+データを開く
-基本情報
登録情報 | データベース: PDB / ID: 7edg | |||||||||||||||
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タイトル | Cryo-EM structure of SARS-CoV-2 S-UK variant (B.1.1.7), one RBD-up conformation 2 | |||||||||||||||
要素 | Spike glycoprotein | |||||||||||||||
キーワード | VIRAL PROTEIN / SARS-CoV-2 / Spike protein | |||||||||||||||
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 / membrane fusion / receptor-mediated endocytosis of virus by host cell / 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) | |||||||||||||||
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: 3.2 Å | |||||||||||||||
データ登録者 | Yang, T.J. / Yu, P.Y. / Chang, Y.C. / Wu, H.C. / Hsu, S.T.D. | |||||||||||||||
資金援助 | 台湾, 4件
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引用 | ジャーナル: Nat Struct Mol Biol / 年: 2021 タイトル: Effect of SARS-CoV-2 B.1.1.7 mutations on spike protein structure and function. 著者: Tzu-Jing Yang / Pei-Yu Yu / Yuan-Chih Chang / Kang-Hao Liang / Hsian-Cheng Tso / Meng-Ru Ho / Wan-Yu Chen / Hsiu-Ting Lin / Han-Chung Wu / Shang-Te Danny Hsu / 要旨: The B.1.1.7 variant of SARS-CoV-2 first detected in the UK harbors amino-acid substitutions and deletions in the spike protein that potentially enhance host angiotensin conversion enzyme 2 (ACE2) ...The B.1.1.7 variant of SARS-CoV-2 first detected in the UK harbors amino-acid substitutions and deletions in the spike protein that potentially enhance host angiotensin conversion enzyme 2 (ACE2) receptor binding and viral immune evasion. Here we report cryo-EM structures of the spike protein of B.1.1.7 in the apo and ACE2-bound forms. The apo form showed one or two receptor-binding domains (RBDs) in the open conformation, without populating the fully closed state. All three RBDs were engaged in ACE2 binding. The B.1.1.7-specific A570D mutation introduces a molecular switch that could modulate the opening and closing of the RBD. The N501Y mutation introduces a π-π interaction that enhances RBD binding to ACE2 and abolishes binding of a potent neutralizing antibody (nAb). Cryo-EM also revealed how a cocktail of two nAbs simultaneously bind to all three RBDs, and demonstrated the potency of the nAb cocktail to neutralize different SARS-CoV-2 pseudovirus strains, including B.1.1.7. | |||||||||||||||
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 | 7edg.cif.gz | 569.4 KB | 表示 | PDBx/mmCIF形式 |
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PDB形式 | pdb7edg.ent.gz | 457.9 KB | 表示 | PDB形式 |
PDBx/mmJSON形式 | 7edg.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 | 7edg_validation.pdf.gz | 2.3 MB | 表示 | wwPDB検証レポート |
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文書・詳細版 | 7edg_full_validation.pdf.gz | 2.3 MB | 表示 | |
XML形式データ | 7edg_validation.xml.gz | 82.2 KB | 表示 | |
CIF形式データ | 7edg_validation.cif.gz | 124.5 KB | 表示 | |
アーカイブディレクトリ | https://data.pdbj.org/pub/pdb/validation_reports/ed/7edg ftp://data.pdbj.org/pub/pdb/validation_reports/ed/7edg | 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: 142662.797 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 / 発現宿主: Homo sapiens (ヒト) / 参照: UniProt: P0DTC2 #2: 多糖 | 2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose #3: 多糖 | beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta- ...beta-D-mannopyranose-(1-4)-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 | N | Has protein modification | Y | 配列の詳細 | The two deletions, including residues 69-70 and residue 144 are designed for this study. The ...The two deletions, including residues 69-70 and residue 144 are designed for this study. The residues, including Y498, D567, G611, H678, I713, A979 and H1115, are designed for this study. The residues 679-682 (RAAA) and residues 983-984 (PP) are designed for protein stabilization. | |
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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: SARS-CoV-2 spike glycoprotein / タイプ: ORGANELLE OR CELLULAR COMPONENT / 詳細: UK variant (B.1.1.7) conformation 2 / Entity ID: #1 / 由来: RECOMBINANT | ||||||||||||||||||||
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分子量 | 値: 0.54 MDa / 実験値: YES | ||||||||||||||||||||
由来(天然) | 生物種: Severe acute respiratory syndrome coronavirus 2 (ウイルス) | ||||||||||||||||||||
由来(組換発現) | 生物種: Homo sapiens (ヒト) | ||||||||||||||||||||
緩衝液 | pH: 7.6 | ||||||||||||||||||||
緩衝液成分 |
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試料 | 濃度: 1 mg/ml / 包埋: NO / シャドウイング: NO / 染色: NO / 凍結: YES | ||||||||||||||||||||
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 詳細: blot for 2.5 seconds before plunging; blot force: 0; waiting time: 30s |
-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 / Cs: 2.7 mm |
試料ホルダ | 凍結剤: NITROGEN |
撮影 | 電子線照射量: 1 e/Å2 / フィルム・検出器のモデル: GATAN K3 (6k x 4k) |
-解析
ソフトウェア | 名称: PHENIX / バージョン: 1.19.1_4122: / 分類: 精密化 | ||||||||||||||||||||||||
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EMソフトウェア |
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CTF補正 | タイプ: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||
対称性 | 点対称性: C1 (非対称) | ||||||||||||||||||||||||
3次元再構成 | 解像度: 3.2 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 298167 / 対称性のタイプ: POINT | ||||||||||||||||||||||||
拘束条件 |
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