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データを開く
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基本情報
登録情報 | データベース: PDB / ID: 7ti5 | ||||||
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タイトル | Adeno-associated virus Go.1 in Complex With Its Cellular Receptor AAVR at 2.4 Angstroms Resolution, AAVGo.1 AAVR | ||||||
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![]() | VIRUS LIKE PARTICLE / AAVGo.1 / AAV / AAV-Go / AAVR / adeno-associated virus / PKD domain / parvovirus / gene therapy / receptor / adeno-associated virus receptor / PKD1 / PKD | ||||||
機能・相同性 | ![]() T=1 icosahedral viral capsid / neuron migration / cytoplasmic vesicle / Golgi membrane / nucleolus / structural molecule activity / Golgi apparatus / membrane / plasma membrane 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: 2.4 Å | ||||||
![]() | Silveria, M. / Large, E. | ||||||
資金援助 | ![]()
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![]() | ![]() タイトル: Cross-Species Permissivity: Structure of a Goat Adeno-Associated Virus and Its Complex with the Human Receptor AAVR. 著者: Edward E Large / Mark A Silveria / Onellah Weerakoon / Tommi A White / Michael S Chapman / ![]() 要旨: Adeno-associated virus (AAV) is a small ssDNA satellite virus of high interest (in recombinant form) as a safe and effective gene therapy vector. AAV's human cell entry receptor (AAVR) contains ...Adeno-associated virus (AAV) is a small ssDNA satellite virus of high interest (in recombinant form) as a safe and effective gene therapy vector. AAV's human cell entry receptor (AAVR) contains polycystic kidney disease (PKD) domains bound by AAV. Seeking understanding of the spectrum of interactions, goat AAVGo.1 is investigated, because its host is the species most distant from human with reciprocal cross-species cell susceptibility. The structure of AAVGo.1, solved by cryo-EM to 2.9 Å resolution, is most similar to AAV5. Through ELISA (enzyme-linked immunosorbent assay) studies, it is shown that AAVGo.1 binds to human AAVR more strongly than do AAV2 or AAV5, and that it joins AAV5 in a class that binds exclusively to PKD domain 1 (PKD1), in contrast to other AAVs that interact primarily with PKD2. The AAVGo.1 cryo-EM structure of a complex with a PKD12 fragment of AAVR at 2.4 Å resolution shows PKD1 bound with minimal change in virus structure. There are only minor conformational adaptations in AAVR, but there is a near-rigid rotation of PKD1 with maximal displacement of the receptor domain by ~1 Å compared to PKD1 bound to AAV5. AAVGo.1 joins AAV5 as the second member of an emerging class of AAVs whose mode of receptor-binding is completely different from other AAVs, typified by AAV2. Adeno-associated virus (AAV) is a small ssDNA satellite parvovirus. As a recombinant vector with a protein shell encapsidating a transgene, recombinant AAV (rAAV) is a leading delivery vehicle for gene therapy, with two FDA-approved treatments and 150 clinical trials for 30 diseases. The human entry receptor AAVR has five PKD domains. To date, all serotypes, except AAV5, have interacted primarily with the second PKD domain, PKD2. Goat is the AAV host most distant from human with cross-species cell infectivity. AAVGo.1 is similar in structure to AAV5, the two forming a class with a distinct mode of receptor-binding. Within the two classes, binding interactions are mostly conserved, giving an indication of the latitude available in modulating delivery vectors. | ||||||
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構造の表示
構造ビューア | 分子: ![]() ![]() |
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ダウンロードとリンク
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PDBx/mmCIF形式 | ![]() | 142.3 KB | 表示 | ![]() |
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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 | ![]() | 1.1 MB | 表示 | ![]() |
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文書・詳細版 | ![]() | 1.1 MB | 表示 | |
XML形式データ | ![]() | 25.9 KB | 表示 | |
CIF形式データ | ![]() | 36.7 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 | ![]() 25910MC ![]() 7ti4C 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 ( |
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類似構造データ | 類似検索 - 機能・相同性 ![]() |
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リンク
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集合体
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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)) |
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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) ![]() ![]() ![]() |
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#2: タンパク質 | 分子量: 80691.594 Da / 分子数: 1 / 由来タイプ: 組換発現 由来: (組換発現) ![]() ![]() 遺伝子: cap 発現宿主: ![]() ![]() 参照: UniProt: Q5XXZ6 |
-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 |
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試料調製
構成要素 | 名称: Adeno-associated virus / タイプ: VIRUS 詳細: Expressed using SF9 cells with a pfastbac LIC vector. Purified with cesium chloride ultracentrifugation. Entity ID: all / 由来: MULTIPLE SOURCES | ||||||||||||||||||||
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分子量 | 値: 3.746 MDa / 実験値: NO | ||||||||||||||||||||
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 | 中空か: YES / エンベロープを持つか: NO / 単離: SEROTYPE / タイプ: VIRUS-LIKE PARTICLE | ||||||||||||||||||||
天然宿主 | 生物種: Homo sapiens | ||||||||||||||||||||
ウイルス殻 | 名称: Capsid, VP3 / 直径: 250 nm / 三角数 (T数): 1 | ||||||||||||||||||||
緩衝液 | pH: 7.4 | ||||||||||||||||||||
緩衝液成分 |
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試料 | 濃度: 0.75 mg/ml / 包埋: NO / シャドウイング: NO / 染色: NO / 凍結: YES / 詳細: Monodisperse | ||||||||||||||||||||
試料支持 | グリッドの材料: COPPER グリッドのタイプ: PELCO Ultrathin Carbon with Lacey Carbon | ||||||||||||||||||||
急速凍結 | 凍結剤: ETHANE / 湿度: 100 % / 凍結前の試料温度: 293 K 詳細: Two 2uL aliquots applied to grid (manual blotting between), prior to automated 3 second blot before plunging. |
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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: ![]() |
電子レンズ | モード: BRIGHT FIELD / 倍率(公称値): 6400 X / 最大 デフォーカス(公称値): 2700 nm / 最小 デフォーカス(公称値): 700 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 最高温度: 93 K / 最低温度: 93 K |
撮影 | 電子線照射量: 32.9 e/Å2 / フィルム・検出器のモデル: GATAN K3 (6k x 4k) / 詳細: Pixel size was 0.664 angstrom. |
画像スキャン | 横: 11520 / 縦: 8184 |
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解析
EMソフトウェア |
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CTF補正 | 詳細: CTF correction was performed per particle / タイプ: PHASE FLIPPING ONLY | ||||||||||||||||||||||||||||||
粒子像の選択 | 詳細: LoG Picker was used for initial automated particle selection. Templates were then generated by 2D classification, followed by particle template selection in Relion 3.0. | ||||||||||||||||||||||||||||||
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: 71094 / 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: Least-squares residual 詳細: Stand-alone RSRef was used for refinement of magnification, resolution, envelope correction and atomic B-factors. This was alternated with RSRef-embedded CNS was used for molecular dynamics ...詳細: Stand-alone RSRef was used for refinement of magnification, resolution, envelope correction and atomic B-factors. This was alternated with RSRef-embedded CNS was used for molecular dynamics optimization (1st round) and stereochemically-restrained all-atom least-squares optimization. | ||||||||||||||||||||||||||||||
原子モデル構築 | 3D fitting-ID: 1 / Accession code: 7KPN / Initial refinement model-ID: 1 / PDB-ID: 7KPN / Source name: PDB / タイプ: experimental model
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精密化 | 最高解像度: 2.4 Å |