+データを開く
-基本情報
登録情報 | データベース: PDB / ID: 7yqv | ||||||
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タイトル | pH 5.5 SARS-CoV-2 BA.2.75 S Trimer (1 RBD Up) | ||||||
要素 | Spike glycoprotein | ||||||
キーワード | STRUCTURAL PROTEIN / SARS-CoV-2 / BA.2.75 / pH5.5 / spike | ||||||
機能・相同性 | 機能・相同性情報 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 ...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 / identical protein binding / membrane / plasma membrane 類似検索 - 分子機能 | ||||||
生物種 | Severe acute respiratory syndrome coronavirus 2 (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: 3.58 Å | ||||||
データ登録者 | Wang, L. | ||||||
資金援助 | 1件
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引用 | ジャーナル: Cell Host Microbe / 年: 2022 タイトル: Characterization of the enhanced infectivity and antibody evasion of Omicron BA.2.75. 著者: Yunlong Cao / Weiliang Song / Lei Wang / Pan Liu / Can Yue / Fanchong Jian / Yuanling Yu / Ayijiang Yisimayi / Peng Wang / Yao Wang / Qianhui Zhu / Jie Deng / Wangjun Fu / Lingling Yu / Na ...著者: Yunlong Cao / Weiliang Song / Lei Wang / Pan Liu / Can Yue / Fanchong Jian / Yuanling Yu / Ayijiang Yisimayi / Peng Wang / Yao Wang / Qianhui Zhu / Jie Deng / Wangjun Fu / Lingling Yu / Na Zhang / Jing Wang / Tianhe Xiao / Ran An / Jing Wang / Lu Liu / Sijie Yang / Xiao Niu / Qingqing Gu / Fei Shao / Xiaohua Hao / Bo Meng / Ravindra Kumar Gupta / Ronghua Jin / Youchun Wang / Xiaoliang Sunney Xie / Xiangxi Wang / 要旨: Recently emerged SARS-CoV-2 Omicron subvariant, BA.2.75, displayed a growth advantage over circulating BA.2.38, BA.2.76, and BA.5 in India. However, the underlying mechanisms for enhanced ...Recently emerged SARS-CoV-2 Omicron subvariant, BA.2.75, displayed a growth advantage over circulating BA.2.38, BA.2.76, and BA.5 in India. However, the underlying mechanisms for enhanced infectivity, especially compared with BA.5, remain unclear. Here, we show that BA.2.75 exhibits substantially higher affinity for host receptor angiotensin-converting enzyme 2 (ACE2) than BA.5 and other variants. Structural analyses of BA.2.75 spike shows its decreased thermostability and increased frequency of the receptor binding domain (RBD) in the "up" conformation under acidic conditions, suggesting enhanced low-pH-endosomal cell entry. Relative to BA.4/BA.5, BA.2.75 exhibits reduced evasion of humoral immunity from BA.1/BA.2 breakthrough-infection convalescent plasma but greater evasion of Delta breakthrough-infection convalescent plasma. BA.5 breakthrough-infection plasma also exhibits weaker neutralization against BA.2.75 than BA.5, mainly due to BA.2.75's distinct neutralizing antibody (NAb) escape pattern. Antibody therapeutics Evusheld and Bebtelovimab remain effective against BA.2.75. These results suggest BA.2.75 may prevail after BA.4/BA.5, and its increased receptor-binding capability could support further immune-evasive mutations. | ||||||
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 | 7yqv.cif.gz | 589.8 KB | 表示 | PDBx/mmCIF形式 |
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PDB形式 | pdb7yqv.ent.gz | 485.9 KB | 表示 | PDB形式 |
PDBx/mmJSON形式 | 7yqv.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 | 7yqv_validation.pdf.gz | 1.5 MB | 表示 | wwPDB検証レポート |
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文書・詳細版 | 7yqv_full_validation.pdf.gz | 1.5 MB | 表示 | |
XML形式データ | 7yqv_validation.xml.gz | 97.9 KB | 表示 | |
CIF形式データ | 7yqv_validation.cif.gz | 143.5 KB | 表示 | |
アーカイブディレクトリ | https://data.pdbj.org/pub/pdb/validation_reports/yq/7yqv ftp://data.pdbj.org/pub/pdb/validation_reports/yq/7yqv | HTTPS FTP |
-関連構造データ
関連構造データ | 34036MC 7yqtC 7yquC 7yqwC 7yqxC 7yqyC 7yqzC 7yr0C 7yr1C 7yr2C 7yr3C 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: 141125.547 Da / 分子数: 3 変異: R683A, R685A, F817P, A892P, A899P, A942A, 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 / 細胞株 (発現宿主): HEK293 / 発現宿主: Homo sapiens (ヒト) / 参照: UniProt: P0DTC2 #2: 多糖 | 2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose #3: 糖 | ChemComp-NAG / 研究の焦点であるリガンドがあるか | N | |
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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 |
-試料調製
構成要素 | 名称: BA.2.75 Spike trimer / タイプ: COMPLEX / Entity ID: #1 / 由来: RECOMBINANT |
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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: 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 |
-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): 2700 nm / 最小 デフォーカス(公称値): 1500 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
ソフトウェア | 名称: PHENIX / バージョン: 1.19.2_4158: / 分類: 精密化 | ||||||||||||||||||||||||
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CTF補正 | タイプ: NONE | ||||||||||||||||||||||||
3次元再構成 | 解像度: 3.58 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 596312 / 対称性のタイプ: POINT | ||||||||||||||||||||||||
拘束条件 |
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