein eL13 ...Ribosomal protein L36a / Small ribosomal subunit protein eS17 / Small ribosomal subunit protein uS2 / Small ribosomal subunit protein uS5 / Large ribosomal subunit protein eL33 / Large ribosomal subunit protein uL30 / Large ribosomal subunit protein uL22 / Small ribosomal subunit protein uS3 / Small ribosomal subunit protein eS12 / Large ribosomal subunit protein eL13 / Large ribosomal subunit protein uL16 / Large ribosomal subunit protein uL6 / Large ribosomal subunit protein eL22 / Large ribosomal subunit protein uL4 / Small ribosomal subunit protein eS19 / Large ribosomal subunit protein uL3 / Large ribosomal subunit protein uL13 / Small ribosomal subunit protein eS27 / Large ribosomal subunit protein uL29 / Large ribosomal subunit protein uL15 / Large ribosomal subunit protein uL18 / Large ribosomal subunit protein eL21 / Large ribosomal subunit protein eL28 / Small ribosomal subunit protein uS4 / Small ribosomal subunit protein uS7 / Small ribosomal subunit protein eS10 / Large ribosomal subunit protein eL29 / Large ribosomal subunit protein eL34 / Large ribosomal subunit protein eL14 / Small ribosomal subunit protein uS10 / Small ribosomal subunit protein eS1 / Large ribosomal subunit protein uL24 / Large ribosomal subunit protein eL15 / Large ribosomal subunit protein eL27 / Large ribosomal subunit protein eL43 / Large ribosomal subunit protein eL37 / 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 uS13 / Small ribosomal subunit protein uS14 / Small ribosomal subunit protein uS15 / Small ribosomal subunit protein uS17 / Large ribosomal subunit protein eL8 / Small ribosomal subunit protein eS4, X isoform / Large ribosomal subunit protein uL23 / Small ribosomal subunit protein eS6 / Large ribosomal subunit protein uL14 / 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 / Large ribosomal subunit protein eL30 / Large ribosomal subunit protein eL39 / Large ribosomal subunit protein eL31 / Large ribosomal subunit protein eL32 / Large ribosomal subunit protein uL5 / Small ribosomal subunit protein eS32 / Ubiquitin-ribosomal protein eS31 fusion protein / Large ribosomal subunit protein eL38 / Small ribosomal subunit protein eS21 / Small ribosomal subunit protein RACK1 / Large ribosomal subunit protein eL24 / Large ribosomal subunit protein eL19 / Large ribosomal subunit protein eL20 / Large ribosomal subunit protein eL6 / Large ribosomal subunit protein eL18 / Large ribosomal subunit protein eL36 類似検索 - 構成要素
ジャーナル: Nature / 年: 2023 タイトル: mRNA decoding in human is kinetically and structurally distinct from bacteria. 著者: Mikael Holm / S Kundhavai Natchiar / Emily J Rundlet / Alexander G Myasnikov / Zoe L Watson / Roger B Altman / Hao-Yuan Wang / Jack Taunton / Scott C Blanchard / 要旨: In all species, ribosomes synthesize proteins by faithfully decoding messenger RNA (mRNA) nucleotide sequences using aminoacyl-tRNA substrates. Current knowledge of the decoding mechanism derives ...In all species, ribosomes synthesize proteins by faithfully decoding messenger RNA (mRNA) nucleotide sequences using aminoacyl-tRNA substrates. Current knowledge of the decoding mechanism derives principally from studies on bacterial systems. Although key features are conserved across evolution, eukaryotes achieve higher-fidelity mRNA decoding than bacteria. In human, changes in decoding fidelity are linked to ageing and disease and represent a potential point of therapeutic intervention in both viral and cancer treatment. Here we combine single-molecule imaging and cryogenic electron microscopy methods to examine the molecular basis of human ribosome fidelity to reveal that the decoding mechanism is both kinetically and structurally distinct from that of bacteria. Although decoding is globally analogous in both species, the reaction coordinate of aminoacyl-tRNA movement is altered on the human ribosome and the process is an order of magnitude slower. These distinctions arise from eukaryote-specific structural elements in the human ribosome and in the elongation factor eukaryotic elongation factor 1A (eEF1A) that together coordinate faithful tRNA incorporation at each mRNA codon. The distinct nature and timing of conformational changes within the ribosome and eEF1A rationalize how increased decoding fidelity is achieved and potentially regulated in eukaryotic species.