+データを開く
-基本情報
登録情報 | データベース: PDB / ID: 7e3k | ||||||
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タイトル | Ultrapotent SARS-CoV-2 neutralizing antibodies with protective efficacy against newly emerged mutational variants | ||||||
要素 |
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キーワード | VIRAL PROTEIN / COVID-19 / spike glycoprotein / virus / antibody | ||||||
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 / Attachment and Entry / membrane fusion / positive regulation of viral entry into host cell / receptor-mediated virion attachment to host cell / receptor ligand activity / symbiont-mediated suppression of host innate immune response / host cell surface receptor binding / 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) 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: 3.9 Å | ||||||
データ登録者 | Guo, H. / Li, T. / Liu, F. / Gao, Y. / Ji, X. / Yang, H. | ||||||
引用 | ジャーナル: Nat Commun / 年: 2021 タイトル: Potent SARS-CoV-2 neutralizing antibodies with protective efficacy against newly emerged mutational variants. 著者: Tingting Li / Xiaojian Han / Chenjian Gu / Hangtian Guo / Huajun Zhang / Yingming Wang / Chao Hu / Kai Wang / Fengjiang Liu / Feiyang Luo / Yanan Zhang / Jie Hu / Wang Wang / Shenglong Li / ...著者: Tingting Li / Xiaojian Han / Chenjian Gu / Hangtian Guo / Huajun Zhang / Yingming Wang / Chao Hu / Kai Wang / Fengjiang Liu / Feiyang Luo / Yanan Zhang / Jie Hu / Wang Wang / Shenglong Li / Yanan Hao / Meiying Shen / Jingjing Huang / Yingyi Long / Shuyi Song / Ruixin Wu / Song Mu / Qian Chen / Fengxia Gao / Jianwei Wang / Shunhua Long / Luo Li / Yang Wu / Yan Gao / Wei Xu / Xia Cai / Di Qu / Zherui Zhang / Hongqing Zhang / Na Li / Qingzhu Gao / Guiji Zhang / Changlong He / Wei Wang / Xiaoyun Ji / Ni Tang / Zhenghong Yuan / Youhua Xie / Haitao Yang / Bo Zhang / Ailong Huang / Aishun Jin / 要旨: Accumulating mutations in the SARS-CoV-2 Spike (S) protein can increase the possibility of immune escape, challenging the present COVID-19 prophylaxis and clinical interventions. Here, 3 receptor ...Accumulating mutations in the SARS-CoV-2 Spike (S) protein can increase the possibility of immune escape, challenging the present COVID-19 prophylaxis and clinical interventions. Here, 3 receptor binding domain (RBD) specific monoclonal antibodies (mAbs), 58G6, 510A5 and 13G9, with high neutralizing potency blocking authentic SARS-CoV-2 virus display remarkable efficacy against authentic B.1.351 virus. Surprisingly, structural analysis has revealed that 58G6 and 13G9 both recognize the steric region S on the RBD, overlapping the E484K mutation presented in B.1.351. Also, 58G6 directly binds to another region S in the RBD. Significantly, 58G6 and 510A5 both demonstrate prophylactic efficacy against authentic SARS-CoV-2 and B.1.351 viruses in the transgenic mice expressing human ACE2 (hACE2), protecting weight loss and reducing virus loads. Together, we have evidenced 2 potent neutralizing Abs with unique mechanism targeting authentic SARS-CoV-2 mutants, which can be promising candidates to fulfill the urgent needs for the prolonged COVID-19 pandemic. | ||||||
履歴 |
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-構造の表示
ムービー |
ムービービューア |
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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 | 7e3k.cif.gz | 732.4 KB | 表示 | PDBx/mmCIF形式 |
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PDB形式 | pdb7e3k.ent.gz | 607.4 KB | 表示 | PDB形式 |
PDBx/mmJSON形式 | 7e3k.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/e3/7e3k ftp://data.pdbj.org/pub/pdb/validation_reports/e3/7e3k | HTTPS FTP |
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-関連構造データ
-リンク
-集合体
登録構造単位 |
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-要素
#1: タンパク質 | 分子量: 142319.219 Da / 分子数: 3 / 変異: R682G, R683S, R685S, 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: 抗体 | 分子量: 23563.473 Da / 分子数: 3 / 由来タイプ: 組換発現 / 由来: (組換発現) Homo sapiens (ヒト) / 細胞株 (発現宿主): HEK293 / 発現宿主: Homo sapiens (ヒト) #3: 抗体 | 分子量: 23587.186 Da / 分子数: 3 / 由来タイプ: 組換発現 / 由来: (組換発現) Homo sapiens (ヒト) / 細胞株 (発現宿主): HEK293 / 発現宿主: Homo sapiens (ヒト) #4: 糖 | ChemComp-NAG / 研究の焦点であるリガンドがあるか | Y | |
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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 |
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由来(天然) |
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由来(組換発現) |
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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: SPOT SCAN |
電子レンズ | モード: BRIGHT FIELD |
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
CTF補正 | タイプ: PHASE FLIPPING AND AMPLITUDE CORRECTION |
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3次元再構成 | 解像度: 3.9 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 52880 / クラス平均像の数: 1 / 対称性のタイプ: POINT |