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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: 8wdz | |||||||||||||||||||||||||||||||||
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| タイトル | SARS-CoV-2 Omicron BQ.1 RBD complexed with human ACE2 | |||||||||||||||||||||||||||||||||
要素 |
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キーワード | VIRUS / RBD / VIRAL PROTEIN | |||||||||||||||||||||||||||||||||
| 機能・相同性 | 機能・相同性情報positive regulation of amino acid transport / angiotensin-converting enzyme 2 / positive regulation of L-proline import across plasma membrane / 加水分解酵素; プロテアーゼ; ペプチド結合加水分解酵素; 金属プロテアーゼ / angiotensin-mediated drinking behavior / positive regulation of gap junction assembly / tryptophan transport / regulation of systemic arterial blood pressure by renin-angiotensin / maternal process involved in female pregnancy / regulation of cardiac conduction ...positive regulation of amino acid transport / angiotensin-converting enzyme 2 / positive regulation of L-proline import across plasma membrane / 加水分解酵素; プロテアーゼ; ペプチド結合加水分解酵素; 金属プロテアーゼ / angiotensin-mediated drinking behavior / positive regulation of gap junction assembly / tryptophan transport / regulation of systemic arterial blood pressure by renin-angiotensin / maternal process involved in female pregnancy / regulation of cardiac conduction / peptidyl-dipeptidase activity / regulation of vasoconstriction / transporter activator activity / Metabolism of Angiotensinogen to Angiotensins / carboxypeptidase activity / angiotensin maturation / viral life cycle / receptor-mediated endocytosis of virus by host cell / Attachment and Entry / metallocarboxypeptidase activity / positive regulation of cardiac muscle contraction / regulation of cytokine production / blood vessel diameter maintenance / negative regulation of smooth muscle cell proliferation / brush border membrane / negative regulation of ERK1 and ERK2 cascade / positive regulation of reactive oxygen species metabolic process / metallopeptidase activity / endocytic vesicle membrane / regulation of cell population proliferation / virus receptor activity / regulation of inflammatory response / symbiont-mediated disruption of host tissue / Maturation of spike protein / Translation of Structural Proteins / Virion Assembly and Release / endopeptidase activity / host cell surface / host extracellular region / symbiont-mediated-mediated suppression of host tetherin activity / Induction of Cell-Cell Fusion / structural constituent of virion / Potential therapeutics for SARS / 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 / apical plasma membrane / host cell surface receptor binding / symbiont-mediated suppression of host innate immune response / cilium / endocytosis involved in viral entry into host cell / membrane raft / endoplasmic reticulum lumen / 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 / cell surface / negative regulation of transcription by RNA polymerase II / : / extracellular exosome / extracellular region / zinc ion binding / 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: 2.71 Å | |||||||||||||||||||||||||||||||||
データ登録者 | Li, W. / Xie, Y. | |||||||||||||||||||||||||||||||||
| 資金援助 | 中国, 1件
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引用 | ジャーナル: EMBO J / 年: 2024タイトル: Key mechanistic features of the trade-off between antibody escape and host cell binding in the SARS-CoV-2 Omicron variant spike proteins. 著者: Weiwei Li / Zepeng Xu / Tianhui Niu / Yufeng Xie / Zhennan Zhao / Dedong Li / Qingwen He / Wenqiao Sun / Kaiyuan Shi / Wenjing Guo / Zhen Chang / Kefang Liu / Zheng Fan / Jianxun Qi / George F Gao / ![]() 要旨: Since SARS-CoV-2 Omicron variant emerged, it is constantly evolving into multiple sub-variants, including BF.7, BQ.1, BQ.1.1, XBB, XBB.1.5 and the recently emerged BA.2.86 and JN.1. Receptor binding ...Since SARS-CoV-2 Omicron variant emerged, it is constantly evolving into multiple sub-variants, including BF.7, BQ.1, BQ.1.1, XBB, XBB.1.5 and the recently emerged BA.2.86 and JN.1. Receptor binding and immune evasion are recognized as two major drivers for evolution of the receptor binding domain (RBD) of the SARS-CoV-2 spike (S) protein. However, the underlying mechanism of interplay between two factors remains incompletely understood. Herein, we determined the structures of human ACE2 complexed with BF.7, BQ.1, BQ.1.1, XBB and XBB.1.5 RBDs. Based on the ACE2/RBD structures of these sub-variants and a comparison with the known complex structures, we found that R346T substitution in the RBD enhanced ACE2 binding upon an interaction with the residue R493, but not Q493, via a mechanism involving long-range conformation changes. Furthermore, we found that R493Q and F486V exert a balanced impact, through which immune evasion capability was somewhat compromised to achieve an optimal receptor binding. We propose a "two-steps-forward and one-step-backward" model to describe such a compromise between receptor binding affinity and immune evasion during RBD evolution of Omicron sub-variants. | |||||||||||||||||||||||||||||||||
| 履歴 |
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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 | 8wdz.cif.gz | 214.1 KB | 表示 | PDBx/mmCIF形式 |
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| PDB形式 | pdb8wdz.ent.gz | 154.8 KB | 表示 | PDB形式 |
| PDBx/mmJSON形式 | 8wdz.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/wd/8wdz ftp://data.pdbj.org/pub/pdb/validation_reports/wd/8wdz | HTTPS FTP |
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-関連構造データ
| 関連構造データ | ![]() 37468MC ![]() 8wdrC ![]() 8wdsC ![]() 8wdyC ![]() 8we0C ![]() 8we1C ![]() 8we4C 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 ( |
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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
-タンパク質 , 2種, 2分子 AB
| #1: タンパク質 | 分子量: 92556.695 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) Homo sapiens (ヒト) / 遺伝子: ACE2 / 細胞株 (発現宿主): HEK293F / 発現宿主: Homo sapiens (ヒト) / 参照: UniProt: Q9BYF1 |
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| #2: タンパク質 | 分子量: 25095.471 Da / 分子数: 1 / Fragment: receptor binding domain / 由来タイプ: 組換発現 由来: (組換発現) ![]() 遺伝子: S, 2 / Variant: BQ.1 / 細胞株 (発現宿主): HEK293F / 発現宿主: Homo sapiens (ヒト) / 参照: UniProt: P0DTC2 |
-糖 , 3種, 7分子 
| #3: 多糖 | 2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose |
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| #4: 多糖 | 2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-[alpha-L-fucopyranose-(1-6)]2-acetamido-2-deoxy-beta- ...2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-[alpha-L-fucopyranose-(1-6)]2-acetamido-2-deoxy-beta-D-glucopyranose |
| #5: 糖 | ChemComp-NAG / |
-非ポリマー , 1種, 1分子 
| #6: 化合物 | ChemComp-ZN / |
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-詳細
| 研究の焦点であるリガンドがあるか | N |
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| 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 |
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| 由来(天然) |
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| 由来(組換発現) | 生物種: Homo sapiens (ヒト) | ||||||||||||||||||||||||
| 緩衝液 | pH: 8 | ||||||||||||||||||||||||
| 試料 | 濃度: 0.2 mg/ml / 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: 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 (6k x 4k) |
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解析
| EMソフトウェア | 名称: PHENIX / カテゴリ: モデル精密化 | ||||||||||||||||||||||||
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| CTF補正 | タイプ: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||
| 3次元再構成 | 解像度: 2.71 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 101822 / 対称性のタイプ: POINT | ||||||||||||||||||||||||
| 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




Homo sapiens (ヒト)

中国, 1件
引用










PDBj






FIELD EMISSION GUN