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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: 9mr2 | ||||||
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| タイトル | SARS-CoV-2 S2 monomer in complex with NICA01A-1401 Fab | ||||||
要素 |
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キーワード | VIRUS / SARS-CoV-2 / Spike / S2 / COVID / monoclonal antibody / complex / Viral protein / Viral protein-immune system complex | ||||||
| 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 region / symbiont-mediated-mediated suppression of host tetherin activity / Induction of Cell-Cell Fusion / structural constituent of virion / positive regulation of viral entry into host cell ...symbiont-mediated disruption of host tissue / Maturation of spike protein / Translation of Structural Proteins / Virion Assembly and Release / host cell surface / host extracellular region / symbiont-mediated-mediated suppression of host tetherin activity / Induction of Cell-Cell Fusion / structural constituent of virion / positive regulation of viral entry into host cell / membrane fusion / host cell endoplasmic reticulum-Golgi intermediate compartment membrane / Attachment and Entry / entry receptor-mediated virion attachment to host cell / receptor-mediated virion attachment to host cell / host cell surface receptor binding / symbiont-mediated suppression of host innate immune response / endocytosis involved in viral entry into host cell / receptor ligand activity / 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 / host cell plasma membrane / SARS-CoV-2 activates/modulates innate and adaptive immune responses / virion membrane / membrane / identical protein binding / plasma membrane 類似検索 - 分子機能 | ||||||
| 生物種 | Homo sapiens (ヒト)![]() | ||||||
| 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: 3.79 Å | ||||||
データ登録者 | Park, S. / Bangaru, B. / Ward, A.B. | ||||||
| 資金援助 | 米国, 1件
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引用 | ジャーナル: J Exp Med / 年: 2025タイトル: Common cold embecovirus imprinting primes broadly neutralizing antibody responses to SARS-CoV-2 S2. 著者: Siriruk Changrob / Atsuhiro Yasuhara / Suncheol Park / Sandhya Bangaru / Lei Li / Chloe A Troxell / Peter J Halfmann / Steven A Erickson / Nicholas J Catanzaro / Meng Yuan / Panpan Zhou / Min ...著者: Siriruk Changrob / Atsuhiro Yasuhara / Suncheol Park / Sandhya Bangaru / Lei Li / Chloe A Troxell / Peter J Halfmann / Steven A Erickson / Nicholas J Catanzaro / Meng Yuan / Panpan Zhou / Min Huang / G Dewey Wilbanks / Joshua J C McGrath / Gagandeep Singh / Sean A Nelson / Yanbin Fu / Nai-Ying Zheng / Sofia M Carayannopoulos / Haley L Dugan / Dustin G Shaw / Christopher T Stamper / Maria Lucia L Madariaga / Florian Krammer / Raiees Andrabi / Dennis R Burton / Andrew B Ward / Ian A Wilson / Yoshihiro Kawaoka / Patrick C Wilson / ![]() 要旨: The S2 subunit of the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) spike is highly conserved across coronavirus strains and therefore is a potential pan-coronavirus vaccine target. ...The S2 subunit of the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) spike is highly conserved across coronavirus strains and therefore is a potential pan-coronavirus vaccine target. However, antibodies targeting this region are typically non-neutralizing. We report herein that S2-targeting antibodies from patients who recovered from SARS-CoV-2 infection bound only closely related sarbecovirus subgenus strains and, like most known S2 antibodies, none of these were neutralizing. In contrast, first-exposure, severe acutely infected COVID-19 patients predominantly induced back-boosted antibody-secreting cells imprinted against past common cold coronavirus strain OC43 that were cross-reactive to as many as five subgenera of betacoronavirus strains and gave rise to antibodies that were neutralizing and protective. The antibodies targeted two different sites: one defined by competition with stem helix antibodies, and the second to an underdescribed epitope at the apex of S2. These findings suggest that S2-targeted vaccines could strategically exploit controlled OC43 priming followed by SARS-CoV-2 boosting to enhance the breadth and quality of protective antibody responses. | ||||||
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構造の表示
| 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 | 9mr2.cif.gz | 103.5 KB | 表示 | PDBx/mmCIF形式 |
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| PDB形式 | pdb9mr2.ent.gz | 61.6 KB | 表示 | PDB形式 |
| PDBx/mmJSON形式 | 9mr2.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
| アーカイブディレクトリ | https://data.pdbj.org/pub/pdb/validation_reports/mr/9mr2 ftp://data.pdbj.org/pub/pdb/validation_reports/mr/9mr2 | HTTPS FTP |
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-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: 抗体 | 分子量: 13621.221 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) Homo sapiens (ヒト) / 細胞株 (発現宿主): HEK293F / 発現宿主: Homo sapiens (ヒト) |
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| #2: 抗体 | 分子量: 11453.561 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) Homo sapiens (ヒト) / 細胞株 (発現宿主): HEK293F / 発現宿主: Homo sapiens (ヒト) |
| #3: タンパク質 | 分子量: 52069.832 Da / 分子数: 1 Mutation: F817P, G880C, F888C, A892P, A899P, A942P, T912P, K986P, V987P, T1117C, D1139C 由来タイプ: 組換発現 由来: (組換発現) ![]() 遺伝子: S, 2 / 細胞株 (発現宿主): HEK293F / 発現宿主: Homo sapiens (ヒト) / 参照: UniProt: P0DTC2 |
| 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 |
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試料調製
| 構成要素 | 名称: Structure of SARS-CoV-2 S2 monomer in complex with NICA01A-1401 Fab タイプ: COMPLEX / Entity ID: all / 由来: RECOMBINANT | |||||||||||||||
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| 分子量 | 実験値: NO | |||||||||||||||
| 由来(天然) | 生物種: Homo sapiens (ヒト) | |||||||||||||||
| 由来(組換発現) | 生物種: Homo sapiens (ヒト) | |||||||||||||||
| 緩衝液 | pH: 8 | |||||||||||||||
| 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 | |||||||||||||||
| 試料支持 | グリッドの材料: GOLD / グリッドのサイズ: 300 divisions/in. / グリッドのタイプ: UltrAuFoil R1.2/1.3 | |||||||||||||||
| 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 |
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電子顕微鏡撮影
| 顕微鏡 | モデル: TFS GLACIOS |
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| 電子銃 | 電子線源: FIELD EMISSION GUN / 加速電圧: 200 kV / 照射モード: FLOOD BEAM |
| 電子レンズ | モード: BRIGHT FIELD / 倍率(公称値): 190000 X / 最大 デフォーカス(公称値): 1800 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 | 電子線照射量: 45 e/Å2 フィルム・検出器のモデル: FEI FALCON IV (4k x 4k) |
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解析
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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: 3.79 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 115033 / 対称性のタイプ: POINT | |||||||||||||||||||||||||||||||||
| 原子モデル構築 | 空間: REAL | |||||||||||||||||||||||||||||||||
| 原子モデル構築 | PDB-ID: 6XR8 Accession code: 6XR8 / Source name: PDB / タイプ: experimental model | |||||||||||||||||||||||||||||||||
| 精密化 | 交差検証法: NONE 立体化学のターゲット値: GeoStd + Monomer Library + CDL v1.2 | |||||||||||||||||||||||||||||||||
| 原子変位パラメータ | Biso mean: 51.68 Å2 | |||||||||||||||||||||||||||||||||
| 拘束条件 |
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万見について




Homo sapiens (ヒト)

米国, 1件
引用





PDBj





FIELD EMISSION GUN
