+データを開く
-基本情報
登録情報 | データベース: PDB / ID: 7xob | |||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
タイトル | SARS-CoV-2 Omicron BA.2 Variant Spike Trimer with two mouse ACE2 Bound | |||||||||||||||
要素 |
| |||||||||||||||
キーワード | VIRAL PROTEIN/HYDROLASE / VIRAL PROTEIN-HYDROLASE COMPLEX | |||||||||||||||
機能・相同性 | 機能・相同性情報 Metabolism of Angiotensinogen to Angiotensins / 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 / tryptophan transport / positive regulation of gap junction assembly / regulation of cardiac conduction / peptidyl-dipeptidase activity / maternal process involved in female pregnancy ...Metabolism of Angiotensinogen to Angiotensins / 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 / tryptophan transport / positive regulation of gap junction assembly / regulation of cardiac conduction / peptidyl-dipeptidase activity / maternal process involved in female pregnancy / carboxypeptidase activity / positive regulation of cardiac muscle contraction / negative regulation of smooth muscle cell proliferation / brush border membrane / cilium / negative regulation of ERK1 and ERK2 cascade / metallopeptidase activity / virus receptor activity / endopeptidase 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 / membrane fusion / receptor-mediated endocytosis of virus by host cell / 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 / apical plasma membrane / 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 / cell surface / proteolysis / extracellular space / identical protein binding / membrane / metal ion binding / plasma membrane / cytoplasm 類似検索 - 分子機能 | |||||||||||||||
生物種 | Severe acute respiratory syndrome coronavirus 2 (ウイルス) Mus musculus (ハツカネズミ) | |||||||||||||||
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: 3.3 Å | |||||||||||||||
データ登録者 | Xu, Y. / Wu, C. / Liu, H. / Yin, W. / Xu, H.E. | |||||||||||||||
資金援助 | 中国, 4件
| |||||||||||||||
引用 | ジャーナル: Cell Res / 年: 2022 タイトル: Structural and biochemical mechanism for increased infectivity and immune evasion of Omicron BA.2 variant compared to BA.1 and their possible mouse origins. 著者: Youwei Xu / Canrong Wu / Xiaodan Cao / Chunyin Gu / Heng Liu / Mengting Jiang / Xiaoxi Wang / Qingning Yuan / Kai Wu / Jia Liu / Deyi Wang / Xianqing He / Xueping Wang / Su-Jun Deng / H Eric Xu / Wanchao Yin / 要旨: The Omicron BA.2 variant has become a dominant infective strain worldwide. Receptor binding studies show that the Omicron BA.2 spike trimer exhibits 11-fold and 2-fold higher potency in binding to ...The Omicron BA.2 variant has become a dominant infective strain worldwide. Receptor binding studies show that the Omicron BA.2 spike trimer exhibits 11-fold and 2-fold higher potency in binding to human ACE2 than the spike trimer from the wildtype (WT) and Omicron BA.1 strains. The structure of the BA.2 spike trimer complexed with human ACE2 reveals that all three receptor-binding domains (RBDs) in the spike trimer are in open conformation, ready for ACE2 binding, thus providing a basis for the increased infectivity of the BA.2 strain. JMB2002, a therapeutic antibody that was shown to efficiently inhibit Omicron BA.1, also shows potent neutralization activities against Omicron BA.2. In addition, both BA.1 and BA.2 spike trimers are able to bind to mouse ACE2 with high potency. In contrast, the WT spike trimer binds well to cat ACE2 but not to mouse ACE2. The structures of both BA.1 and BA.2 spike trimer bound to mouse ACE2 reveal the basis for their high affinity interactions. Together, these results suggest a possible evolution pathway for Omicron BA.1 and BA.2 variants via a human-cat-mouse-human circle, which could have important implications in establishing an effective strategy for combating SARS-CoV-2 viral infections. | |||||||||||||||
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 | 7xob.cif.gz | 762.6 KB | 表示 | PDBx/mmCIF形式 |
---|---|---|---|---|
PDB形式 | pdb7xob.ent.gz | 615.3 KB | 表示 | PDB形式 |
PDBx/mmJSON形式 | 7xob.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 | 7xob_validation.pdf.gz | 1.1 MB | 表示 | wwPDB検証レポート |
---|---|---|---|---|
文書・詳細版 | 7xob_full_validation.pdf.gz | 1.2 MB | 表示 | |
XML形式データ | 7xob_validation.xml.gz | 124.2 KB | 表示 | |
CIF形式データ | 7xob_validation.cif.gz | 180.7 KB | 表示 | |
アーカイブディレクトリ | https://data.pdbj.org/pub/pdb/validation_reports/xo/7xob ftp://data.pdbj.org/pub/pdb/validation_reports/xo/7xob | HTTPS FTP |
-関連構造データ
関連構造データ | 33343MC 7xo4C 7xo5C 7xo6C 7xo7C 7xo8C 7xo9C 7xoaC 7xocC 7xodC C: 同じ文献を引用 (文献) M: このデータのモデリングに利用したマップデータ |
---|---|
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: 141065.406 Da / 分子数: 3 変異: R682G, R683S, R685S, F817P, A892P, A899P, A942P, K986P, V987P 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 / Variant: Omicron BA.2 / 細胞株 (発現宿主): HEK293 / 発現宿主: Homo sapiens (ヒト) / 参照: UniProt: P0DTC2 #2: タンパク質 | 分子量: 92460.250 Da / 分子数: 2 / 由来タイプ: 組換発現 / 由来: (組換発現) Mus musculus (ハツカネズミ) / 遺伝子: Ace2 / 発現宿主: Trichoplusia ni (イラクサキンウワバ) 参照: UniProt: Q8R0I0, angiotensin-converting enzyme 2, 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 #3: 糖 | ChemComp-NAG / #4: 化合物 | 研究の焦点であるリガンドがあるか | N | |
---|
-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 |
| ||||||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
由来(天然) |
| ||||||||||||||||||||||||
由来(組換発現) |
| ||||||||||||||||||||||||
緩衝液 | pH: 7.4 | ||||||||||||||||||||||||
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 / 湿度: 100 % |
-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: FLOOD BEAM |
電子レンズ | モード: BRIGHT FIELD / 最大 デフォーカス(公称値): 2500 nm / 最小 デフォーカス(公称値): 500 nm |
試料ホルダ | 凍結剤: NITROGEN |
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) |
-解析
CTF補正 | タイプ: NONE |
---|---|
3次元再構成 | 解像度: 3.3 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 99787 / 対称性のタイプ: POINT |
原子モデル構築 | プロトコル: RIGID BODY FIT / 空間: REAL |