+
データを開く
-
基本情報
登録情報 | データベース: PDB / ID: 9fq0 | |||||||||
---|---|---|---|---|---|---|---|---|---|---|
タイトル | Human NatA-NAC-MAP1 80S ribosome complex | |||||||||
![]() |
| |||||||||
![]() | TRANSLATION / co-translational processing / ribosome associated factor (RAF) / methionine aminopeptidase 2 (MAP2) / N-terminal methionine excision (NME) / N-acetyl-transferase A (NatA) / N-termional acetylation (NTA) / UBA domain / a-solenoid / protein-protein and protein-RNA interactions | |||||||||
機能・相同性 | ![]() negative regulation of maintenance of mitotic sister chromatid cohesion, centromeric / negative regulation of protein localization to endoplasmic reticulum / nascent polypeptide-associated complex / negative regulation of striated muscle cell apoptotic process / regulation of skeletal muscle fiber development / protein-N-terminal-glutamate acetyltransferase activity / N-terminal amino-acid Nalpha-acetyltransferase NatA / positive regulation of cell proliferation involved in heart morphogenesis / N-terminal protein amino acid acetylation / NatA complex ...negative regulation of maintenance of mitotic sister chromatid cohesion, centromeric / negative regulation of protein localization to endoplasmic reticulum / nascent polypeptide-associated complex / negative regulation of striated muscle cell apoptotic process / regulation of skeletal muscle fiber development / protein-N-terminal-glutamate acetyltransferase activity / N-terminal amino-acid Nalpha-acetyltransferase NatA / positive regulation of cell proliferation involved in heart morphogenesis / N-terminal protein amino acid acetylation / NatA complex / positive regulation of skeletal muscle tissue growth / protein N-terminal-serine acetyltransferase activity / protein-N-terminal-alanine acetyltransferase activity / cardiac ventricle development / protein-N-terminal amino-acid acetyltransferase activity / internal protein amino acid acetylation / N-acetyltransferase activity / methionyl aminopeptidase / initiator methionyl aminopeptidase activity / heart trabecula morphogenesis / skeletal muscle tissue regeneration / translation at presynapse / acetyltransferase activator activity / metalloexopeptidase activity / eukaryotic 80S initiation complex / axial mesoderm development / 90S preribosome assembly / TORC2 complex binding / alpha-beta T cell differentiation / middle ear morphogenesis / protein acetylation / metalloaminopeptidase activity / Peptide chain elongation / Selenocysteine synthesis / Formation of a pool of free 40S subunits / Eukaryotic Translation Termination / Response of EIF2AK4 (GCN2) to amino acid deficiency / SRP-dependent cotranslational protein targeting to membrane / Viral mRNA Translation / Nonsense Mediated Decay (NMD) independent of the Exon Junction Complex (EJC) / GTP hydrolysis and joining of the 60S ribosomal subunit / chromosome organization / L13a-mediated translational silencing of Ceruloplasmin expression / aminopeptidase activity / Major pathway of rRNA processing in the nucleolus and cytosol / protein-RNA complex assembly / Nonsense Mediated Decay (NMD) enhanced by the Exon Junction Complex (EJC) / rough endoplasmic reticulum / cytosolic ribosome / ossification / protein maturation / maturation of LSU-rRNA from tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / skeletal system development / wound healing / sensory perception of sound / Regulation of expression of SLITs and ROBOs / platelet aggregation / cytoplasmic ribonucleoprotein granule / Inactivation, recovery and regulation of the phototransduction cascade / protein transport / presynapse / large ribosomal subunit / heparin binding / regulation of translation / ribosome binding / cell body / angiogenesis / transcription regulator complex / cytosolic large ribosomal subunit / in utero embryonic development / cytoplasmic translation / cell differentiation / transcription coactivator activity / postsynaptic density / protein stabilization / rRNA binding / nuclear body / structural constituent of ribosome / cadherin binding / translation / ribonucleoprotein complex / focal adhesion / mRNA binding / intracellular membrane-bounded organelle / dendrite / synapse / negative regulation of apoptotic process / regulation of DNA-templated transcription / positive regulation of DNA-templated transcription / nucleolus / glutamatergic synapse / endoplasmic reticulum / negative regulation of transcription by RNA polymerase II / positive regulation of transcription by RNA polymerase II / proteolysis / DNA binding / RNA binding / extracellular exosome / zinc ion binding / identical protein binding 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: 4.67 Å | |||||||||
![]() | Klein, M.A. / Wild, K. / Sinning, I. | |||||||||
資金援助 | ![]()
| |||||||||
![]() | ![]() タイトル: Multi-protein assemblies orchestrate co-translational enzymatic processing on the human ribosome. 著者: Marius Klein / Klemens Wild / Irmgard Sinning / ![]() 要旨: Nascent chains undergo co-translational enzymatic processing as soon as their N-terminus becomes accessible at the ribosomal polypeptide tunnel exit (PTE). In eukaryotes, N-terminal methionine ...Nascent chains undergo co-translational enzymatic processing as soon as their N-terminus becomes accessible at the ribosomal polypeptide tunnel exit (PTE). In eukaryotes, N-terminal methionine excision (NME) by Methionine Aminopeptidases (MAP1 and MAP2), and N-terminal acetylation (NTA) by N-Acetyl-Transferase A (NatA), is the most common combination of subsequent modifications carried out on the 80S ribosome. How these enzymatic processes are coordinated in the context of a rapidly translating ribosome has remained elusive. Here, we report two cryo-EM structures of multi-enzyme complexes assembled on vacant human 80S ribosomes, indicating two routes for NME-NTA. Both assemblies form on the 80S independent of nascent chain substrates. Irrespective of the route, NatA occupies a non-intrusive 'distal' binding site on the ribosome which does not interfere with MAP1 or MAP2 binding nor with most other ribosome-associated factors (RAFs). NatA can partake in a coordinated, dynamic assembly with MAP1 through the hydra-like chaperoning function of the abundant Nascent Polypeptide-Associated Complex (NAC). In contrast to MAP1, MAP2 completely covers the PTE and is thus incompatible with NAC and MAP1 recruitment. Together, our data provide the structural framework for the coordinated orchestration of NME and NTA in protein biogenesis. | |||||||||
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 | ![]() | 805.3 KB | 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
文書・要旨 | ![]() | 1.9 MB | 表示 | ![]() |
---|---|---|---|---|
文書・詳細版 | ![]() | 2 MB | 表示 | |
XML形式データ | ![]() | 128.4 KB | 表示 | |
CIF形式データ | ![]() | 193.1 KB | 表示 | |
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 | ![]() 50642MC ![]() 9fpzC 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 , 2種, 2分子 81
#1: RNA鎖 | 分子量: 18646.127 Da / 分子数: 1 / 由来タイプ: 天然 / 由来: (天然) ![]() |
---|---|
#4: RNA鎖 | 分子量: 1640222.125 Da / 分子数: 1 / 由来タイプ: 天然 / 由来: (天然) ![]() |
-タンパク質 , 3種, 3分子 EDA
#2: タンパク質 | 分子量: 43717.605 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() ![]() |
---|---|
#3: タンパク質 | 分子量: 22201.000 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() 発現宿主: ![]() ![]() 参照: UniProt: P20290 |
#8: タンパク質 | 分子量: 23849.252 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() 発現宿主: ![]() ![]() 参照: UniProt: Q13765 |
-Large ribosomal subunit protein ... , 2種, 2分子 LYLE
#5: タンパク質 | 分子量: 17289.338 Da / 分子数: 1 / 由来タイプ: 天然 / 由来: (天然) ![]() |
---|---|
#15: タンパク質 | 分子量: 32810.176 Da / 分子数: 1 / 由来タイプ: 天然 / 由来: (天然) ![]() |
-60S ribosomal protein ... , 7種, 7分子 LhLXLULRLkLCLr
#6: タンパク質 | 分子量: 14593.624 Da / 分子数: 1 / 由来タイプ: 天然 / 由来: (天然) ![]() |
---|---|
#7: タンパク質 | 分子量: 17740.193 Da / 分子数: 1 / 由来タイプ: 天然 / 由来: (天然) ![]() |
#9: タンパク質 | 分子量: 14813.015 Da / 分子数: 1 / 由来タイプ: 天然 / 由来: (天然) ![]() |
#10: タンパク質 | 分子量: 23535.281 Da / 分子数: 1 / 由来タイプ: 天然 / 由来: (天然) ![]() |
#11: タンパク質 | 分子量: 8238.948 Da / 分子数: 1 / 由来タイプ: 天然 / 由来: (天然) ![]() |
#14: タンパク質 | 分子量: 47804.621 Da / 分子数: 1 / 由来タイプ: 天然 / 由来: (天然) ![]() |
#16: タンパク質 | 分子量: 15784.622 Da / 分子数: 1 / 由来タイプ: 天然 詳細: SAHLQWMVVRNCSSFLIKRNKQTYSTEPNNLKARNSFRYNGLIHRKTVGVEPAADGKGVVVVIKRRSGQRKPATSYVRTTINKNARATLSSIRHMIRKN 由来: (天然) ![]() |
-N-alpha-acetyltransferase ... , 2種, 2分子 2B
#12: タンパク質 | 分子量: 20003.795 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() 発現宿主: ![]() ![]() 参照: UniProt: P41227, N-terminal amino-acid Nalpha-acetyltransferase NatA |
---|---|
#13: タンパク質 | 分子量: 98658.648 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() 発現宿主: ![]() ![]() 参照: UniProt: Q9BXJ9 |
-非ポリマー , 1種, 1分子 
#17: 化合物 | ChemComp-IHP / |
---|
-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 NatA-NAC-MAP1 80S ribosome complex / タイプ: COMPLEX / Entity ID: #1-#16 / 由来: NATURAL |
---|---|
由来(天然) | 生物種: ![]() |
緩衝液 | pH: 7.5 |
試料 | 包埋: NO / シャドウイング: NO / 染色: NO / 凍結: YES |
急速凍結 | 凍結剤: ETHANE |
-
電子顕微鏡撮影
顕微鏡 | モデル: TFS GLACIOS |
---|---|
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): 1700 nm / 最小 デフォーカス(公称値): 700 nm |
撮影 | 電子線照射量: 53.97 e/Å2 フィルム・検出器のモデル: FEI FALCON III (4k x 4k) |
-
解析
EMソフトウェア | 名称: PHENIX / バージョン: 1.21_5207: / カテゴリ: モデル精密化 |
---|---|
CTF補正 | タイプ: PHASE FLIPPING AND AMPLITUDE CORRECTION |
3次元再構成 | 解像度: 4.67 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 24116 / 対称性のタイプ: POINT |