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Open data
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Basic information
| Entry | Database: PDB / ID: 7t67 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| Title | SARS-CoV-2 S (Spike Glycoprotein) D614G with One(1) RBD Up | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Components | Spike glycoprotein | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Keywords | VIRAL PROTEIN/IMMUNE SYSTEM / virus / coronavirus / SARS CoV-2 / SARS-CoV-2 / spike / D614G / RBD / 1 RBD up / one RBD up / VIRAL PROTEIN / VIRAL PROTEIN-IMMUNE SYSTEM complex | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Function / homology | Function and homology informationsymbiont-mediated disruption of host tissue / Maturation of spike protein / Translation of Structural Proteins / Virion Assembly and Release / host cell surface / host extracellular space / viral translation / symbiont-mediated-mediated suppression of host tetherin activity / Induction of Cell-Cell Fusion / structural constituent of virion ...symbiont-mediated disruption of host tissue / Maturation of spike protein / Translation of Structural Proteins / Virion Assembly and Release / host cell surface / host extracellular space / viral translation / symbiont-mediated-mediated suppression of host tetherin activity / Induction of Cell-Cell Fusion / structural constituent of virion / membrane fusion / entry receptor-mediated virion attachment to host cell / Attachment and Entry / host cell endoplasmic reticulum-Golgi intermediate compartment membrane / positive regulation of viral entry into host cell / receptor-mediated virion attachment to host cell / host cell surface receptor binding / symbiont-mediated suppression of host innate immune response / receptor ligand activity / endocytosis involved in viral entry into host cell / fusion of virus membrane with host plasma membrane / fusion of virus membrane with host endosome membrane / viral envelope / symbiont entry into host cell / 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 | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3 Å | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Authors | Byrne, P.O. / McLellan, J.S. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Funding support | United States, 1items
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Citation | Journal: Nat Commun / Year: 2022Title: IgG-like bispecific antibodies with potent and synergistic neutralization against circulating SARS-CoV-2 variants of concern. Authors: Matthew R Chang / Luke Tomasovic / Natalia A Kuzmina / Adam J Ronk / Patrick O Byrne / Rebecca Johnson / Nadia Storm / Eduardo Olmedillas / Yixuan J Hou / Alexandra Schäfer / Sarah R Leist ...Authors: Matthew R Chang / Luke Tomasovic / Natalia A Kuzmina / Adam J Ronk / Patrick O Byrne / Rebecca Johnson / Nadia Storm / Eduardo Olmedillas / Yixuan J Hou / Alexandra Schäfer / Sarah R Leist / Longping V Tse / Hanzhong Ke / Christian Coherd / Katrina Nguyen / Maliwan Kamkaew / Anna Honko / Quan Zhu / Galit Alter / Erica Ollmann Saphire / Jason S McLellan / Anthony Griffiths / Ralph S Baric / Alexander Bukreyev / Wayne A Marasco / ![]() Abstract: Monoclonal antibodies are a promising approach to treat COVID-19, however the emergence of SARS-CoV-2 variants has challenged the efficacy and future of these therapies. Antibody cocktails are being ...Monoclonal antibodies are a promising approach to treat COVID-19, however the emergence of SARS-CoV-2 variants has challenged the efficacy and future of these therapies. Antibody cocktails are being employed to mitigate these challenges, but neutralization escape remains a major challenge and alternative strategies are needed. Here we present two anti-SARS-CoV-2 spike binding antibodies, one Class 1 and one Class 4, selected from our non-immune human single-chain variable fragment (scFv) phage library, that are engineered into four, fully-human IgG-like bispecific antibodies (BsAb). Prophylaxis of hACE2 mice and post-infection treatment of golden hamsters demonstrates the efficacy of the monospecific antibodies against the original Wuhan strain, while promising in vitro results with the BsAbs demonstrate enhanced binding and distinct synergistic effects on neutralizing activity against circulating variants of concern. In particular, one BsAb engineered in a tandem scFv-Fc configuration shows synergistic neutralization activity against several variants of concern including B.1.617.2. This work provides evidence that synergistic neutralization can be achieved using a BsAb scaffold, and serves as a foundation for the future development of broadly reactive BsAbs against emerging variants of concern. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Structure visualization
| Structure viewer | Molecule: Molmil Jmol/JSmol |
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Downloads & links
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Download
| PDBx/mmCIF format | 7t67.cif.gz | 553.2 KB | Display | PDBx/mmCIF format |
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| PDB format | pdb7t67.ent.gz | 451.6 KB | Display | PDB format |
| PDBx/mmJSON format | 7t67.json.gz | Tree view | PDBx/mmJSON format | |
| Others | Other downloads |
-Validation report
| Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/t6/7t67 ftp://data.pdbj.org/pub/pdb/validation_reports/t6/7t67 | HTTPS FTP |
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-Related structure data
| Related structure data | ![]() 25711MC ![]() 7t3mC C: citing same article ( M: map data used to model this data |
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| Similar structure data | Similarity search - Function & homology F&H Search |
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Links
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Assembly
| Deposited unit | ![]()
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Components
| #1: Protein | Mass: 127002.930 Da / Num. of mol.: 3 / Mutation: D614G, R682G, R683S, R685S, K986P, V986P Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() Gene: S, 2 / Production host: ![]() #2: Polysaccharide | Source method: isolated from a genetically manipulated source #3: Sugar | ChemComp-NAG / Has ligand of interest | N | Has protein modification | Y | |
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-Experimental details
-Experiment
| Experiment | Method: ELECTRON MICROSCOPY |
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| EM experiment | Aggregation state: PARTICLE / 3D reconstruction method: single particle reconstruction |
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Sample preparation
| Component | Name: Complex of SARS CoV-2 S, Spike Glycoprotein, variant D614G with Antibody 2-7 scFv Type: COMPLEX / Entity ID: #1 / Source: RECOMBINANT | ||||||||||||
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| Molecular weight | Experimental value: NO | ||||||||||||
| Source (natural) | Organism: ![]() | ||||||||||||
| Source (recombinant) | Organism: ![]() | ||||||||||||
| Buffer solution | pH: 8 | ||||||||||||
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| Specimen | Conc.: 0.5 mg/ml / Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES | ||||||||||||
| Specimen support | Grid material: GOLD / Grid mesh size: 300 divisions/in. / Grid type: UltrAuFoil R1.2/1.3 | ||||||||||||
| Vitrification | Cryogen name: ETHANE |
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Electron microscopy imaging
| Experimental equipment | ![]() Model: Titan Krios / Image courtesy: FEI Company |
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| Microscopy | Model: FEI TITAN KRIOS |
| Electron gun | Electron source: FIELD EMISSION GUN / Accelerating voltage: 300 kV / Illumination mode: FLOOD BEAM |
| Electron lens | Mode: BRIGHT FIELD / Nominal defocus max: 2500 nm / Nominal defocus min: 1500 nm |
| Image recording | Electron dose: 70 e/Å2 / Film or detector model: GATAN K3 (6k x 4k) |
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Processing
| Software | Name: PHENIX / Version: 1.19.2_4158: / Classification: refinement | ||||||||||||||||||||||||
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| EM software | Name: PHENIX / Category: model refinement | ||||||||||||||||||||||||
| CTF correction | Type: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||
| Symmetry | Point symmetry: C1 (asymmetric) | ||||||||||||||||||||||||
| 3D reconstruction | Resolution: 3 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 41384 / Symmetry type: POINT | ||||||||||||||||||||||||
| Refine LS restraints |
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Movie
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About Yorodumi






United States, 1items
Citation





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FIELD EMISSION GUN