+データを開く
-基本情報
登録情報 | データベース: PDB / ID: 8rjb | ||||||||||||
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タイトル | Structure of the rabbit 80S ribosome stalled on a 2-TMD rhodopsin intermediate in complex with Sec61-RAMP4 | ||||||||||||
要素 |
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キーワード | RIBOSOME / Membrane protein / Translocon / Transport | ||||||||||||
機能・相同性 | 機能・相同性情報 L13a-mediated translational silencing of Ceruloplasmin expression / SRP-dependent cotranslational protein targeting to membrane / Major pathway of rRNA processing in the nucleolus and cytosol / Formation of a pool of free 40S subunits / GTP hydrolysis and joining of the 60S ribosomal subunit / Nonsense Mediated Decay (NMD) independent of the Exon Junction Complex (EJC) / Nonsense Mediated Decay (NMD) enhanced by the Exon Junction Complex (EJC) / muscle organ morphogenesis / Insertion of tail-anchored proteins into the endoplasmic reticulum membrane / membrane docking ...L13a-mediated translational silencing of Ceruloplasmin expression / SRP-dependent cotranslational protein targeting to membrane / Major pathway of rRNA processing in the nucleolus and cytosol / Formation of a pool of free 40S subunits / GTP hydrolysis and joining of the 60S ribosomal subunit / Nonsense Mediated Decay (NMD) independent of the Exon Junction Complex (EJC) / Nonsense Mediated Decay (NMD) enhanced by the Exon Junction Complex (EJC) / muscle organ morphogenesis / Insertion of tail-anchored proteins into the endoplasmic reticulum membrane / membrane docking / endoplasmic reticulum Sec complex / pronephric nephron development / positive regulation of growth hormone secretion / cotranslational protein targeting to membrane / Ssh1 translocon complex / Sec61 translocon complex / protein targeting to ER / protein-transporting ATPase activity / protein insertion into ER membrane / positive regulation of organ growth / SRP-dependent cotranslational protein targeting to membrane, translocation / signal sequence binding / post-translational protein targeting to membrane, translocation / insulin secretion / regulation of G1 to G0 transition / exit from mitosis / 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 / protein-DNA complex disassembly / positive regulation of DNA damage response, signal transduction by p53 class mediator resulting in transcription of p21 class mediator / optic nerve development / retinal ganglion cell axon guidance / G1 to G0 transition / cytoplasmic microtubule / positive regulation of signal transduction by p53 class mediator / ubiquitin ligase inhibitor activity / protein transmembrane transporter activity / protein-RNA complex assembly / cellular response to actinomycin D / negative regulation of ubiquitin-dependent protein catabolic process / rough endoplasmic reticulum / endoplasmic reticulum unfolded protein response / maturation of LSU-rRNA / DNA damage response, signal transduction by p53 class mediator resulting in cell cycle arrest / maturation of LSU-rRNA from tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / post-embryonic development / ribosomal large subunit biogenesis / guanyl-nucleotide exchange factor activity / skeletal system development / positive regulation of translation / positive regulation of insulin secretion / cellular response to gamma radiation / phospholipid binding / mRNA 5'-UTR binding / transcription coactivator binding / glucose metabolic process / rRNA processing / antimicrobial humoral immune response mediated by antimicrobial peptide / ribosome binding / regulation of translation / heparin binding / retina development in camera-type eye / 5S rRNA binding / large ribosomal subunit rRNA binding / ribosomal large subunit assembly / cytoplasmic translation / cytosolic large ribosomal subunit / defense response to Gram-negative bacterium / killing of cells of another organism / tRNA binding / postsynaptic density / protein stabilization / rRNA binding / ribosome / structural constituent of ribosome / ribonucleoprotein complex / translation / mRNA binding / ubiquitin protein ligase binding / positive regulation of cell population proliferation / synapse / endoplasmic reticulum membrane / positive regulation of gene expression / nucleolus / negative regulation of transcription by RNA polymerase II / endoplasmic reticulum / RNA binding / nucleoplasm / nucleus / metal ion binding / cytoplasm 類似検索 - 分子機能 | ||||||||||||
生物種 | Bos taurus (ウシ) Canis lupus familiaris (イヌ) Oryctolagus cuniculus (ウサギ) Oryctolagus (哺乳類) Sus scrofa (ブタ) | ||||||||||||
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: 2.69243 Å | ||||||||||||
データ登録者 | Lewis, A.J.O. / Hegde, R.S. | ||||||||||||
資金援助 | 英国, 米国, 3件
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引用 | ジャーナル: Elife / 年: 2024 タイトル: Structural analysis of the dynamic ribosome-translocon complex. 著者: Aaron J O Lewis / Frank Zhong / Robert J Keenan / Ramanujan S Hegde / 要旨: The protein translocon at the endoplasmic reticulum comprises the Sec61 translocation channel and numerous accessory factors that collectively facilitate the biogenesis of secretory and membrane ...The protein translocon at the endoplasmic reticulum comprises the Sec61 translocation channel and numerous accessory factors that collectively facilitate the biogenesis of secretory and membrane proteins. Here, we leveraged recent advances in cryo-electron microscopy (cryo-EM) and structure prediction to derive insights into several novel configurations of the ribosome-translocon complex. We show how a transmembrane domain (TMD) in a looped configuration passes through the Sec61 lateral gate during membrane insertion; how a nascent chain can bind and constrain the conformation of ribosomal protein uL22; and how the translocon-associated protein (TRAP) complex can adjust its position during different stages of protein biogenesis. Most unexpectedly, we find that a large proportion of translocon complexes contains RAMP4 intercalated into Sec61's lateral gate, widening Sec61's central pore and contributing to its hydrophilic interior. These structures lead to mechanistic hypotheses for translocon function and highlight a remarkably plastic machinery whose conformations and composition adjust dynamically to its diverse range of substrates. #1: ジャーナル: Protein Sci / 年: 2018 タイトル: UCSF ChimeraX: Meeting modern challenges in visualization and analysis. 著者: Thomas D Goddard / Conrad C Huang / Elaine C Meng / Eric F Pettersen / Gregory S Couch / John H Morris / Thomas E Ferrin / 要旨: UCSF ChimeraX is next-generation software for the visualization and analysis of molecular structures, density maps, 3D microscopy, and associated data. It addresses challenges in the size, scope, and ...UCSF ChimeraX is next-generation software for the visualization and analysis of molecular structures, density maps, 3D microscopy, and associated data. It addresses challenges in the size, scope, and disparate types of data attendant with cutting-edge experimental methods, while providing advanced options for high-quality rendering (interactive ambient occlusion, reliable molecular surface calculations, etc.) and professional approaches to software design and distribution. This article highlights some specific advances in the areas of visualization and usability, performance, and extensibility. ChimeraX is free for noncommercial use and is available from http://www.rbvi.ucsf.edu/chimerax/ for Windows, Mac, and Linux. #2: ジャーナル: Acta Crystallogr D Struct Biol / 年: 2018 タイトル: ISOLDE: a physically realistic environment for model building into low-resolution electron-density maps. 著者: Tristan Ian Croll / 要旨: This paper introduces ISOLDE, a new software package designed to provide an intuitive environment for high-fidelity interactive remodelling/refinement of macromolecular models into electron-density ...This paper introduces ISOLDE, a new software package designed to provide an intuitive environment for high-fidelity interactive remodelling/refinement of macromolecular models into electron-density maps. ISOLDE combines interactive molecular-dynamics flexible fitting with modern molecular-graphics visualization and established structural biology libraries to provide an immersive interface wherein the model constantly acts to maintain physically realistic conformations as the user interacts with it by directly tugging atoms with a mouse or haptic interface or applying/removing restraints. In addition, common validation tasks are accelerated and visualized in real time. Using the recently described 3.8 Å resolution cryo-EM structure of the eukaryotic minichromosome maintenance (MCM) helicase complex as a case study, it is demonstrated how ISOLDE can be used alongside other modern refinement tools to avoid common pitfalls of low-resolution modelling and improve the quality of the final model. A detailed analysis of changes between the initial and final model provides a somewhat sobering insight into the dangers of relying on a small number of validation metrics to judge the quality of a low-resolution model. #3: ジャーナル: Biochem J / 年: 2021 タイトル: New tools for automated cryo-EM single-particle analysis in RELION-4.0. 著者: Dari Kimanius / Liyi Dong / Grigory Sharov / Takanori Nakane / Sjors H W Scheres / 要旨: We describe new tools for the processing of electron cryo-microscopy (cryo-EM) images in the fourth major release of the RELION software. In particular, we introduce VDAM, a variable-metric gradient ...We describe new tools for the processing of electron cryo-microscopy (cryo-EM) images in the fourth major release of the RELION software. In particular, we introduce VDAM, a variable-metric gradient descent algorithm with adaptive moments estimation, for image refinement; a convolutional neural network for unsupervised selection of 2D classes; and a flexible framework for the design and execution of multiple jobs in pre-defined workflows. In addition, we present a stand-alone utility called MDCatch that links the execution of jobs within this framework with metadata gathering during microscope data acquisition. The new tools are aimed at providing fast and robust procedures for unsupervised cryo-EM structure determination, with potential applications for on-the-fly processing and the development of flexible, high-throughput structure determination pipelines. We illustrate their potential on 12 publicly available cryo-EM data sets. | ||||||||||||
履歴 |
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-構造の表示
構造ビューア | 分子: MolmilJmol/JSmol |
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-ダウンロードとリンク
-ダウンロード
PDBx/mmCIF形式 | 8rjb.cif.gz | 5.7 MB | 表示 | PDBx/mmCIF形式 |
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PDB形式 | pdb8rjb.ent.gz | 表示 | PDB形式 | |
PDBx/mmJSON形式 | 8rjb.json.gz | ツリー表示 | PDBx/mmJSON形式 | |
その他 | その他のダウンロード |
-検証レポート
文書・要旨 | 8rjb_validation.pdf.gz | 1.6 MB | 表示 | wwPDB検証レポート |
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文書・詳細版 | 8rjb_full_validation.pdf.gz | 1.6 MB | 表示 | |
XML形式データ | 8rjb_validation.xml.gz | 213.3 KB | 表示 | |
CIF形式データ | 8rjb_validation.cif.gz | 387.7 KB | 表示 | |
アーカイブディレクトリ | https://data.pdbj.org/pub/pdb/validation_reports/rj/8rjb ftp://data.pdbj.org/pub/pdb/validation_reports/rj/8rjb | HTTPS FTP |
-関連構造データ
関連構造データ | 19195MC 8rjcC 8rjdC 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 (文献) |
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類似構造データ | 類似検索 - 機能・相同性F&H 検索 |
-リンク
-集合体
登録構造単位 |
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-要素
-Protein transport protein Sec61 subunit ... , 3種, 3分子 123
#1: タンパク質 | 分子量: 52279.379 Da / 分子数: 1 / 由来タイプ: 天然 / 由来: (天然) Canis lupus familiaris (イヌ) / 参照: UniProt: P38377 |
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#2: タンパク質 | 分子量: 9987.456 Da / 分子数: 1 / 由来タイプ: 天然 / 由来: (天然) Canis lupus familiaris (イヌ) / 参照: UniProt: P60467 |
#3: タンパク質 | 分子量: 7752.325 Da / 分子数: 1 / 由来タイプ: 天然 / 由来: (天然) Canis lupus familiaris (イヌ) / 参照: UniProt: P60058 |
-タンパク質 , 6種, 6分子 4BDPXm
#4: タンパク質 | 分子量: 7384.762 Da / 分子数: 1 / 由来タイプ: 天然 / 由来: (天然) Canis lupus familiaris (イヌ) / 参照: UniProt: A0A8C0RGL8 |
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#6: タンパク質 | 分子量: 23488.689 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) Bos taurus (ウシ) / 発現宿主: Oryctolagus cuniculus (ウサギ) |
#8: タンパク質 | 分子量: 34481.828 Da / 分子数: 1 / 由来タイプ: 天然 / 由来: (天然) Oryctolagus cuniculus (ウサギ) / 参照: UniProt: G1SYJ6 |
#20: タンパク質 | 分子量: 21444.221 Da / 分子数: 1 / 由来タイプ: 天然 / 由来: (天然) Oryctolagus cuniculus (ウサギ) / 参照: UniProt: G1TVT6 |
#28: タンパク質 | 分子量: 17768.246 Da / 分子数: 1 / 由来タイプ: 天然 / 由来: (天然) Oryctolagus cuniculus (ウサギ) / 参照: UniProt: G1SE76 |
#43: タンパク質 | 分子量: 11699.790 Da / 分子数: 1 / 由来タイプ: 天然 / 由来: (天然) Oryctolagus cuniculus (ウサギ) |
-Ribosomal protein ... , 12種, 12分子 AFNQRUVWYejw
#5: タンパク質 | 分子量: 28088.863 Da / 分子数: 1 / 由来タイプ: 天然 / 由来: (天然) Oryctolagus cuniculus (ウサギ) / 参照: UniProt: G1TT27 |
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#10: タンパク質 | 分子量: 29201.836 Da / 分子数: 1 / 由来タイプ: 天然 / 由来: (天然) Oryctolagus cuniculus (ウサギ) / 参照: UniProt: G1TUB1 |
#18: タンパク質 | 分子量: 24207.285 Da / 分子数: 1 / 由来タイプ: 天然 / 由来: (天然) Oryctolagus cuniculus (ウサギ) / 参照: UniProt: G1T0C1 |
#21: タンパク質 | 分子量: 21568.492 Da / 分子数: 1 / 由来タイプ: 天然 / 由来: (天然) Oryctolagus cuniculus (ウサギ) |
#22: 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) Oryctolagus cuniculus (ウサギ) / 参照: UniProt: G1TJR3 |
#25: 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) Oryctolagus cuniculus (ウサギ) / 参照: UniProt: G1TSG1 |
#26: タンパク質 | 分子量: 14892.505 Da / 分子数: 1 / 由来タイプ: 天然 / 由来: (天然) Oryctolagus cuniculus (ウサギ) / 参照: UniProt: G1T6D1 |
#27: タンパク質 | 分子量: 17825.111 Da / 分子数: 1 / 由来タイプ: 天然 / 由来: (天然) Oryctolagus cuniculus (ウサギ) / 参照: UniProt: G1SE28 |
#29: タンパク質 | 分子量: 17303.363 Da / 分子数: 1 / 由来タイプ: 天然 / 由来: (天然) Oryctolagus cuniculus (ウサギ) / 参照: UniProt: G1SQH0 |
#35: タンパク質 | 分子量: 15898.932 Da / 分子数: 1 / 由来タイプ: 天然 / 由来: (天然) Oryctolagus cuniculus (ウサギ) / 参照: UniProt: G1U437 |
#40: タンパク質 | 分子量: 11111.032 Da / 分子数: 1 / 由来タイプ: 天然 / 由来: (天然) Oryctolagus cuniculus (ウサギ) / 参照: UniProt: U3KPD5 |
#51: タンパク質 | 分子量: 46107.977 Da / 分子数: 1 / 由来タイプ: 天然 / 由来: (天然) Oryctolagus cuniculus (ウサギ) / 参照: UniProt: G1TL06 |
-Large ribosomal subunit protein ... , 2種, 2分子 Cc
#7: タンパク質 | 分子量: 47727.559 Da / 分子数: 1 / 由来タイプ: 天然 / 由来: (天然) Oryctolagus cuniculus (ウサギ) / 参照: UniProt: A0A5F9C3C5 |
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#33: タンパク質 | 分子量: 12807.065 Da / 分子数: 1 / 由来タイプ: 天然 / 由来: (天然) Oryctolagus (哺乳類) / 参照: UniProt: G1TDL2 |
+60S ribosomal protein ... , 24種, 24分子 EGHIJLMOSTZabdfghiklnopr
-RNA鎖 , 4種, 4分子 Kquv
#15: RNA鎖 | 分子量: 1148115.375 Da / 分子数: 1 / 由来タイプ: 天然 / 由来: (天然) Oryctolagus cuniculus (ウサギ) |
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#47: RNA鎖 | 分子量: 24436.551 Da / 分子数: 1 / 由来タイプ: 天然 / 由来: (天然) Sus scrofa (ブタ) |
#49: RNA鎖 | 分子量: 38691.914 Da / 分子数: 1 / 由来タイプ: 天然 / 由来: (天然) Oryctolagus cuniculus (ウサギ) / 参照: GenBank: 4CXE_4 |
#50: RNA鎖 | 分子量: 50143.648 Da / 分子数: 1 / 由来タイプ: 天然 / 由来: (天然) Oryctolagus cuniculus (ウサギ) / 参照: GenBank: 4CXE_3 |
-非ポリマー , 2種, 223分子
#52: 化合物 | ChemComp-MG / #53: 化合物 | ChemComp-ZN / |
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-詳細
研究の焦点であるリガンドがあるか | N |
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-実験情報
-実験
実験 | 手法: 電子顕微鏡法 |
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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: 80S ribosome translating a stalled, two-TMD nascent chain (derived from rhodopsin), and bound to Sec61, the TRAP complex, and RAMP4 タイプ: COMPLEX / 詳細: Sample prepared by in vitro translation / Entity ID: #1-#51 / 由来: NATURAL | ||||||||||||||||||||||||||||||
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分子量 | 実験値: NO | ||||||||||||||||||||||||||||||
由来(天然) | 生物種: Canis lupus familiaris (イヌ) | ||||||||||||||||||||||||||||||
緩衝液 | pH: 7.5 | ||||||||||||||||||||||||||||||
緩衝液成分 |
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試料 | 包埋: NO / シャドウイング: NO / 染色: NO / 凍結: YES | ||||||||||||||||||||||||||||||
試料支持 | グリッドの材料: GOLD / グリッドのサイズ: 300 divisions/in. / グリッドのタイプ: Quantifoil R1.2/1.3 | ||||||||||||||||||||||||||||||
急速凍結 | 装置: FEI VITROBOT MARK IV / 凍結剤: ETHANE / 湿度: 100 % / 凍結前の試料温度: 277 K |
-電子顕微鏡撮影
実験機器 | モデル: Titan Krios / 画像提供: FEI Company |
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顕微鏡 | モデル: FEI TITAN KRIOS |
電子銃 | 電子線源: FIELD EMISSION GUN / 加速電圧: 300 kV / 照射モード: FLOOD BEAM |
電子レンズ | モード: BRIGHT FIELD / 最大 デフォーカス(公称値): 2700 nm / 最小 デフォーカス(公称値): 1900 nm |
撮影 | 電子線照射量: 54 e/Å2 フィルム・検出器のモデル: GATAN K3 BIOQUANTUM (6k x 4k) 撮影したグリッド数: 1 / 実像数: 17540 |
-解析
EMソフトウェア |
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CTF補正 | タイプ: NONE | ||||||||||||||||
3次元再構成 | 解像度: 2.69243 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 140190 / 対称性のタイプ: POINT | ||||||||||||||||
原子モデル構築 | プロトコル: FLEXIBLE FIT / 空間: REAL |