+データを開く
-基本情報
登録情報 | データベース: PDB / ID: 8ifz | ||||||
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タイトル | Cryo-EM structure of SARS-CoV-2 Omicron BA.4/5 spike protein receptor-binding domain in complex with white-tailed deer ACE2 | ||||||
要素 |
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キーワード | VIRAL PROTEIN/HYDROLASE / complex / VIRAL PROTEIN / VIRAL PROTEIN-HYDROLASE complex | ||||||
機能・相同性 | 機能・相同性情報 加水分解酵素; プロテアーゼ; ペプチド結合加水分解酵素 / peptidyl-dipeptidase activity / carboxypeptidase activity / metallopeptidase activity / Maturation of spike protein / viral translation / Translation of Structural Proteins / Virion Assembly and Release / host cell surface / host extracellular space ...加水分解酵素; プロテアーゼ; ペプチド結合加水分解酵素 / peptidyl-dipeptidase activity / carboxypeptidase activity / metallopeptidase activity / 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 / proteolysis / extracellular space / identical protein binding / membrane / metal ion binding / plasma membrane 類似検索 - 分子機能 | ||||||
生物種 | Severe acute respiratory syndrome coronavirus 2 (ウイルス) Odocoileus virginianus (オジロジカ) | ||||||
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: 2.85 Å | ||||||
データ登録者 | Han, P. / Meng, Y.M. / Qi, J.X. | ||||||
資金援助 | 中国, 1件
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引用 | ジャーナル: J Virol / 年: 2023 タイトル: Structural basis of white-tailed deer, , ACE2 recognizing all the SARS-CoV-2 variants of concern with high affinity. 著者: Pu Han / Yumin Meng / Di Zhang / Zepeng Xu / Zhiyuan Li / Xiaoqian Pan / Zhennan Zhao / Linjie Li / Lingfeng Tang / Jianxun Qi / Kefang Liu / George F Gao / 要旨: SARS-CoV-2 has been expanding its host range, among which the white-tailed deer (WTD), became the first wildlife species infected on a large scale and might serve as a host reservoir for variants of ...SARS-CoV-2 has been expanding its host range, among which the white-tailed deer (WTD), became the first wildlife species infected on a large scale and might serve as a host reservoir for variants of concern (VOCs) in case no longer circulating in humans. In this study, we comprehensively assessed the binding of the WTD angiotensin-converting enzyme 2 (ACE2) receptor to the spike (S) receptor-binding domains (RBDs) from the SARS-CoV-2 prototype (PT) strain and multiple variants. We found that WTD ACE2 could be broadly recognized by all of the tested RBDs. We further determined the complex structures of WTD ACE2 with PT, Omicron BA.1, and BA.4/5 S trimer. Detailed structural comparison revealed the important roles of RBD residues on 486, 498, and 501 sites for WTD ACE2 binding. This study deepens our understanding of the interspecies transmission mechanisms of SARS-CoV-2 and further addresses the importance of constant monitoring on SARS-CoV-2 infections in wild animals. IMPORTANCE Even if we manage to eliminate the virus among humans, it will still circulate among wildlife and continuously be transmitted back to humans. A recent study indicated that WTD may serve as reservoir for nearly extinct SARS-CoV-2 strains. Therefore, it is critical to evaluate the binding abilities of SARS-CoV-2 variants to the WTD ACE2 receptor and elucidate the molecular mechanisms of binding of the RBDs to assess the risk of spillback events. | ||||||
履歴 |
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-構造の表示
構造ビューア | 分子: MolmilJmol/JSmol |
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-ダウンロードとリンク
-ダウンロード
PDBx/mmCIF形式 | 8ifz.cif.gz | 210.5 KB | 表示 | PDBx/mmCIF形式 |
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PDB形式 | pdb8ifz.ent.gz | 155.5 KB | 表示 | PDB形式 |
PDBx/mmJSON形式 | 8ifz.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 | 8ifz_validation.pdf.gz | 1.2 MB | 表示 | wwPDB検証レポート |
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文書・詳細版 | 8ifz_full_validation.pdf.gz | 1.2 MB | 表示 | |
XML形式データ | 8ifz_validation.xml.gz | 47 KB | 表示 | |
CIF形式データ | 8ifz_validation.cif.gz | 68 KB | 表示 | |
アーカイブディレクトリ | https://data.pdbj.org/pub/pdb/validation_reports/if/8ifz ftp://data.pdbj.org/pub/pdb/validation_reports/if/8ifz | HTTPS FTP |
-関連構造データ
関連構造データ | 35427MC 8hfxC 8hfyC 8hfzC 8hg0C 8ifyC M: このデータのモデリングに利用したマップデータ C: 同じ文献を引用 (文献) |
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類似構造データ | 類似検索 - 機能・相同性F&H 検索 |
-リンク
-集合体
登録構造単位 |
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1 |
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-要素
#1: タンパク質 | 分子量: 26933.758 Da / 分子数: 1 / 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 | ||||||
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#2: タンパク質 | 分子量: 76530.477 Da / 分子数: 1 / 由来タイプ: 組換発現 由来: (組換発現) Odocoileus virginianus (オジロジカ) 遺伝子: ACE2 / 発現宿主: Homo sapiens (ヒト) / 参照: UniProt: A0A6J0Z472 | ||||||
#3: 糖 | ChemComp-NAG / #4: 化合物 | ChemComp-ZN / | 研究の焦点であるリガンドがあるか | Y | 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 |
-試料調製
構成要素 | 名称: SARS-CoV-2 Omicron BA.4/5 spike protein receptor-binding domain in complex with white-tailed deer ACE2 タイプ: COMPLEX / Entity ID: #1-#2 / 由来: MULTIPLE SOURCES |
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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: 8 |
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 |
-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 / 最大 デフォーカス(公称値): 2000 nm / 最小 デフォーカス(公称値): 1000 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 BIOQUANTUM (6k x 4k) |
-解析
CTF補正 | タイプ: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||
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3次元再構成 | 解像度: 2.85 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 294102 / 対称性のタイプ: POINT | ||||||||||||||||||||||||
拘束条件 |
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