+
データを開く
-
基本情報
登録情報 | データベース: PDB / ID: 8g61 | |||||||||
---|---|---|---|---|---|---|---|---|---|---|
タイトル | mRNA decoding in human is kinetically and structurally distinct from bacteria (AC state) | |||||||||
![]() |
| |||||||||
![]() | RIBOSOME / Human 80S / tRNA / mRNA eEF1A / eIF5A / tRNA selection | |||||||||
機能・相同性 | ![]() embryonic brain development / eukaryotic 80S initiation complex / negative regulation of protein neddylation / negative regulation of endoplasmic reticulum unfolded protein response / oxidized pyrimidine DNA binding / response to TNF agonist / positive regulation of base-excision repair / negative regulation of formation of translation preinitiation complex / regulation of G1 to G0 transition / axial mesoderm development ...embryonic brain development / eukaryotic 80S initiation complex / negative regulation of protein neddylation / negative regulation of endoplasmic reticulum unfolded protein response / oxidized pyrimidine DNA binding / response to TNF agonist / positive regulation of base-excision repair / negative regulation of formation of translation preinitiation complex / regulation of G1 to G0 transition / axial mesoderm development / negative regulation of peptidyl-serine phosphorylation / positive regulation of respiratory burst involved in inflammatory response / ribosomal protein import into nucleus / positive regulation of intrinsic apoptotic signaling pathway in response to DNA damage / positive regulation of intrinsic apoptotic signaling pathway in response to DNA damage by p53 class mediator / regulation of translation involved in cellular response to UV / positive regulation of gastrulation / regulation of adenylate cyclase-activating G protein-coupled receptor signaling pathway / protein-DNA complex disassembly / protein tyrosine kinase inhibitor activity / 90S preribosome assembly / 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 / GAIT complex / A band / positive regulation of DNA damage response, signal transduction by p53 class mediator / supercoiled DNA binding / activation-induced cell death of T cells / TORC2 complex binding / neural crest cell differentiation / alpha-beta T cell differentiation / G1 to G0 transition / NF-kappaB complex / 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 / exit from mitosis / 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 / negative regulation of phagocytosis / erythrocyte homeostasis / rRNA modification in the nucleus and cytosol / optic nerve development / cytoplasmic side of rough endoplasmic reticulum membrane / laminin receptor activity / protein kinase A binding / retinal ganglion cell axon guidance / negative regulation of ubiquitin protein ligase activity / pigmentation / Ribosomal scanning and start codon recognition / ion channel inhibitor activity / homeostatic process / Translation initiation complex formation / response to aldosterone / positive regulation of mitochondrial depolarization / positive regulation of T cell receptor signaling pathway / macrophage chemotaxis / positive regulation of activated T cell proliferation / fibroblast growth factor binding / negative regulation of Wnt signaling pathway / lung morphogenesis / 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 / blastocyst development / cellular response to actinomycin D / 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) / protein localization to nucleus 類似検索 - 分子機能 | |||||||||
生物種 | ![]() ![]() ![]() | |||||||||
手法 | 電子顕微鏡法 / 単粒子再構成法 / クライオ電子顕微鏡法 / 解像度: 2.94 Å | |||||||||
![]() | Holm, M. / Natchiar, K.S. / Rundlet, E.J. / Myasnikov, A.G. / Altman, R.B. / Blanchard, S.C. | |||||||||
資金援助 | 1件
| |||||||||
![]() | ![]() 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. | |||||||||
履歴 |
|
-
構造の表示
構造ビューア | 分子: ![]() ![]() |
---|
-
ダウンロードとリンク
-
ダウンロード
PDBx/mmCIF形式 | ![]() | 4.8 MB | 表示 | ![]() |
---|---|---|---|---|
PDB形式 | ![]() | 表示 | ![]() | |
PDBx/mmJSON形式 | ![]() | ツリー表示 | ![]() | |
その他 | ![]() |
-検証レポート
アーカイブディレクトリ | ![]() ![]() | HTTPS FTP |
---|
-関連構造データ
関連構造データ | ![]() 29760MC ![]() 8g5yC ![]() 8g5zC ![]() 8g60C ![]() 8g6jC ![]() 8glpC M: このデータのモデリングに利用したマップデータ C: 同じ文献を引用 ( |
---|---|
類似構造データ | 類似検索 - 機能・相同性 ![]() |
-
リンク
-
集合体
登録構造単位 | ![]()
|
---|---|
1 |
|
-
要素
-RNA鎖 , 7種, 7分子 S2L8L5L7mRAtPt
#1: RNA鎖 | 分子量: 603580.125 Da / 分子数: 1 / 由来タイプ: 天然 / 由来: (天然) ![]() |
---|---|
#2: RNA鎖 | 分子量: 50171.703 Da / 分子数: 1 / 由来タイプ: 天然 / 由来: (天然) ![]() |
#3: RNA鎖 | 分子量: 1640884.500 Da / 分子数: 1 / 由来タイプ: 天然 / 由来: (天然) ![]() |
#4: RNA鎖 | 分子量: 38691.914 Da / 分子数: 1 / 由来タイプ: 天然 / 由来: (天然) ![]() |
#82: RNA鎖 | 分子量: 19128.443 Da / 分子数: 1 / 由来タイプ: 合成 / 由来: (合成) ![]() |
#83: RNA鎖 | 分子量: 24521.678 Da / 分子数: 1 / 由来タイプ: 天然 / 由来: (天然) ![]() ![]() |
#84: RNA鎖 | 分子量: 24848.943 Da / 分子数: 1 / 由来タイプ: 天然 / 由来: (天然) ![]() ![]() |
+40S ribosomal protein ... , 29種, 29分子 SBSASDSJSESCSGSFSHSWSISQSUSKSOSMSSSdSNSLSRSPSTSVSYSZSaSbSc
-タンパク質 , 7種, 7分子 SXSeSfSgLALm5A
#20: タンパク質 | 分子量: 15860.666 Da / 分子数: 1 / 由来タイプ: 天然 / 由来: (天然) ![]() |
---|---|
#35: タンパク質 | 分子量: 14415.724 Da / 分子数: 1 / 由来タイプ: 天然 / 由来: (天然) ![]() |
#36: タンパク質 | 分子量: 18004.041 Da / 分子数: 1 / 由来タイプ: 天然 / 由来: (天然) ![]() |
#37: タンパク質 | 分子量: 35115.652 Da / 分子数: 1 / 由来タイプ: 天然 / 由来: (天然) ![]() |
#39: タンパク質 | 分子量: 28103.855 Da / 分子数: 1 / 由来タイプ: 天然 / 由来: (天然) ![]() |
#77: タンパク質 | 分子量: 14800.474 Da / 分子数: 1 / 由来タイプ: 天然 / 由来: (天然) ![]() |
#81: タンパク質 | 分子量: 16940.377 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() ![]() |
+60S ribosomal protein ... , 41種, 41分子 LzLBLCLJLHLELGLOLLLVLMLaLNLILDLQLRLSLTLPLULXLYLWLZLrLhLbLFLc...
-非ポリマー , 8種, 362分子 














#85: 化合物 | ChemComp-PUT / #86: 化合物 | ChemComp-K / #87: 化合物 | ChemComp-MG / #88: 化合物 | ChemComp-ANM / | #89: 化合物 | ChemComp-SPD / #90: 化合物 | ChemComp-3H3 / | #91: 化合物 | ChemComp-ZN / #92: 化合物 | ChemComp-MET / | |
---|
-詳細
研究の焦点であるリガンドがあるか | Y |
---|
-実験情報
-実験
実験 | 手法: 電子顕微鏡法 |
---|---|
EM実験 | 試料の集合状態: PARTICLE / 3次元再構成法: 単粒子再構成法 |
-
試料調製
構成要素 | 名称: Human ribosome / タイプ: RIBOSOME / Entity ID: #1-#83 / 由来: NATURAL |
---|---|
由来(天然) | 生物種: ![]() |
緩衝液 | pH: 7 |
試料 | 濃度: 4 mg/ml / 包埋: NO / シャドウイング: NO / 染色: NO / 凍結: YES |
急速凍結 | 装置: FEI VITROBOT MARK IV / 凍結剤: ETHANE / 湿度: 95 % / 凍結前の試料温度: 283 K |
-
電子顕微鏡撮影
実験機器 | ![]() モデル: Titan Krios / 画像提供: FEI Company |
---|---|
顕微鏡 | モデル: FEI TITAN KRIOS |
電子銃 | 電子線源: ![]() |
電子レンズ | モード: BRIGHT FIELD / 最大 デフォーカス(公称値): -1500 nm / 最小 デフォーカス(公称値): -500 nm |
撮影 | 電子線照射量: 79 e/Å2 / フィルム・検出器のモデル: GATAN K3 (6k x 4k) |
-
解析
CTF補正 | タイプ: PHASE FLIPPING ONLY | ||||||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
3次元再構成 | 解像度: 2.94 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 9750 / 対称性のタイプ: POINT | ||||||||||||||||||||||||
原子モデル構築 | プロトコル: OTHER | ||||||||||||||||||||||||
拘束条件 |
|