+データを開く
-基本情報
登録情報 | データベース: PDB / ID: 8woz | ||||||
---|---|---|---|---|---|---|---|
タイトル | Cryo-EM structure of SARS-CoV RBD in complex with rabbit ACE2 | ||||||
要素 |
| ||||||
キーワード | VIRAL PROTEIN / Severe acute respiratory syndrome coronavirus / Angiotensin-converting enzyme 2 (protein) / rabbit | ||||||
機能・相同性 | 機能・相同性情報 Maturation of spike protein / Translation of Structural Proteins / Virion Assembly and Release / 加水分解酵素; プロテアーゼ; ペプチド結合加水分解酵素 / positive regulation of L-proline import across plasma membrane / angiotensin-mediated drinking behavior / tryptophan transport / positive regulation of gap junction assembly / regulation of cardiac conduction / peptidyl-dipeptidase activity ...Maturation of spike protein / Translation of Structural Proteins / Virion Assembly and Release / 加水分解酵素; プロテアーゼ; ペプチド結合加水分解酵素 / positive regulation of L-proline import across plasma membrane / angiotensin-mediated drinking behavior / tryptophan transport / positive regulation of gap junction assembly / regulation of cardiac conduction / peptidyl-dipeptidase activity / carboxypeptidase activity / Attachment and Entry / positive regulation of cardiac muscle contraction / brush border membrane / endocytosis involved in viral entry into host cell / cilium / SARS-CoV-1 activates/modulates innate immune responses / metallopeptidase activity / virus receptor activity / endopeptidase activity / suppression by virus of host tetherin activity / entry receptor-mediated virion attachment to host cell / host cell endoplasmic reticulum-Golgi intermediate compartment membrane / membrane fusion / 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 / apical plasma membrane / fusion of virus membrane with host plasma membrane / fusion of virus membrane with host endosome membrane / viral envelope / host cell plasma membrane / virion membrane / cell surface / proteolysis / extracellular space / identical protein binding / membrane / metal ion binding / cytoplasm 類似検索 - 分子機能 | ||||||
生物種 | Oryctolagus cuniculus (ウサギ) Severe acute respiratory syndrome coronavirus (SARS コロナウイルス) | ||||||
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: 3.25 Å | ||||||
データ登録者 | Li, L.J. / Shi, K.Y. / Yu, G.H. / Gao, G.F. | ||||||
資金援助 | 中国, 1件
| ||||||
引用 | ジャーナル: mBio / 年: 2024 タイトル: Structural basis of increased binding affinities of spikes from SARS-CoV-2 Omicron variants to rabbit and hare ACE2s reveals the expanding host tendency. 著者: Kaiyuan Shi / Linjie Li / Chunliang Luo / Zepeng Xu / Baihan Huang / Sufang Ma / Kefang Liu / Guanghui Yu / George F Gao / 要旨: The potential host range of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) has been expanding alongside its evolution during the pandemic, with rabbits and hares being considered ...The potential host range of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) has been expanding alongside its evolution during the pandemic, with rabbits and hares being considered important potential hosts, supported by a report of rabbit sero-prevalence in nature. We measured the binding affinities of rabbit and hare angiotensin-converting enzyme 2 (ACE2) with receptor-binding domains (RBDs) from SARS-CoV, SARS-CoV-2, and its variants and found that rabbit and hare ACE2s had broad variant tropism, with significantly enhanced affinities to Omicron BA.4/5 and its subsequent-emerged sub-variants (>10 fold). The structures of rabbit ACE2 complexed with either SARS-CoV-2 prototype (PT) or Omicron BA.4/5 spike (S) proteins were determined, thereby unveiling the importance of rabbit ACE2 Q34 in RBD-interaction and elucidating the molecular basis of the enhanced binding with Omicron BA.4/5 RBD. These results address the highly enhanced risk of rabbits infecting SARS-CoV-2 Omicron sub-variants and the importance of constant surveillance.IMPORTANCEThe severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) pandemic has swept the globe and caused immense health and economic damage. SARS-CoV-2 has demonstrated a broad host range, indicating a high risk of interspecies transmission and adaptive mutation. Therefore, constant monitoring for potential hosts is of immense importance. In this study, we found that Omicron BA.4/5 and subsequent-emerged sub-variants exhibited enhanced binding to both rabbit and hare angiotensin-converting enzyme 2 (ACE2), and we elucidated the structural mechanism of their recognition. From the structure, we found that Q34, a unique residue of rabbit ACE2 compared to other ACE2 orthologs, plays an important role in ACE2 recognition. These results address the probability of rabbits/hares being potential hosts of SARS-CoV-2 and broaden our knowledge regarding the molecular mechanism of SARS-CoV-2 interspecies transmission. | ||||||
履歴 |
|
-構造の表示
構造ビューア | 分子: MolmilJmol/JSmol |
---|
-ダウンロードとリンク
-ダウンロード
PDBx/mmCIF形式 | 8woz.cif.gz | 152.2 KB | 表示 | PDBx/mmCIF形式 |
---|---|---|---|---|
PDB形式 | pdb8woz.ent.gz | 115 KB | 表示 | PDB形式 |
PDBx/mmJSON形式 | 8woz.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 | 8woz_validation.pdf.gz | 369.7 KB | 表示 | wwPDB検証レポート |
---|---|---|---|---|
文書・詳細版 | 8woz_full_validation.pdf.gz | 378.7 KB | 表示 | |
XML形式データ | 8woz_validation.xml.gz | 16.4 KB | 表示 | |
CIF形式データ | 8woz_validation.cif.gz | 24.7 KB | 表示 | |
アーカイブディレクトリ | https://data.pdbj.org/pub/pdb/validation_reports/wo/8woz ftp://data.pdbj.org/pub/pdb/validation_reports/wo/8woz | HTTPS FTP |
-関連構造データ
関連構造データ | 37703MC 8woxC 8woyC 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) |
---|---|
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 |
|
---|---|
1 |
|
-要素
#1: タンパク質 | 分子量: 69846.312 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) Oryctolagus cuniculus (ウサギ) / 遺伝子: ACE2 / 発現宿主: Homo sapiens (ヒト) 参照: UniProt: G1TEF4, 加水分解酵素; プロテアーゼ; ペプチド結合加水分解酵素 |
---|---|
#2: タンパク質 | 分子量: 25863.234 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 (SARS コロナウイルス) 遺伝子: S, 2 / 発現宿主: Homo sapiens (ヒト) / 参照: UniProt: P59594 |
#3: 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 |
---|---|
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: Cryo-EM structure of SARS-CoV RBD in complex with rabbit ACE2 タイプ: COMPLEX / Entity ID: #1-#2 / 由来: MULTIPLE SOURCES |
---|---|
由来(天然) | 生物種: Severe acute respiratory syndrome coronavirus (SARS コロナウイルス) |
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 |
---|---|
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: OTHER |
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: 60 e/Å2 / フィルム・検出器のモデル: GATAN K3 (6k x 4k) |
-解析
EMソフトウェア | 名称: PHENIX / バージョン: 1.20.1_4487: / カテゴリ: モデル精密化 | ||||||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
CTF補正 | タイプ: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||
3次元再構成 | 解像度: 3.25 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 94460 / 対称性のタイプ: POINT | ||||||||||||||||||||||||
拘束条件 |
|