+データを開く
-基本情報
登録情報 | データベース: EMDB / ID: EMD-24060 | |||||||||
---|---|---|---|---|---|---|---|---|---|---|
タイトル | Structure of the SARS-CoV-2 Spike trimer with all RBDs down in complex with the Fab fragment of human neutralizing antibody clone 6 | |||||||||
マップデータ | ||||||||||
試料 |
| |||||||||
キーワード | viral protein / antibody / VIRAL PROTEIN-Immune System complex | |||||||||
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) / Homo sapiens (ヒト) | |||||||||
手法 | 単粒子再構成法 / クライオ電子顕微鏡法 / 解像度: 2.97 Å | |||||||||
データ登録者 | Hu Y / Xiong Y | |||||||||
引用 | ジャーナル: bioRxiv / 年: 2021 タイトル: Monospecific and bispecific monoclonal SARS-CoV-2 neutralizing antibodies that maintain potency against B.1.617. 著者: Lei Peng / Yingxia Hu / Madeleine C Mankowski / Ping Ren / Rita E Chen / Jin Wei / Min Zhao / Tongqing Li / Therese Tripler / Lupeng Ye / Ryan D Chow / Zhenhao Fang / Chunxiang Wu / Matthew B ...著者: Lei Peng / Yingxia Hu / Madeleine C Mankowski / Ping Ren / Rita E Chen / Jin Wei / Min Zhao / Tongqing Li / Therese Tripler / Lupeng Ye / Ryan D Chow / Zhenhao Fang / Chunxiang Wu / Matthew B Dong / Matthew Cook / Guilin Wang / Paul Clark / Bryce Nelson / Daryl Klein / Richard Sutton / Michael S Diamond / Craig B Wilen / Yong Xiong / Sidi Chen / 要旨: COVID-19 pathogen SARS-CoV-2 has infected hundreds of millions and caused over 5 million deaths to date. Although multiple vaccines are available, breakthrough infections occur especially by emerging ...COVID-19 pathogen SARS-CoV-2 has infected hundreds of millions and caused over 5 million deaths to date. Although multiple vaccines are available, breakthrough infections occur especially by emerging variants. Effective therapeutic options such as monoclonal antibodies (mAbs) are still critical. Here, we report the development, cryo-EM structures, and functional analyses of mAbs that potently neutralize SARS-CoV-2 variants of concern. By high-throughput single cell sequencing of B cells from spike receptor binding domain (RBD) immunized animals, we identified two highly potent SARS-CoV-2 neutralizing mAb clones that have single-digit nanomolar affinity and low-picomolar avidity, and generated a bispecific antibody. Lead antibodies showed strong inhibitory activity against historical SARS-CoV-2 and several emerging variants of concern. We solved several cryo-EM structures at ∼3 Å resolution of these neutralizing antibodies in complex with prefusion spike trimer ectodomain, and revealed distinct epitopes, binding patterns, and conformations. The lead clones also showed potent efficacy against authentic SARS-CoV-2 in both prophylactic and therapeutic settings. We also generated and characterized a humanized antibody to facilitate translation and drug development. The humanized clone also has strong potency against both the original virus and the B.1.617.2 Delta variant. These mAbs expand the repertoire of therapeutics against SARS-CoV-2 and emerging variants. | |||||||||
履歴 |
|
-構造の表示
ムービー |
ムービービューア |
---|---|
構造ビューア | EMマップ: SurfViewMolmilJmol/JSmol |
添付画像 |
-ダウンロードとリンク
-EMDBアーカイブ
マップデータ | emd_24060.map.gz | 6.3 MB | EMDBマップデータ形式 | |
---|---|---|---|---|
ヘッダ (付随情報) | emd-24060-v30.xml emd-24060.xml | 14.1 KB 14.1 KB | 表示 表示 | EMDBヘッダ |
画像 | emd_24060.png | 273.6 KB | ||
Filedesc metadata | emd-24060.cif.gz | 6.6 KB | ||
アーカイブディレクトリ | http://ftp.pdbj.org/pub/emdb/structures/EMD-24060 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-24060 | HTTPS FTP |
-検証レポート
文書・要旨 | emd_24060_validation.pdf.gz | 382.1 KB | 表示 | EMDB検証レポート |
---|---|---|---|---|
文書・詳細版 | emd_24060_full_validation.pdf.gz | 381.7 KB | 表示 | |
XML形式データ | emd_24060_validation.xml.gz | 7 KB | 表示 | |
CIF形式データ | emd_24060_validation.cif.gz | 8.1 KB | 表示 | |
アーカイブディレクトリ | https://ftp.pdbj.org/pub/emdb/validation_reports/EMD-24060 ftp://ftp.pdbj.org/pub/emdb/validation_reports/EMD-24060 | HTTPS FTP |
-関連構造データ
-リンク
EMDBのページ | EMDB (EBI/PDBe) / EMDataResource |
---|---|
「今月の分子」の関連する項目 |
-マップ
ファイル | ダウンロード / ファイル: emd_24060.map.gz / 形式: CCP4 / 大きさ: 216 MB / タイプ: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
投影像・断面図 | 画像のコントロール
画像は Spider により作成 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
ボクセルのサイズ | X=Y=Z: 1.068 Å | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
密度 |
| ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
対称性 | 空間群: 1 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
詳細 | EMDB XML:
CCP4マップ ヘッダ情報:
|
-添付データ
-試料の構成要素
-全体 : the SARS-CoV-2 Spike trimer in complex with the Fab fragment of h...
全体 | 名称: the SARS-CoV-2 Spike trimer in complex with the Fab fragment of human neutralizing antibody clone 6 |
---|---|
要素 |
|
-超分子 #1: the SARS-CoV-2 Spike trimer in complex with the Fab fragment of h...
超分子 | 名称: the SARS-CoV-2 Spike trimer in complex with the Fab fragment of human neutralizing antibody clone 6 タイプ: complex / ID: 1 / 親要素: 0 / 含まれる分子: #1-#3 |
---|---|
由来(天然) | 生物種: Severe acute respiratory syndrome coronavirus 2 (ウイルス) |
分子量 | 理論値: 190 KDa |
-分子 #1: Spike glycoprotein
分子 | 名称: Spike glycoprotein / タイプ: protein_or_peptide / ID: 1 / コピー数: 3 / 光学異性体: LEVO |
---|---|
由来(天然) | 生物種: Severe acute respiratory syndrome coronavirus 2 (ウイルス) |
分子量 | 理論値: 142.399375 KDa |
組換発現 | 生物種: Mammalian expression vector pcDNA3.1-Flag (その他) |
配列 | 文字列: MFVFLVLLPL VSSQCVNLTT RTQLPPAYTN SFTRGVYYPD KVFRSSVLHS TQDLFLPFFS NVTWFHAIHV SGTNGTKRFD NPVLPFNDG VYFASTEKSN IIRGWIFGTT LDSKTQSLLI VNNATNVVIK VCEFQFCNDP FLGVYYHKNN KSWMESEFRV Y SSANNCTF ...文字列: MFVFLVLLPL VSSQCVNLTT RTQLPPAYTN SFTRGVYYPD KVFRSSVLHS TQDLFLPFFS NVTWFHAIHV SGTNGTKRFD NPVLPFNDG VYFASTEKSN IIRGWIFGTT LDSKTQSLLI VNNATNVVIK VCEFQFCNDP FLGVYYHKNN KSWMESEFRV Y SSANNCTF EYVSQPFLMD LEGKQGNFKN LREFVFKNID GYFKIYSKHT PINLVRDLPQ GFSALEPLVD LPIGINITRF QT LLALHRS YLTPGDSSSG WTAGAAAYYV GYLQPRTFLL KYNENGTITD AVDCALDPLS ETKCTLKSFT VEKGIYQTSN FRV QPTESI VRFPNITNLC PFGEVFNATR FASVYAWNRK RISNCVADYS VLYNSASFST FKCYGVSPTK LNDLCFTNVY ADSF VIRGD EVRQIAPGQT GKIADYNYKL PDDFTGCVIA WNSNNLDSKV GGNYNYLYRL FRKSNLKPFE RDISTEIYQA GSTPC NGVE GFNCYFPLQS YGFQPTNGVG YQPYRVVVLS FELLHAPATV CGPKKSTNLV KNKCVNFNFN GLTGTGVLTE SNKKFL PFQ QFGRDIADTT DAVRDPQTLE ILDITPCSFG GVSVITPGTN TSNQVAVLYQ DVNCTEVPVA IHADQLTPTW RVYSTGS NV FQTRAGCLIG AEHVNNSYEC DIPIGAGICA SYQTQTNSPG SASSVASQSI IAYTMSLGAE NSVAYSNNSI AIPTNFTI S VTTEILPVSM TKTSVDCTMY ICGDSTECSN LLLQYGSFCT QLNRALTGIA VEQDKNTQEV FAQVKQIYKT PPIKDFGGF NFSQILPDPS KPSKRSFIED LLFNKVTLAD AGFIKQYGDC LGDIAARDLI CAQKFNGLTV LPPLLTDEMI AQYTSALLAG TITSGWTFG AGAALQIPFA MQMAYRFNGI GVTQNVLYEN QKLIANQFNS AIGKIQDSLS STASALGKLQ DVVNQNAQAL N TLVKQLSS NFGAISSVLN DILSRLDPPE AEVQIDRLIT GRLQSLQTYV TQQLIRAAEI RASANLAATK MSECVLGQSK RV DFCGKGY HLMSFPQSAP HGVVFLHVTY VPAQEKNFTT APAICHDGKA HFPREGVFVS NGTHWFVTQR NFYEPQIITT DNT FVSGNC DVVIGIVNNT VYDPLQPELD SFKEELDKYF KNHTSPDVDL GDISGINASV VNIQKEIDRL NEVAKNLNES LIDL QELGK YEQGSGYIPE APRDGQAYVR KDGEWVLLST FLGRSLEVLF QGPGHHHHHH HHSAWSHPQF EKGGGSGGGG SGGSA WSHP QFEK UniProtKB: Spike glycoprotein |
-分子 #2: Fab of antibody clone 6, light chain
分子 | 名称: Fab of antibody clone 6, light chain / タイプ: protein_or_peptide / ID: 2 / コピー数: 3 / 光学異性体: LEVO |
---|---|
由来(天然) | 生物種: Homo sapiens (ヒト) |
分子量 | 理論値: 25.922904 KDa |
組換発現 | 生物種: Homo sapiens (ヒト) |
配列 | 文字列: MEKDTLLLWV LLLWVPGSTG DIVLTQSPAS LAVSLGQRAT ISCRASESVD NYGISFMNWF QQTPGQPPKL LIYGSSNQGS GVPARFSGS GSGTDFSLNI HPMEEDDTAM YFCQQSKEVP YTFGGGTKLE IKRTVAAPSV FIFPPSDEQL KSGTASVVCL L NNFYPREA ...文字列: MEKDTLLLWV LLLWVPGSTG DIVLTQSPAS LAVSLGQRAT ISCRASESVD NYGISFMNWF QQTPGQPPKL LIYGSSNQGS GVPARFSGS GSGTDFSLNI HPMEEDDTAM YFCQQSKEVP YTFGGGTKLE IKRTVAAPSV FIFPPSDEQL KSGTASVVCL L NNFYPREA KVQWKVDNAL QSGNSQESVT EQDSKDSTYS LSSTLTLSKA DYEKHKVYAC EVTHQGLSSP VTKSFNRGEA |
-分子 #3: Fab of antibody clone 6, heavy chain
分子 | 名称: Fab of antibody clone 6, heavy chain / タイプ: protein_or_peptide / ID: 3 / コピー数: 3 / 光学異性体: LEVO |
---|---|
由来(天然) | 生物種: Homo sapiens (ヒト) |
分子量 | 理論値: 25.495588 KDa |
組換発現 | 生物種: Homo sapiens (ヒト) |
配列 | 文字列: MERHWIFLFL LSVTAGVHSQ VQLQQSAAEL ARPGASVKMS CKASGYTFTS YTMHWVKQRP GQGLEWIGYI NPTSGYTEYN QNFKDKTTL TADKSSSTAY MQLNSLTSED SAVYYCAREG HRVGPAYWGQ GTLVTVSAAS TKGPSVFPLA PSSKSTSGGT A ALGCLVKD ...文字列: MERHWIFLFL LSVTAGVHSQ VQLQQSAAEL ARPGASVKMS CKASGYTFTS YTMHWVKQRP GQGLEWIGYI NPTSGYTEYN QNFKDKTTL TADKSSSTAY MQLNSLTSED SAVYYCAREG HRVGPAYWGQ GTLVTVSAAS TKGPSVFPLA PSSKSTSGGT A ALGCLVKD YFPEPVTVSW NSGALTSGVH TFPAVLQSSG LYSLSSVVTV PSSSLGTQTY ICNVNHKPSN TKVDKKVEP |
-分子 #5: 2-acetamido-2-deoxy-beta-D-glucopyranose
分子 | 名称: 2-acetamido-2-deoxy-beta-D-glucopyranose / タイプ: ligand / ID: 5 / コピー数: 30 / 式: NAG |
---|---|
分子量 | 理論値: 221.208 Da |
Chemical component information | ChemComp-NAG: |
-実験情報
-構造解析
手法 | クライオ電子顕微鏡法 |
---|---|
解析 | 単粒子再構成法 |
試料の集合状態 | particle |
-試料調製
濃度 | 0.3 mg/mL |
---|---|
緩衝液 | pH: 8 |
凍結 | 凍結剤: ETHANE |
-電子顕微鏡法
顕微鏡 | FEI TITAN KRIOS |
---|---|
撮影 | フィルム・検出器のモデル: GATAN K3 (6k x 4k) / 平均電子線量: 66.5 e/Å2 |
電子線 | 加速電圧: 300 kV / 電子線源: FIELD EMISSION GUN |
電子光学系 | 照射モード: FLOOD BEAM / 撮影モード: BRIGHT FIELD / 最大 デフォーカス(公称値): 2.5 µm 最小 デフォーカス(公称値): 0.7000000000000001 µm |
実験機器 | モデル: Titan Krios / 画像提供: FEI Company |
-画像解析
初期モデル | モデルのタイプ: NONE |
---|---|
最終 再構成 | 解像度のタイプ: BY AUTHOR / 解像度: 2.97 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 使用した粒子像数: 68416 |
初期 角度割当 | タイプ: PROJECTION MATCHING |
最終 角度割当 | タイプ: MAXIMUM LIKELIHOOD |