+データを開く
-基本情報
登録情報 | データベース: PDB / ID: 6nz0 | |||||||||
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タイトル | Cryo-EM structure of AAV-2 in complex with AAVR PKD domains 1 and 2 | |||||||||
要素 |
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キーワード | VIRUS / AAV / AAVR / receptor / coreceptor / KIAA0319L / PKD / parvovirus | |||||||||
機能・相同性 | 機能・相同性情報 symbiont entry into host cell via permeabilization of host membrane / host cell nucleolus / T=1 icosahedral viral capsid / neuron migration / cytoplasmic vesicle / clathrin-dependent endocytosis of virus by host cell / Golgi membrane / virion attachment to host cell / nucleolus / structural molecule activity ...symbiont entry into host cell via permeabilization of host membrane / host cell nucleolus / T=1 icosahedral viral capsid / neuron migration / cytoplasmic vesicle / clathrin-dependent endocytosis of virus by host cell / Golgi membrane / virion attachment to host cell / nucleolus / structural molecule activity / Golgi apparatus / membrane / plasma membrane 類似検索 - 分子機能 | |||||||||
生物種 | Homo sapiens (ヒト) Adeno-associated virus - 2 (アデノ随伴ウイルス) | |||||||||
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: 2.4 Å | |||||||||
データ登録者 | Meyer, N.L. / Xie, Q. / Davulcu, O. / Yoshioka, C. / Chapman, M.S. | |||||||||
資金援助 | 米国, 2件
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引用 | ジャーナル: Elife / 年: 2019 タイトル: Structure of the gene therapy vector, adeno-associated virus with its cell receptor, AAVR. 著者: Nancy L Meyer / Guiqing Hu / Omar Davulcu / Qing Xie / Alex J Noble / Craig Yoshioka / Drew S Gingerich / Andrew Trzynka / Larry David / Scott M Stagg / Michael Stewart Chapman / 要旨: Adeno-associated virus (AAV) vectors are preeminent in emerging clinical gene therapies. Generalizing beyond the most tractable genetic diseases will require modulation of cell specificity and immune ...Adeno-associated virus (AAV) vectors are preeminent in emerging clinical gene therapies. Generalizing beyond the most tractable genetic diseases will require modulation of cell specificity and immune neutralization. Interactions of AAV with its cellular receptor, AAVR, are key to understanding cell-entry and trafficking with the rigor needed to engineer tissue-specific vectors. -electron tomography shows ordered binding of part of the flexible receptor to the viral surface, with distal domains in multiple conformations. Regions of the virus and receptor in close physical proximity can be identified by cross-linking/mass spectrometry. -electron microscopy with a two-domain receptor fragment reveals the interactions at 2.4 Å resolution. AAVR binds between AAV's spikes on a plateau that is conserved, except in one clade whose structure is AAVR-incompatible. AAVR's footprint overlaps the epitopes of several neutralizing antibodies, prompting a re-evaluation of neutralization mechanisms. The structure provides a roadmap for experimental probing and manipulation of viral-receptor interactions. | |||||||||
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 | 6nz0.cif.gz | 147.3 KB | 表示 | PDBx/mmCIF形式 |
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PDB形式 | pdb6nz0.ent.gz | 106.4 KB | 表示 | PDB形式 |
PDBx/mmJSON形式 | 6nz0.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 | 6nz0_validation.pdf.gz | 1.3 MB | 表示 | wwPDB検証レポート |
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文書・詳細版 | 6nz0_full_validation.pdf.gz | 1.3 MB | 表示 | |
XML形式データ | 6nz0_validation.xml.gz | 31.7 KB | 表示 | |
CIF形式データ | 6nz0_validation.cif.gz | 45 KB | 表示 | |
アーカイブディレクトリ | https://data.pdbj.org/pub/pdb/validation_reports/nz/6nz0 ftp://data.pdbj.org/pub/pdb/validation_reports/nz/6nz0 | 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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2 |
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対称性 | 点対称性: (シェーンフリース記号: I (正20面体型対称)) |
-要素
#1: タンパク質 | 分子量: 31837.385 Da / 分子数: 1 / 断片: residues 311-597 / 由来タイプ: 組換発現 / 由来: (組換発現) Homo sapiens (ヒト) / 遺伝子: KIAA0319L, AAVR, KIAA1837, PP791 / プラスミド: pET-11a / 発現宿主: Escherichia coli (大腸菌) / Variant (発現宿主): NEBexpress / 参照: UniProt: Q8IZA0 |
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#2: タンパク質 | 分子量: 82077.445 Da / 分子数: 1 / 由来タイプ: 組換発現 由来: (組換発現) Adeno-associated virus - 2 (アデノ随伴ウイルス) 遺伝子: VP1 / 細胞株 (発現宿主): Sf9 発現宿主: Spodoptera frugiperda (ツマジロクサヨトウ) 参照: UniProt: P03135 |
#3: 化合物 | ChemComp-MG / |
#4: 水 | ChemComp-HOH / |
Has protein modification | Y |
-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 |
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分子量 |
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由来(天然) |
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由来(組換発現) |
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ウイルスについての詳細 |
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天然宿主 |
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ウイルス殻 |
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緩衝液 | pH: 7.4 | |||||||||||||||||||||
緩衝液成分 |
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試料 | 濃度: 0.1 mg/ml / 包埋: NO / シャドウイング: NO / 染色: NO / 凍結: YES 詳細: Virus-like particles at 0.10 mg/mL were adhered to thin continuous carbon-coated grids, then, after initial blotting, AAVR-PKD1-2 was added at 0.74 mg/mL (a 10-fold molar excess over AAV2 ...詳細: Virus-like particles at 0.10 mg/mL were adhered to thin continuous carbon-coated grids, then, after initial blotting, AAVR-PKD1-2 was added at 0.74 mg/mL (a 10-fold molar excess over AAV2 subunits) before blotting again. | |||||||||||||||||||||
試料支持 | 詳細: Glow discharge settings: Pelco easiGlow, 25s, 25mA, 0.39mBar, negative polarity Grid: Ted Pella Cat#01824, ultrathin carbon film (<3nm) on lacey carbon support film グリッドの材料: COPPER / グリッドのサイズ: 400 divisions/in. | |||||||||||||||||||||
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: 298.15 K 詳細: 4ul of AAV-2 (1.7uM) was added to the grid, followed by 4ul of AAVR-PKD1-2 (16.7uM), with manual blotting after each addition with Whatman paper (Cat. no. 1001-110.) 4ul of buffer containing ...詳細: 4ul of AAV-2 (1.7uM) was added to the grid, followed by 4ul of AAVR-PKD1-2 (16.7uM), with manual blotting after each addition with Whatman paper (Cat. no. 1001-110.) 4ul of buffer containing 25mM HEPES, 150mM NaCl, pH 7.4 was added to the grid before final blotting and plunge-freezing in the Vitrobot (blot time 1.5sec, blot force -1). |
-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 / 倍率(公称値): 75000 X / 最大 デフォーカス(公称値): -2000 nm / 最小 デフォーカス(公称値): -800 nm / Cs: 2.7 mm / アライメント法: COMA FREE |
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 | 平均露光時間: 40 sec. / 電子線照射量: 25.4 e/Å2 / 検出モード: SUPER-RESOLUTION フィルム・検出器のモデル: FEI FALCON III (4k x 4k) 撮影したグリッド数: 1 / 実像数: 2329 |
画像スキャン | 横: 7676 / 縦: 7420 |
-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: 34450 詳細: RELION Autopicker using 3D AAV-2 reference filtered to 20A with 15 degree sampling | ||||||||||||||||||||||||||||||||||||||||||||||||||
対称性 | 点対称性: I (正20面体型対称) | ||||||||||||||||||||||||||||||||||||||||||||||||||
3次元再構成 | 解像度: 2.4 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 21373 / 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 Target criteria: Map values at grid points within 2 Angstrom of atoms 詳細: An initial model for AAVR was constructed by homology modeling using Modeller 9.2. After remodeling AAVR and the crystal structure of AAV2, the structure was refined using RSRef embedded in ...詳細: An initial model for AAVR was constructed by homology modeling using Modeller 9.2. After remodeling AAVR and the crystal structure of AAV2, the structure was refined using RSRef embedded in CNS for stereochemically restrained torsion angle simulated annealing and gradient descent optimization. Stand-alone RSRef was used for refinement of EM envelope corrections, resolution estimates, and restrained atomic B-factors. | ||||||||||||||||||||||||||||||||||||||||||||||||||
原子モデル構築 | PDB-ID: 1LP3 PDB chain-ID: A / Accession code: 1LP3 / Pdb chain residue range: 217-735 / Source name: PDB / タイプ: experimental model |