+データを開く
-基本情報
登録情報 | データベース: PDB / ID: 7s1g | ||||||||||||||||||||||||||||||||||||
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タイトル | wild-type Escherichia coli stalled ribosome with antibiotic linezolid | ||||||||||||||||||||||||||||||||||||
要素 |
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キーワード | RIBOSOME/ANTIBIOTIC / Escherichia coli stalled ribosome / oxazolidinone / linezolid / RIBOSOME-ANTIBIOTIC complex | ||||||||||||||||||||||||||||||||||||
機能・相同性 | 機能・相同性情報 positive regulation of ribosome biogenesis / DnaA-L2 complex / negative regulation of DNA-templated DNA replication initiation / assembly of large subunit precursor of preribosome / cytosolic ribosome assembly / regulation of cell growth / mRNA 5'-UTR binding / small ribosomal subunit rRNA binding / large ribosomal subunit / ribosome binding ...positive regulation of ribosome biogenesis / DnaA-L2 complex / negative regulation of DNA-templated DNA replication initiation / assembly of large subunit precursor of preribosome / cytosolic ribosome assembly / regulation of cell growth / mRNA 5'-UTR binding / small ribosomal subunit rRNA binding / large ribosomal subunit / ribosome binding / ribosomal small subunit assembly / small ribosomal subunit / 5S rRNA binding / transferase activity / cytosolic small ribosomal subunit / ribosomal large subunit assembly / cytoplasmic translation / cytosolic large ribosomal subunit / tRNA binding / negative regulation of translation / rRNA binding / ribosome / structural constituent of ribosome / ribonucleoprotein complex / translation / mRNA binding / RNA binding / zinc ion binding / membrane / metal ion binding / cytosol / cytoplasm 類似検索 - 分子機能 | ||||||||||||||||||||||||||||||||||||
生物種 | Escherichia coli (大腸菌) | ||||||||||||||||||||||||||||||||||||
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: 2.48 Å | ||||||||||||||||||||||||||||||||||||
データ登録者 | Young, I.D. / Stojkovic, V. / Tsai, K. / Lee, D.J. / Fraser, J.S. / Galonic Fujimori, D. | ||||||||||||||||||||||||||||||||||||
資金援助 | 11件
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引用 | ジャーナル: Nat Struct Mol Biol / 年: 2022 タイトル: Structural basis for context-specific inhibition of translation by oxazolidinone antibiotics. 著者: Kaitlyn Tsai / Vanja Stojković / D John Lee / Iris D Young / Teresa Szal / Dorota Klepacki / Nora Vázquez-Laslop / Alexander S Mankin / James S Fraser / Danica Galonić Fujimori / 要旨: The antibiotic linezolid, the first clinically approved member of the oxazolidinone class, inhibits translation of bacterial ribosomes by binding to the peptidyl transferase center. Recent work has ...The antibiotic linezolid, the first clinically approved member of the oxazolidinone class, inhibits translation of bacterial ribosomes by binding to the peptidyl transferase center. Recent work has demonstrated that linezolid does not inhibit peptide bond formation at all sequences but rather acts in a context-specific manner, namely when alanine occupies the penultimate position of the nascent chain. However, the molecular basis for context-specificity has not been elucidated. Here we show that the second-generation oxazolidinone radezolid also induces stalling with a penultimate alanine, and we determine high-resolution cryo-EM structures of linezolid- and radezolid-stalled ribosome complexes to explain their mechanism of action. These structures reveal that the alanine side chain fits within a small hydrophobic crevice created by oxazolidinone, resulting in improved ribosome binding. Modification of the ribosome by the antibiotic resistance enzyme Cfr disrupts stalling due to repositioning of the modified nucleotide. Together, our findings provide molecular understanding for the context-specificity of oxazolidinones. #1: ジャーナル: Acta Crystallogr D Struct Biol / 年: 2019 タイトル: Macromolecular structure determination using X-rays, neutrons and electrons: recent developments in Phenix. 著者: Dorothee Liebschner / Pavel V Afonine / Matthew L Baker / Gábor Bunkóczi / Vincent B Chen / Tristan I Croll / Bradley Hintze / Li Wei Hung / Swati Jain / Airlie J McCoy / Nigel W Moriarty / ...著者: Dorothee Liebschner / Pavel V Afonine / Matthew L Baker / Gábor Bunkóczi / Vincent B Chen / Tristan I Croll / Bradley Hintze / Li Wei Hung / Swati Jain / Airlie J McCoy / Nigel W Moriarty / Robert D Oeffner / Billy K Poon / Michael G Prisant / Randy J Read / Jane S Richardson / David C Richardson / Massimo D Sammito / Oleg V Sobolev / Duncan H Stockwell / Thomas C Terwilliger / Alexandre G Urzhumtsev / Lizbeth L Videau / Christopher J Williams / Paul D Adams / 要旨: Diffraction (X-ray, neutron and electron) and electron cryo-microscopy are powerful methods to determine three-dimensional macromolecular structures, which are required to understand biological ...Diffraction (X-ray, neutron and electron) and electron cryo-microscopy are powerful methods to determine three-dimensional macromolecular structures, which are required to understand biological processes and to develop new therapeutics against diseases. The overall structure-solution workflow is similar for these techniques, but nuances exist because the properties of the reduced experimental data are different. Software tools for structure determination should therefore be tailored for each method. Phenix is a comprehensive software package for macromolecular structure determination that handles data from any of these techniques. Tasks performed with Phenix include data-quality assessment, map improvement, model building, the validation/rebuilding/refinement cycle and deposition. Each tool caters to the type of experimental data. The design of Phenix emphasizes the automation of procedures, where possible, to minimize repetitive and time-consuming manual tasks, while default parameters are chosen to encourage best practice. A graphical user interface provides access to many command-line features of Phenix and streamlines the transition between programs, project tracking and re-running of previous tasks. #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: Acta Crystallogr D Biol Crystallogr / 年: 2010 タイトル: Features and development of Coot. 著者: P Emsley / B Lohkamp / W G Scott / K Cowtan / 要旨: Coot is a molecular-graphics application for model building and validation of biological macromolecules. The program displays electron-density maps and atomic models and allows model manipulations ...Coot is a molecular-graphics application for model building and validation of biological macromolecules. The program displays electron-density maps and atomic models and allows model manipulations such as idealization, real-space refinement, manual rotation/translation, rigid-body fitting, ligand search, solvation, mutations, rotamers and Ramachandran idealization. Furthermore, tools are provided for model validation as well as interfaces to external programs for refinement, validation and graphics. The software is designed to be easy to learn for novice users, which is achieved by ensuring that tools for common tasks are 'discoverable' through familiar user-interface elements (menus and toolbars) or by intuitive behaviour (mouse controls). Recent developments have focused on providing tools for expert users, with customisable key bindings, extensions and an extensive scripting interface. The software is under rapid development, but has already achieved very widespread use within the crystallographic community. The current state of the software is presented, with a description of the facilities available and of some of the underlying methods employed. #4: ジャーナル: Protein Sci / 年: 2021 タイトル: UCSF ChimeraX: Structure visualization for researchers, educators, and developers. 著者: Eric F Pettersen / Thomas D Goddard / Conrad C Huang / Elaine C Meng / Gregory S Couch / Tristan I Croll / John H Morris / Thomas E Ferrin / 要旨: UCSF ChimeraX is the next-generation interactive visualization program from the Resource for Biocomputing, Visualization, and Informatics (RBVI), following UCSF Chimera. ChimeraX brings (a) ...UCSF ChimeraX is the next-generation interactive visualization program from the Resource for Biocomputing, Visualization, and Informatics (RBVI), following UCSF Chimera. ChimeraX brings (a) significant performance and graphics enhancements; (b) new implementations of Chimera's most highly used tools, many with further improvements; (c) several entirely new analysis features; (d) support for new areas such as virtual reality, light-sheet microscopy, and medical imaging data; (e) major ease-of-use advances, including toolbars with icons to perform actions with a single click, basic "undo" capabilities, and more logical and consistent commands; and (f) an app store for researchers to contribute new tools. ChimeraX includes full user documentation and is free for noncommercial use, with downloads available for Windows, Linux, and macOS from https://www.rbvi.ucsf.edu/chimerax. | ||||||||||||||||||||||||||||||||||||
履歴 |
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-構造の表示
ムービー |
ムービービューア |
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構造ビューア | 分子: MolmilJmol/JSmol |
-ダウンロードとリンク
-ダウンロード
PDBx/mmCIF形式 | 7s1g.cif.gz | 4.9 MB | 表示 | PDBx/mmCIF形式 |
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PDB形式 | pdb7s1g.ent.gz | 表示 | PDB形式 | |
PDBx/mmJSON形式 | 7s1g.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 | 7s1g_validation.pdf.gz | 1.4 MB | 表示 | wwPDB検証レポート |
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文書・詳細版 | 7s1g_full_validation.pdf.gz | 1.5 MB | 表示 | |
XML形式データ | 7s1g_validation.xml.gz | 198.8 KB | 表示 | |
CIF形式データ | 7s1g_validation.cif.gz | 347.7 KB | 表示 | |
アーカイブディレクトリ | https://data.pdbj.org/pub/pdb/validation_reports/s1/7s1g ftp://data.pdbj.org/pub/pdb/validation_reports/s1/7s1g | HTTPS FTP |
-関連構造データ
-リンク
-集合体
登録構造単位 |
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-要素
-30S ribosomal protein ... , 20種, 20分子 123DEFGHnopqrtuvwxyz
#1: タンパク質 | 分子量: 10455.355 Da / 分子数: 1 / 由来タイプ: 天然 / 由来: (天然) Escherichia coli (大腸菌) / 参照: UniProt: D7Z9F9 |
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#2: タンパク質 | 分子量: 9708.464 Da / 分子数: 1 / 由来タイプ: 天然 / 由来: (天然) Escherichia coli (大腸菌) / 参照: UniProt: D7ZAS2 |
#3: タンパク質 | 分子量: 8524.039 Da / 分子数: 1 / 由来タイプ: 天然 / 由来: (天然) Escherichia coli (大腸菌) / 参照: UniProt: A0A0E2L2J1 |
#7: タンパク質 | 分子量: 26652.557 Da / 分子数: 1 / 由来タイプ: 天然 / 由来: (天然) Escherichia coli (大腸菌) / 参照: UniProt: D7ZK99 |
#8: タンパク質 | 分子量: 26031.316 Da / 分子数: 1 / 由来タイプ: 天然 / 由来: (天然) Escherichia coli (大腸菌) / 参照: UniProt: B7MCS9 |
#9: タンパク質 | 分子量: 23514.199 Da / 分子数: 1 / 由来タイプ: 天然 / 由来: (天然) Escherichia coli (大腸菌) / 参照: UniProt: D7Z9H7 |
#10: タンパク質 | 分子量: 17629.398 Da / 分子数: 1 / 由来タイプ: 天然 / 由来: (天然) Escherichia coli (大腸菌) / 参照: UniProt: D7Z9H2 |
#11: タンパク質 | 分子量: 15727.512 Da / 分子数: 1 / 由来タイプ: 天然 / 由来: (天然) Escherichia coli (大腸菌) / 参照: UniProt: P02358 |
#43: タンパク質 | 分子量: 20055.156 Da / 分子数: 1 / 由来タイプ: 天然 / 由来: (天然) Escherichia coli (大腸菌) / 参照: UniProt: P02359 |
#44: タンパク質 | 分子量: 14146.557 Da / 分子数: 1 / 由来タイプ: 天然 / 由来: (天然) Escherichia coli (大腸菌) / 参照: UniProt: D7Z9G9 |
#45: タンパク質 | 分子量: 14886.270 Da / 分子数: 1 / 由来タイプ: 天然 / 由来: (天然) Escherichia coli (大腸菌) / 参照: UniProt: D7ZES9 |
#46: タンパク質 | 分子量: 11755.597 Da / 分子数: 1 / 由来タイプ: 天然 / 由来: (天然) Escherichia coli (大腸菌) / 参照: UniProt: D7Z9F4 |
#47: タンパク質 | 分子量: 13870.975 Da / 分子数: 1 / 由来タイプ: 天然 / 由来: (天然) Escherichia coli (大腸菌) / 参照: UniProt: B7MCR3 |
#49: タンパク質 | 分子量: 13768.157 Da / 分子数: 1 / 由来タイプ: 天然 / 由来: (天然) Escherichia coli (大腸菌) / 参照: UniProt: D7ZAN0 |
#50: タンパク質 | 分子量: 13128.467 Da / 分子数: 1 / 由来タイプ: 天然 / 由来: (天然) Escherichia coli (大腸菌) / 参照: UniProt: H4UQ02 |
#51: タンパク質 | 分子量: 11606.560 Da / 分子数: 1 / 由来タイプ: 天然 / 由来: (天然) Escherichia coli (大腸菌) / 参照: UniProt: D7Z9G8 |
#52: タンパク質 | 分子量: 10290.816 Da / 分子数: 1 / 由来タイプ: 天然 / 由来: (天然) Escherichia coli (大腸菌) / 参照: UniProt: D7ZEL4 |
#53: タンパク質 | 分子量: 9207.572 Da / 分子数: 1 / 由来タイプ: 天然 / 由来: (天然) Escherichia coli (大腸菌) / 参照: UniProt: B7MIU7 |
#54: タンパク質 | 分子量: 9724.491 Da / 分子数: 1 / 由来タイプ: 天然 / 由来: (天然) Escherichia coli (大腸菌) / 参照: UniProt: D7Z9G4 |
#55: タンパク質 | 分子量: 9005.472 Da / 分子数: 1 / 由来タイプ: 天然 / 由来: (天然) Escherichia coli (大腸菌) / 参照: UniProt: A0A0E2KXL3 |
-RNA鎖 , 5種, 5分子 4ACIJ
#4: RNA鎖 | 分子量: 4737.857 Da / 分子数: 1 / 由来タイプ: 天然 / 由来: (天然) Escherichia coli (大腸菌) |
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#5: RNA鎖 | 分子量: 24509.562 Da / 分子数: 1 / 由来タイプ: 天然 / 由来: (天然) Escherichia coli (大腸菌) / 参照: GenBank: 1841332652 |
#6: RNA鎖 | 分子量: 499054.625 Da / 分子数: 1 / 由来タイプ: 天然 / 由来: (天然) Escherichia coli (大腸菌) / 参照: GenBank: 1758835854 |
#12: RNA鎖 | 分子量: 941811.562 Da / 分子数: 1 / 由来タイプ: 天然 / 由来: (天然) Escherichia coli (大腸菌) |
#13: RNA鎖 | 分子量: 38790.090 Da / 分子数: 1 / 由来タイプ: 天然 / 由来: (天然) Escherichia coli (大腸菌) / 参照: GenBank: 1273279017 |
+50S ribosomal protein ... , 29種, 29分子 KLMNOPQRSTUVWXYZabcdefghijklm
-タンパク質・ペプチド , 1種, 1分子 s
#48: タンパク質・ペプチド | 分子量: 643.816 Da / 分子数: 1 / 由来タイプ: 天然 / 由来: (天然) Escherichia coli (大腸菌) |
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-非ポリマー , 4種, 241分子
#56: 化合物 | ChemComp-MG / #57: 化合物 | ChemComp-ZLD / | #58: 化合物 | #59: 水 | ChemComp-HOH / | |
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-詳細
研究の焦点であるリガンドがあるか | Y |
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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: wild-type Escherichia coli stalled ribosome with antibiotic linezolid タイプ: RIBOSOME / Entity ID: #1-#55 / 由来: NATURAL |
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分子量 | 値: 2.154 MDa / 実験値: NO |
由来(天然) | 生物種: Escherichia coli (大腸菌) |
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 |
試料支持 | 詳細: 15 mA / グリッドの材料: COPPER / 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: 95 % / 凍結前の試料温度: 283.2 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 |
試料ホルダ | 凍結剤: NITROGEN 試料ホルダーモデル: FEI TITAN KRIOS AUTOGRID HOLDER |
撮影 | 電子線照射量: 67.8 e/Å2 / フィルム・検出器のモデル: GATAN K3 (6k x 4k) / 撮影したグリッド数: 1 / 実像数: 3644 |
-解析
EMソフトウェア |
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CTF補正 | タイプ: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||
粒子像の選択 | 選択した粒子像数: 332502 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||
対称性 | 点対称性: C1 (非対称) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||
3次元再構成 | 解像度: 2.48 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 176779 / クラス平均像の数: 1 / 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 |