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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: 7mtc | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| タイトル | Structure of freshly purified SARS-CoV-2 S2P spike at pH 7.4 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
 要素 | Spike glycoprotein | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
 キーワード | VIRAL PROTEIN / COVID-19 / SARS-CoV-2 spike / S2P | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 機能・相同性 |  機能・相同性情報symbiont-mediated disruption of host tissue / Maturation of spike protein / Translation of Structural Proteins / Virion Assembly and Release / host cell surface / host extracellular space / viral translation / symbiont-mediated-mediated suppression of host tetherin activity / Induction of Cell-Cell Fusion / structural constituent of virion ...symbiont-mediated disruption of host tissue / Maturation of spike protein / Translation of Structural Proteins / Virion Assembly and Release / host cell surface / host extracellular space / viral translation / symbiont-mediated-mediated suppression of host tetherin activity / Induction of Cell-Cell Fusion / structural constituent of virion / entry receptor-mediated virion attachment to host cell / membrane fusion / Attachment and Entry / host cell endoplasmic reticulum-Golgi intermediate compartment membrane / positive regulation of viral entry into host cell / receptor-mediated virion attachment to host cell / host cell surface receptor binding / symbiont-mediated suppression of host innate immune response / receptor ligand activity / endocytosis involved in viral entry into host cell / fusion of virus membrane with host plasma membrane / fusion of virus membrane with host endosome membrane / viral envelope / symbiont entry into host cell / 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 | ![]()  | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 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: 2.6 Å | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
 データ登録者 | Tsybovsky, Y. / Olia, A.S. / Kwong, P.D. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
 引用 |  ジャーナル: J Biol Chem / 年: 2021タイトル: SARS-CoV-2 S2P spike ages through distinct states with altered immunogenicity. 著者: Adam S Olia / Yaroslav Tsybovsky / Steven J Chen / Cuiping Liu / Alexandra F Nazzari / Li Ou / Lingshu Wang / Wing-Pui Kong / Kwan Leung / Tracy Liu / Tyler Stephens / I-Ting Teng / Shuishu ...著者: Adam S Olia / Yaroslav Tsybovsky / Steven J Chen / Cuiping Liu / Alexandra F Nazzari / Li Ou / Lingshu Wang / Wing-Pui Kong / Kwan Leung / Tracy Liu / Tyler Stephens / I-Ting Teng / Shuishu Wang / Eun Sung Yang / Baoshan Zhang / Yi Zhang / Tongqing Zhou / John R Mascola / Peter D Kwong / ![]() 要旨: The SARS-CoV-2 spike is the primary target of virus-neutralizing antibodies and critical to the development of effective vaccines against COVID-19. Here, we demonstrate that the prefusion-stabilized ...The SARS-CoV-2 spike is the primary target of virus-neutralizing antibodies and critical to the development of effective vaccines against COVID-19. Here, we demonstrate that the prefusion-stabilized two-proline "S2P" spike-widely employed for laboratory work and clinical studies-unfolds when stored at 4 °C, physiological pH, as observed by electron microscopy (EM) and differential scanning calorimetry, but that its trimeric, native-like conformation can be reacquired by low pH treatment. When stored for approximately 1 week, this unfolding does not significantly alter antigenic characteristics; however, longer storage diminishes antibody binding, and month-old spike elicits virtually no neutralization in mice despite inducing high ELISA-binding titers. Cryo-EM structures reveal the folded fraction of spike to decrease with aging; however, its structure remains largely similar, although with varying mobility of the receptor-binding domain. Thus, the SARS-CoV-2 spike is susceptible to unfolding, which affects immunogenicity, highlighting the need to monitor its integrity.  | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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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:  Molmil Jmol/JSmol | 
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ダウンロードとリンク
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ダウンロード
| PDBx/mmCIF形式 |  7mtc.cif.gz | 500.2 KB | 表示 |  PDBx/mmCIF形式 | 
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| PDB形式 |  pdb7mtc.ent.gz | 392.5 KB | 表示 |  PDB形式 | 
| PDBx/mmJSON形式 |  7mtc.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 |  7mtc_validation.pdf.gz | 2 MB | 表示 |  wwPDB検証レポート | 
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| 文書・詳細版 |  7mtc_full_validation.pdf.gz | 2 MB | 表示 | |
| XML形式データ |  7mtc_validation.xml.gz | 83.7 KB | 表示 | |
| CIF形式データ |  7mtc_validation.cif.gz | 129.7 KB | 表示 | |
| アーカイブディレクトリ |  https://data.pdbj.org/pub/pdb/validation_reports/mt/7mtc ftp://data.pdbj.org/pub/pdb/validation_reports/mt/7mtc | HTTPS FTP  | 
-関連構造データ
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リンク
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集合体
| 登録構造単位 | ![]() 
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要素
| #1: タンパク質 | 分子量: 141532.797 Da / 分子数: 3 / 由来タイプ: 組換発現 由来: (組換発現) ![]() 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: 糖 | ChemComp-NAG / 研究の焦点であるリガンドがあるか | N | 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 | 
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試料調製
| 構成要素 | 名称: SARS-CoV-2 S2P spike trimer / タイプ: COMPLEX / Entity ID: #1 / 由来: RECOMBINANT | 
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| 分子量 | 値: 0.42 MDa / 実験値: NO | 
| 由来(天然) | 生物種: ![]()  | 
| 由来(組換発現) | 生物種:  Homo sapiens (ヒト) / 株: 293-F | 
| 緩衝液 | pH: 7.4 | 
| 緩衝液成分 | 式: PBS | 
| 試料 | 濃度: 0.5 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: GOLD / グリッドのタイプ: Quantifoil R2/2 | 
| 急速凍結 | 装置: FEI VITROBOT MARK IV / 凍結剤: ETHANE / 湿度: 90 % / 凍結前の試料温度: 277 K | 
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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:  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 | 
| 撮影 | 電子線照射量: 40 e/Å2 フィルム・検出器のモデル: GATAN K3 BIOQUANTUM (6k x 4k)  | 
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解析
| ソフトウェア | 名称: PHENIX / バージョン: 1.12_2829: / 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: 2.6 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 403167 / 対称性のタイプ: POINT | ||||||||||||||||||||||||
| 原子モデル構築 | プロトコル: BACKBONE TRACE | ||||||||||||||||||||||||
| 拘束条件 | 
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ムービー
コントローラー
万見について






引用
UCSF Chimera













PDBj




Homo sapiens (ヒト)

