+データを開く
-基本情報
登録情報 | データベース: PDB / ID: 7n0h | ||||||
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タイトル | CryoEM structure of SARS-CoV-2 spike protein (S-6P, 2-up) in complex with sybodies (Sb45) | ||||||
要素 |
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キーワード | VIRAL PROTEIN / SARS-CoV-2 / Spike Protein / S-6P (HexaPro) / nanobody / sybody / Sb45 / neutralization | ||||||
機能・相同性 | 機能・相同性情報 Maturation of spike protein / viral translation / Translation of Structural Proteins / Virion Assembly and Release / host cell surface / host extracellular space / suppression by virus of host tetherin activity / Induction of Cell-Cell Fusion / structural constituent of virion / entry receptor-mediated virion attachment to host cell ...Maturation of spike protein / viral translation / Translation of Structural Proteins / Virion Assembly and Release / host cell surface / host extracellular space / suppression by virus of host tetherin activity / Induction of Cell-Cell Fusion / structural constituent of virion / entry receptor-mediated virion attachment to host cell / host cell endoplasmic reticulum-Golgi intermediate compartment membrane / receptor-mediated endocytosis of virus by host cell / membrane fusion / Attachment and Entry / positive regulation of viral entry into host cell / receptor-mediated virion attachment to host cell / receptor ligand activity / host cell surface receptor binding / symbiont-mediated suppression of host innate immune response / fusion of virus membrane with host plasma membrane / fusion of virus membrane with host endosome membrane / viral envelope / virion attachment to host cell / SARS-CoV-2 activates/modulates innate and adaptive immune responses / host cell plasma membrane / virion membrane / identical protein binding / membrane / plasma membrane 類似検索 - 分子機能 | ||||||
生物種 | Severe acute respiratory syndrome coronavirus 2 (ウイルス) synthetic construct (人工物) | ||||||
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: 3.34 Å | ||||||
データ登録者 | Jiang, J. / Huang, R. / Margulies, D. | ||||||
引用 | ジャーナル: J Biol Chem / 年: 2021 タイトル: Structures of synthetic nanobody-SARS-CoV-2 receptor-binding domain complexes reveal distinct sites of interaction. 著者: Javeed Ahmad / Jiansheng Jiang / Lisa F Boyd / Allison Zeher / Rick Huang / Di Xia / Kannan Natarajan / David H Margulies / 要旨: Combating the worldwide spread of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) and the emergence of new variants demands understanding of the structural basis of the interaction of ...Combating the worldwide spread of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) and the emergence of new variants demands understanding of the structural basis of the interaction of antibodies with the SARS-CoV-2 receptor-binding domain (RBD). Here, we report five X-ray crystal structures of sybodies (synthetic nanobodies) including those of binary and ternary complexes of Sb16-RBD, Sb45-RBD, Sb14-RBD-Sb68, and Sb45-RBD-Sb68, as well as unliganded Sb16. These structures reveal that Sb14, Sb16, and Sb45 bind the RBD at the angiotensin-converting enzyme 2 interface and that the Sb16 interaction is accompanied by a large conformational adjustment of complementarity-determining region 2. In contrast, Sb68 interacts at the periphery of the SARS-CoV-2 RBD-angiotensin-converting enzyme 2 interface. We also determined cryo-EM structures of Sb45 bound to the SARS-CoV-2 spike protein. Superposition of the X-ray structures of sybodies onto the trimeric spike protein cryo-EM map indicates that some sybodies may bind in both "up" and "down" configurations, but others may not. Differences in sybody recognition of several recently identified RBD variants are explained by these structures. | ||||||
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 | 7n0h.cif.gz | 631.7 KB | 表示 | PDBx/mmCIF形式 |
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PDB形式 | pdb7n0h.ent.gz | 517.8 KB | 表示 | PDB形式 |
PDBx/mmJSON形式 | 7n0h.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 | 7n0h_validation.pdf.gz | 3 MB | 表示 | wwPDB検証レポート |
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文書・詳細版 | 7n0h_full_validation.pdf.gz | 3.1 MB | 表示 | |
XML形式データ | 7n0h_validation.xml.gz | 98.1 KB | 表示 | |
CIF形式データ | 7n0h_validation.cif.gz | 152.4 KB | 表示 | |
アーカイブディレクトリ | https://data.pdbj.org/pub/pdb/validation_reports/n0/7n0h ftp://data.pdbj.org/pub/pdb/validation_reports/n0/7n0h | 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
#1: タンパク質 | 分子量: 142427.438 Da / 分子数: 3 / 由来タイプ: 組換発現 由来: (組換発現) Severe acute respiratory syndrome coronavirus 2 (ウイルス) 遺伝子: S, 2 / Cell (発現宿主): HEK293F / 細胞株 (発現宿主): HEK293 / 発現宿主: Homo sapiens (ヒト) / 参照: UniProt: P0DTC2 #2: 抗体 | 分子量: 13574.048 Da / 分子数: 2 / 由来タイプ: 組換発現 / 由来: (組換発現) synthetic construct (人工物) / プラスミド: pET21b / 発現宿主: Escherichia coli (大腸菌) #3: 多糖 | 2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose #4: 糖 | ChemComp-NAG / 研究の焦点であるリガンドがあるか | Y | Has protein modification | 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: Spike protein (S-6P, 2-up) in complex with Synthetic nanobody (Sb45) タイプ: COMPLEX 詳細: Synthetic nanobody Sb45 was mixed with freshly purified S-6P in the mole ratio of 3:1, incubated, and subjected to Negative stain and frozen grids for cryoEM data collection. Entity ID: #1-#2 / 由来: RECOMBINANT | ||||||||||||
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分子量 | 値: 0.6 MDa / 実験値: NO | ||||||||||||
由来(天然) |
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由来(組換発現) |
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緩衝液 | pH: 8 | ||||||||||||
緩衝液成分 | 濃度: 0.25 mg/mL / 名称: TBS | ||||||||||||
試料 | 濃度: 0.6 mg/ml / 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: 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: 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 / 倍率(公称値): 130000 X / 倍率(補正後): 47529 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): 700 nm / Calibrated defocus min: 535 nm / 最大 デフォーカス(補正後): 2431 nm / Cs: 2.7 mm / C2レンズ絞り径: 100 µm / アライメント法: BASIC |
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: 80 K / 最低温度: 78 K |
撮影 | 平均露光時間: 8 sec. / 電子線照射量: 56 e/Å2 / 検出モード: SUPER-RESOLUTION フィルム・検出器のモデル: GATAN K2 QUANTUM (4k x 4k) 撮影したグリッド数: 2 / 実像数: 9725 |
画像スキャン | サンプリングサイズ: 5.001 µm / 動画フレーム数/画像: 40 |
-解析
EMソフトウェア |
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CTF補正 | 詳細: patch CTF estimation / タイプ: NONE | ||||||||||||||||||||||||||||||||||||||||||
粒子像の選択 | 選択した粒子像数: 1433963 詳細: A total of 9,725 micrographs were imported into cryoSPARC. Following patch Motion correction, patch CTF estimation, and curation, the number of micrographs was reduced to 9,237. The blob ...詳細: A total of 9,725 micrographs were imported into cryoSPARC. Following patch Motion correction, patch CTF estimation, and curation, the number of micrographs was reduced to 9,237. The blob picker with the particle diameter between 128 and 256 angstroms was used for picking up particles. We used the box size of 400 pixels and extracted 1,433,963 particles initially. | ||||||||||||||||||||||||||||||||||||||||||
対称性 | 点対称性: C1 (非対称) | ||||||||||||||||||||||||||||||||||||||||||
3次元再構成 | 解像度: 3.34 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 61026 / アルゴリズム: SIMULTANEOUS ITERATIVE (SIRT) 詳細: A series of Ab-initio 3D reconstruction (classification)dividing 2 or 4 subclasses to identify two forms of S-6P, i.e. one RBD up, or two RBD up. クラス平均像の数: 18 / 対称性のタイプ: POINT | ||||||||||||||||||||||||||||||||||||||||||
原子モデル構築 | B value: 157 / プロトコル: RIGID BODY FIT / 空間: REAL / Target criteria: Correlation Coefficient 詳細: An initial model for S-6P was generated using PDB 6XKL and rigid body fitted into the map using Chimera. The RBD domain (334-528) and Sb45 are taken from 7KGJ which was superimposed onto the ...詳細: An initial model for S-6P was generated using PDB 6XKL and rigid body fitted into the map using Chimera. The RBD domain (334-528) and Sb45 are taken from 7KGJ which was superimposed onto the S-6P model in PyMol. The NTD domain (14-289) is taken from 7B32 with full sequence and replace that of 6XKL. We have rebuilt and added more glycans (NAGs). We used the real-space refinement in PHENIX including rigid-body refinement. RBD and NTD are subjected to rigid-body refinement. Simulate annealing (SA) runs once at the initial micro-step, local grid search and ADP refinements were included, using the secondary structure restraints. | ||||||||||||||||||||||||||||||||||||||||||
原子モデル構築 | 3D fitting-ID: 1 / Source name: PDB / タイプ: experimental model
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