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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: 11hw | ||||||||||||||||||||||||
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| タイトル | SARS-CoV-2 spike S2 trimer stabilized in the early fusion intermediate conformation (E-FICs-v3) bound to C77G12 (Fab local refinement) | ||||||||||||||||||||||||
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キーワード | VIRAL PROTEIN / S2prime / coronavirus / SARS-CoV-2 / spike / fusion / entry / antiviral / Structural Genomics / Seattle Structural Genomics Center for Infectious Disease / SSGCID / VIRAL PROTEIN complex / C77G12 | ||||||||||||||||||||||||
| 機能・相同性 | 機能・相同性情報SUMO is conjugated to E1 (UBA2:SAE1) / SUMOylation of nuclear envelope proteins / SUMO is transferred from E1 to E2 (UBE2I, UBC9) / SUMO is proteolytically processed / SUMOylation of SUMOylation proteins / SUMOylation of transcription factors / SUMOylation of transcription cofactors / Postmitotic nuclear pore complex (NPC) reformation / septin ring / SUMOylation of DNA damage response and repair proteins ...SUMO is conjugated to E1 (UBA2:SAE1) / SUMOylation of nuclear envelope proteins / SUMO is transferred from E1 to E2 (UBE2I, UBC9) / SUMO is proteolytically processed / SUMOylation of SUMOylation proteins / SUMOylation of transcription factors / SUMOylation of transcription cofactors / Postmitotic nuclear pore complex (NPC) reformation / septin ring / SUMOylation of DNA damage response and repair proteins / Transcriptional and post-translational regulation of MITF-M expression and activity / SUMOylation of RNA binding proteins / SUMOylation of DNA replication proteins / SUMOylation of chromatin organization proteins / ubiquitin-like protein ligase binding / protein sumoylation / condensed nuclear chromosome / protein tag activity / symbiont-mediated disruption of host tissue / Maturation of spike protein / Translation of Structural Proteins / Virion Assembly and Release / host cell surface / Lectin pathway of complement activation / 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 / Initial triggering of complement / 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 / nucleus / 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: 2.8 Å | ||||||||||||||||||||||||
データ登録者 | McCallum, M. / Seattle Structural Genomics Center for Infectious Disease (SSGCID) / Veesler, D. | ||||||||||||||||||||||||
| 資金援助 | 米国, 1件
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引用 | ジャーナル: Nat Struct Mol Biol / 年: 2026タイトル: TMPRSS2-mediated coronavirus spike activation and inhibition. 著者: Matthew McCallum / James Brett Case / Jack T Brown / Young-Jun Park / Jimin Lee / Emmajay Sutherland / Anupriya Aggarwal / Cecily Gibson / Florian A Lempp / Cameron Stewart / M Alejandra ...著者: Matthew McCallum / James Brett Case / Jack T Brown / Young-Jun Park / Jimin Lee / Emmajay Sutherland / Anupriya Aggarwal / Cecily Gibson / Florian A Lempp / Cameron Stewart / M Alejandra Tortorici / Shilpa Sanapala / Jun Siong Low / Daniel Asarnow / Dana Bohan / Exequiel Dellota / Benjamin Merz / Bhavna Chawla / Swagata Kar / Antonio Lanzavecchia / Federica Sallusto / Nicholas M Riley / Stuart Turville / Lisa Purcell / Michael S Diamond / David Veesler / ![]() 要旨: The protease TMPRSS2 facilitates coronavirus infections, yet its mechanism of viral glycoprotein recognition remains unclear. Here we show that, following ACE2 engagement of the SARS-CoV-2 spike (S) ...The protease TMPRSS2 facilitates coronavirus infections, yet its mechanism of viral glycoprotein recognition remains unclear. Here we show that, following ACE2 engagement of the SARS-CoV-2 spike (S) inducing the early fusion intermediate conformation (E-FIC), TMPRSS2 cleaves the R815 S' site and promotes fusogenic conformational changes leading to viral entry. We unveil TMPRSS2 recognition of S', identify key residues modulating binding specificity and demonstrate that S' site-directed broadly neutralizing antibodies target E-FIC and inhibit viral entry by blocking TMPRSS2 access. We computationally designed stabilized E-FIC as a vaccine candidate, overcoming the transient nature of this state. We describe a TMPRSS2-directed monoclonal antibody inhibiting several coronaviruses, including SARS-CoV-2 variants and protecting mice against SARS-CoV-2 challenge. These results outline the mechanistic role of TMPRSS2 and S' site-directed antibodies in coronavirus entry. | ||||||||||||||||||||||||
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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 | 11hw.cif.gz | 328.6 KB | 表示 | PDBx/mmCIF形式 |
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| PDB形式 | pdb11hw.ent.gz | 236.2 KB | 表示 | PDB形式 |
| PDBx/mmJSON形式 | 11hw.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/1h/11hw ftp://data.pdbj.org/pub/pdb/validation_reports/1h/11hw | HTTPS FTP |
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-関連構造データ
| 関連構造データ | ![]() 75705MC ![]() 11hkC ![]() 11hlC ![]() 11hnC ![]() 9opqC ![]() 9oprC ![]() 9yyuC ![]() 9yyvC ![]() 9z3jC ![]() 9z3kC C: 同じ文献を引用 ( M: このデータのモデリングに利用したマップデータ |
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| 類似構造データ | 類似検索 - 機能・相同性 F&H 検索 |
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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: 67787.180 Da / 分子数: 3 / 由来タイプ: 組換発現 詳細: E-FICS-v3 encodes an azurocidin signal peptide, a serine residue, a SUMO tag (Uniprot: Q12306 1-94), an enterokinase cleavage site, a TGTGS linker, redesigned equine infectious anemia virus ...詳細: E-FICS-v3 encodes an azurocidin signal peptide, a serine residue, a SUMO tag (Uniprot: Q12306 1-94), an enterokinase cleavage site, a TGTGS linker, redesigned equine infectious anemia virus gp45 HR1 (QSNAESVQNHTFEVLNNTIRALELILRKLEILYEMILQLHE), a designed EVEAIQKAI linker, SARS-CoV-2 S residues 914-1131 (corresponding roughly to the HR1-CH-beta-H-CD region and with the D985A substitution), a threonine residue, SARS-CoV-2 S residues 703-833 (corresponding roughly to the beta-UH-SCR region), a designed linker (TIDKEK), redesigned equine infectious anemia virus gp45 HR2 (WKEWRKEMENLTKEIKETLEEARKTLKQAEETFKTPSSG), a GT linker, a second enterokinase cleavage site, a modified AVI tag (TGSLNDIFEAQKIEWHE), a QGS linker, and a C-terminal octahistidine tag 由来: (組換発現) ![]() ![]() 遺伝子: SMT3, YDR510W, D9719.15, S, 2 / 発現宿主: Homo sapiens (ヒト) / 参照: UniProt: Q12306, UniProt: P0DTC2#2: 抗体 | 分子量: 24069.887 Da / 分子数: 3 / 由来タイプ: 組換発現 / 由来: (組換発現) Homo sapiens (ヒト) / 発現宿主: Homo sapiens (ヒト)#3: 抗体 | 分子量: 23175.650 Da / 分子数: 3 / 由来タイプ: 組換発現 / 由来: (組換発現) Homo sapiens (ヒト) / 発現宿主: Homo sapiens (ヒト)#4: 糖 | ChemComp-NAG / #5: 水 | ChemComp-HOH / | 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 S2 trimer stabilized in the early fusion intermediate conformation by circular permutation and clamping by modified EIAV gp45m plus C77G12 Fab タイプ: COMPLEX / Entity ID: #1-#3 / 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: 7.5 |
| 試料 | 包埋: NO / シャドウイング: NO / 染色: NO / 凍結: YES |
| 急速凍結 | 凍結剤: ETHANE |
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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: TFS 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 / 最大 デフォーカス(公称値): 2700 nm / 最小 デフォーカス(公称値): 200 nm |
| 撮影 | 電子線照射量: 50 e/Å2 / フィルム・検出器のモデル: GATAN K3 (6k x 4k) |
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解析
| EMソフトウェア |
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| CTF補正 | タイプ: PHASE FLIPPING AND AMPLITUDE CORRECTION | |||||||||
| 3次元再構成 | 解像度: 2.8 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 225859 / 対称性のタイプ: POINT |
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万見について






Homo sapiens (ヒト)
米国, 1件
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FIELD EMISSION GUN