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- EMDB-33434: Cryo-EM structure of SARS-CoV-2 Omicron spike glycoprotein in com... -
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Open data
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Basic information
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Title | Cryo-EM structure of SARS-CoV-2 Omicron spike glycoprotein in complex with three F61 Fab and three D2 Fab | |||||||||
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Function / homology | ![]() 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 Similarity search - Function | |||||||||
Biological species | ![]() ![]() ![]() | |||||||||
Method | single particle reconstruction / cryo EM / Resolution: 3.04 Å | |||||||||
![]() | Wang X / Li X | |||||||||
Funding support | 1 items
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![]() | ![]() Title: Structural basis of a two-antibody cocktail exhibiting highly potent and broadly neutralizing activities against SARS-CoV-2 variants including diverse Omicron sublineages. Authors: Xiaoman Li / Yongbing Pan / Qiangling Yin / Zejun Wang / Sisi Shan / Laixing Zhang / Jinfang Yu / Yuanyuan Qu / Lina Sun / Fang Gui / Jia Lu / Zhaofei Jing / Wei Wu / Tao Huang / Xuanling ...Authors: Xiaoman Li / Yongbing Pan / Qiangling Yin / Zejun Wang / Sisi Shan / Laixing Zhang / Jinfang Yu / Yuanyuan Qu / Lina Sun / Fang Gui / Jia Lu / Zhaofei Jing / Wei Wu / Tao Huang / Xuanling Shi / Jiandong Li / Xinguo Li / Dexin Li / Shiwen Wang / Maojun Yang / Linqi Zhang / Kai Duan / Mifang Liang / Xiaoming Yang / Xinquan Wang / ![]() Abstract: The severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) variants of concern (VOCs), especially the latest Omicron, have exhibited severe antibody evasion. Broadly neutralizing antibodies ...The severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) variants of concern (VOCs), especially the latest Omicron, have exhibited severe antibody evasion. Broadly neutralizing antibodies with high potency against Omicron are urgently needed for understanding the working mechanisms and developing therapeutic agents. In this study, we characterized the previously reported F61, which was isolated from convalescent patients infected with prototype SARS-CoV-2, as a broadly neutralizing antibody against all VOCs including Omicron BA.1, BA.1.1, BA.2, BA.3 and BA.4 sublineages by utilizing antigen binding and cell infection assays. We also identified and characterized another broadly neutralizing antibody D2 with epitope distinct from that of F61. More importantly, we showed that a combination of F61 with D2 exhibited synergy in neutralization and protecting mice from SARS-CoV-2 Delta and Omicron BA.1 variants. Cryo-Electron Microscopy (Cryo-EM) structures of the spike-F61 and spike-D2 binary complexes revealed the distinct epitopes of F61 and D2 at atomic level and the structural basis for neutralization. Cryo-EM structure of the Omicron-spike-F61-D2 ternary complex provides further structural insights into the synergy between F61 and D2. These results collectively indicated F61 and F61-D2 cocktail as promising therapeutic antibodies for combating SARS-CoV-2 variants including diverse Omicron sublineages. | |||||||||
History |
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Structure visualization
Supplemental images |
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Downloads & links
-EMDB archive
Map data | ![]() | 141.5 MB | ![]() | |
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Header (meta data) | ![]() ![]() | 22.2 KB 22.2 KB | Display Display | ![]() |
FSC (resolution estimation) | ![]() | 11.2 KB | Display | ![]() |
Images | ![]() | 49.4 KB | ||
Others | ![]() ![]() ![]() | 141.5 MB 139.2 MB 139.2 MB | ||
Archive directory | ![]() ![]() | HTTPS FTP |
-Validation report
Summary document | ![]() | 700.2 KB | Display | ![]() |
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Full document | ![]() | 699.7 KB | Display | |
Data in XML | ![]() | 19.7 KB | Display | |
Data in CIF | ![]() | 25.2 KB | Display | |
Arichive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Related structure data | ![]() 7xstMC ![]() 7xmxC ![]() 7xmzC M: atomic model generated by this map C: citing same article ( |
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Similar structure data | Similarity search - Function & homology ![]() |
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Links
EMDB pages | ![]() ![]() |
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Related items in Molecule of the Month |
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Map
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Voxel size | X=Y=Z: 0.97 Å | ||||||||||||||||||||
Density |
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Symmetry | Space group: 1 | ||||||||||||||||||||
Details | EMDB XML:
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-Supplemental data
-Additional map: local map
File | emd_33434_additional_1.map | ||||||||||||
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Annotation | local map | ||||||||||||
Projections & Slices |
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Density Histograms |
-Half map: #2
File | emd_33434_half_map_1.map | ||||||||||||
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Projections & Slices |
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Density Histograms |
-Half map: #1
File | emd_33434_half_map_2.map | ||||||||||||
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Projections & Slices |
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Density Histograms |
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Sample components
-Entire : SARS-CoV-2 Omicron spike in complex with F61 and D2 Fab
Entire | Name: SARS-CoV-2 Omicron spike in complex with F61 and D2 Fab |
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Components |
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-Supramolecule #1: SARS-CoV-2 Omicron spike in complex with F61 and D2 Fab
Supramolecule | Name: SARS-CoV-2 Omicron spike in complex with F61 and D2 Fab type: complex / Chimera: Yes / ID: 1 / Parent: 0 / Macromolecule list: #1-#5 |
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Source (natural) | Organism: ![]() ![]() |
Recombinant expression | Organism: ![]() |
-Macromolecule #1: Spike glycoprotein
Macromolecule | Name: Spike glycoprotein / type: protein_or_peptide / ID: 1 / Number of copies: 3 / Enantiomer: LEVO |
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Source (natural) | Organism: ![]() ![]() |
Molecular weight | Theoretical: 134.628844 KDa |
Recombinant expression | Organism: ![]() |
Sequence | String: MFVFLVLLPL VSSQCVNLTT RTQLPPAYTN SFTRGVYYPD KVFRSSVLHS TQDLFLPFFS NVTWFHVISG TNGTKRFDNP VLPFNDGVY FASIEKSNII RGWIFGTTLD SKTQSLLIVN NATNVVIKVC EFQFCNDPFL DHKNNKSWME SEFRVYSSAN N CTFEYVSQ ...String: MFVFLVLLPL VSSQCVNLTT RTQLPPAYTN SFTRGVYYPD KVFRSSVLHS TQDLFLPFFS NVTWFHVISG TNGTKRFDNP VLPFNDGVY FASIEKSNII RGWIFGTTLD SKTQSLLIVN NATNVVIKVC EFQFCNDPFL DHKNNKSWME SEFRVYSSAN N CTFEYVSQ PFLMDLEGKQ GNFKNLREFV FKNIDGYFKI YSKHTPIIVR EPEDLPQGFS ALEPLVDLPI GINITRFQTL LA LHRSYLT PGDSSSGWTA GAAAYYVGYL QPRTFLLKYN ENGTITDAVD CALDPLSETK CTLKSFTVEK GIYQTSNFRV QPT ESIVRF PNITNLCPFD EVFNATRFAS VYAWNRKRIS NCVADYSVLY NLAPFFTFKC YGVSPTKLND LCFTNVYADS FVIR GDEVR QIAPGQTGNI ADYNYKLPDD FTGCVIAWNS NKLDSKVSGN YNYLYRLFRK SNLKPFERDI STEIYQAGNK PCNGV AGFN CYFPLRSYSF RPTYGVGHQP YRVVVLSFEL LHAPATVCGP KKSTNLVKNK CVNFNFNGLK GTGVLTESNK KFLPFQ QFG RDIADTTDAV RDPQTLEILD ITPCSFGGVS VITPGTNTSN QVAVLYQGVN CTEVPVAIHA DQLTPTWRVY STGSNVF QT RAGCLIGAEY VNNSYECDIP IGAGICASYQ TQTKSHGSAS SVASQSIIAY TMSLGAENSV AYSNNSIAIP TNFTISVT T EILPVSMTKT SVDCTMYICG DSTECSNLLL QYGSFCTQLK RALTGIAVEQ DKNTQEVFAQ VKQIYKTPPI KYFGGFNFS QILPDPSKPS KRSPIEDLLF NKVTLADAGF IKQYGDCLGD IAARDLICAQ KFKGLTVLPP LLTDEMIAQY TSALLAGTIT SGWTFGAGP ALQIPFPMQM AYRFNGIGVT QNVLYENQKL IANQFNSAIG KIQDSLSSTP SALGKLQDVV NHNAQALNTL V KQLSSKFG AISSVLNDIF SRLDPPEAEV QIDRLITGRL QSLQTYVTQQ LIRAAEIRAS ANLAATKMSE CVLGQSKRVD FC GKGYHLM SFPQSAPHGV VFLHVTYVPA QEKNFTTAPA ICHDGKAHFP REGVFVSNGT HWFVTQRNFY EPQIITTDNT FVS GNCDVV IGIVNNTVYD PLQPELDSFK EELDKYFKNH TSPDVDLGDI SGINASVVNI QKEIDRLNEV AKNLNESLID LQEL GKYEQ YIKWP |
-Macromolecule #2: F61 heavy chain
Macromolecule | Name: F61 heavy chain / type: protein_or_peptide / ID: 2 / Number of copies: 3 / Enantiomer: LEVO |
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Source (natural) | Organism: ![]() |
Molecular weight | Theoretical: 12.993491 KDa |
Recombinant expression | Organism: ![]() |
Sequence | String: EVQLVESGGG LVQPGGSLRL SCEASEIIVN RNYMNWVRQA PGKGLEWVSI IYPGGSTFYA DSVKGRFTIS RDNSKNTMYL QMNSLRAED TAVYYCARSY GDFYVDFWGQ GTLVTVSS |
-Macromolecule #3: F61 light chain
Macromolecule | Name: F61 light chain / type: protein_or_peptide / ID: 3 / Number of copies: 3 / Enantiomer: LEVO |
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Source (natural) | Organism: ![]() |
Molecular weight | Theoretical: 11.472622 KDa |
Recombinant expression | Organism: ![]() |
Sequence | String: QSVLTQPPSV SAAPGQKVTI SCSGSSSNIG NNYVSWYQQL PGTAPKLLIY DNNKRPSGIP DRFSGSKSGT SATLGITGLQ TGDEADYYC GTWDSSLSAW VFGGGTKLTV L |
-Macromolecule #4: D2 heavy chain
Macromolecule | Name: D2 heavy chain / type: protein_or_peptide / ID: 4 / Number of copies: 3 / Enantiomer: LEVO |
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Source (natural) | Organism: ![]() |
Molecular weight | Theoretical: 13.406785 KDa |
Recombinant expression | Organism: ![]() |
Sequence | String: EVQLVESGGG LVQPGRSLTL SCGASGFTFE DYAMHWVRQA PGKGLEWVSG IDWNSGVIGY ADSVKGRFII SRDNAKNSLY LHMRSLTAE DTALYYCAKD VYSESGSGSY YDYWGQGTLV TVSS |
-Macromolecule #5: D2 light chain
Macromolecule | Name: D2 light chain / type: protein_or_peptide / ID: 5 / Number of copies: 3 / Enantiomer: LEVO |
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Source (natural) | Organism: ![]() |
Molecular weight | Theoretical: 11.468719 KDa |
Recombinant expression | Organism: ![]() |
Sequence | String: QSVLTQPPSV SAAPGQKVAI SCSGSTSNIG DNFVSWYQQF PGTAPKLLLY DDARRPSGIP DRFSGSKSGT SATLGITGLQ TGDEAVYFC STWDNSLNVV LFGGGTKLTV L |
-Macromolecule #6: 2-acetamido-2-deoxy-beta-D-glucopyranose
Macromolecule | Name: 2-acetamido-2-deoxy-beta-D-glucopyranose / type: ligand / ID: 6 / Number of copies: 31 / Formula: NAG |
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Molecular weight | Theoretical: 221.208 Da |
Chemical component information | ![]() ChemComp-NAG: |
-Experimental details
-Structure determination
Method | cryo EM |
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![]() | single particle reconstruction |
Aggregation state | particle |
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Sample preparation
Concentration | 0.91 mg/mL |
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Buffer | pH: 7.2 |
Vitrification | Cryogen name: ETHANE |
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Electron microscopy
Microscope | FEI TITAN KRIOS |
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Image recording | Film or detector model: GATAN K3 (6k x 4k) / Average electron dose: 50.0 e/Å2 |
Electron beam | Acceleration voltage: 300 kV / Electron source: ![]() |
Electron optics | Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Nominal defocus max: 1.5 µm / Nominal defocus min: 1.2 µm |
Experimental equipment | ![]() Model: Titan Krios / Image courtesy: FEI Company |