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Yorodumi- PDB-7t72: Epitope-based selection of SARS-CoV-2 neutralizing antibodies fro... -
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Basic information
| Entry | Database: PDB / ID: 7t72 | ||||||
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| Title | Epitope-based selection of SARS-CoV-2 neutralizing antibodies from convalescent patients | ||||||
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Keywords | VIRAL PROTEIN / SARS-CoV2 / antibody / receptor binding domain / neutralizing | ||||||
| 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 / symbiont-mediated-mediated suppression of host tetherin activity / Induction of Cell-Cell Fusion / structural constituent of virion / membrane fusion ...symbiont-mediated disruption of host tissue / Maturation of spike protein / Translation of Structural Proteins / Virion Assembly and Release / host cell surface / host extracellular space / 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 / endocytosis involved in viral entry into host cell / receptor ligand activity / 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 / host cell plasma membrane / SARS-CoV-2 activates/modulates innate and adaptive immune responses / virion membrane / identical protein binding / membrane / plasma membrane Similarity search - Function | ||||||
| Biological species | Homo sapiens (human)![]() | ||||||
| Method | X-RAY DIFFRACTION / SYNCHROTRON / MOLECULAR REPLACEMENT / molecular replacement / Resolution: 3.177 Å | ||||||
Authors | Langley, D.B. / Christ, D. / Rouet, R. | ||||||
| Funding support | Australia, 1items
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Citation | Journal: Nat Commun / Year: 2023Title: Broadly neutralizing SARS-CoV-2 antibodies through epitope-based selection from convalescent patients. Authors: Romain Rouet / Jake Y Henry / Matt D Johansen / Meghna Sobti / Harikrishnan Balachandran / David B Langley / Gregory J Walker / Helen Lenthall / Jennifer Jackson / Stephanie Ubiparipovic / ...Authors: Romain Rouet / Jake Y Henry / Matt D Johansen / Meghna Sobti / Harikrishnan Balachandran / David B Langley / Gregory J Walker / Helen Lenthall / Jennifer Jackson / Stephanie Ubiparipovic / Ohan Mazigi / Peter Schofield / Deborah L Burnett / Simon H J Brown / Marianne Martinello / Bernard Hudson / Nicole Gilroy / Jeffrey J Post / Anthony Kelleher / Hans-Martin Jäck / Christopher C Goodnow / Stuart G Turville / William D Rawlinson / Rowena A Bull / Alastair G Stewart / Philip M Hansbro / Daniel Christ / ![]() Abstract: Emerging variants of concern (VOCs) are threatening to limit the effectiveness of SARS-CoV-2 monoclonal antibodies and vaccines currently used in clinical practice; broadly neutralizing antibodies ...Emerging variants of concern (VOCs) are threatening to limit the effectiveness of SARS-CoV-2 monoclonal antibodies and vaccines currently used in clinical practice; broadly neutralizing antibodies and strategies for their identification are therefore urgently required. Here we demonstrate that broadly neutralizing antibodies can be isolated from peripheral blood mononuclear cells of convalescent patients using SARS-CoV-2 receptor binding domains carrying epitope-specific mutations. This is exemplified by two human antibodies, GAR05, binding to epitope class 1, and GAR12, binding to a new epitope class 6 (located between class 3 and 5). Both antibodies broadly neutralize VOCs, exceeding the potency of the clinical monoclonal sotrovimab (S309) by orders of magnitude. They also provide prophylactic and therapeutic in vivo protection of female hACE2 mice against viral challenge. Our results indicate that exposure to SARS-CoV-2 induces antibodies that maintain broad neutralization against emerging VOCs using two unique strategies: either by targeting the divergent class 1 epitope in a manner resistant to VOCs (ACE2 mimicry, as illustrated by GAR05 and mAbs P2C-1F11/S2K14); or alternatively, by targeting rare and highly conserved epitopes, such as the new class 6 epitope identified here (as illustrated by GAR12). Our results provide guidance for next generation monoclonal antibody development and vaccine design. | ||||||
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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 | 7t72.cif.gz | 251.3 KB | Display | PDBx/mmCIF format |
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| PDB format | pdb7t72.ent.gz | 200.5 KB | Display | PDB format |
| PDBx/mmJSON format | 7t72.json.gz | Tree view | PDBx/mmJSON format | |
| Others | Other downloads |
-Validation report
| Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/t7/7t72 ftp://data.pdbj.org/pub/pdb/validation_reports/t7/7t72 | HTTPS FTP |
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-Related structure data
| Related structure data | ![]() 7t5oC ![]() 8dxtC ![]() 8dxuC C: citing same article ( |
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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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| Unit cell |
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Components
| #1: Antibody | Mass: 23513.047 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Production host: ![]() |
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| #2: Antibody | Mass: 24861.721 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Details: Fab format with C-terminal his tag / Source: (gene. exp.) Homo sapiens (human) / Production host: ![]() |
| #3: Protein | Mass: 22975.688 Da / Num. of mol.: 1 / Fragment: Receptor Binding Domain (RBD) Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() Gene: S, 2 / Production host: ![]() |
| #4: Sugar | ChemComp-NAG / |
| Has ligand of interest | N |
| Has protein modification | Y |
-Experimental details
-Experiment
| Experiment | Method: X-RAY DIFFRACTION / Number of used crystals: 1 |
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Sample preparation
| Crystal | Density Matthews: 2.83 Å3/Da / Density % sol: 57 % |
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| Crystal grow | Temperature: 293 K / Method: vapor diffusion, hanging drop Details: Equal volumes (2 uL) of protein solution (~5 mg/ml in 25 mM Tris (pH 8.0), 200 mM NaCl) and well solution (100 mM citrate (pH 4.25), 500 mM LiCl, 13% (w/v) PEG6000) were combined |
-Data collection
| Diffraction | Mean temperature: 100 K / Serial crystal experiment: N | ||||||||||||||||||||||||||||||
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| Diffraction source | Source: SYNCHROTRON / Site: Australian Synchrotron / Beamline: MX2 / Wavelength: 0.9536 Å | ||||||||||||||||||||||||||||||
| Detector | Type: DECTRIS EIGER X 16M / Detector: PIXEL / Date: Jul 21, 2021 | ||||||||||||||||||||||||||||||
| Radiation | Protocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray | ||||||||||||||||||||||||||||||
| Radiation wavelength | Wavelength: 0.9536 Å / Relative weight: 1 | ||||||||||||||||||||||||||||||
| Reflection | Resolution: 3.177→49.91 Å / Num. obs: 13965 / % possible obs: 99.3 % / Redundancy: 16.8 % / Biso Wilson estimate: 123.24 Å2 / CC1/2: 0.998 / Rmerge(I) obs: 0.079 / Rpim(I) all: 0.02 / Rrim(I) all: 0.081 / Net I/σ(I): 21.4 | ||||||||||||||||||||||||||||||
| Reflection shell | Diffraction-ID: 1
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-Phasing
| Phasing | Method: molecular replacement | |||||||||
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| Phasing MR | Model details: Phaser MODE: MR_AUTO
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Processing
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| Refinement | Method to determine structure: MOLECULAR REPLACEMENTStarting model: generic Fab and RBD Resolution: 3.177→48.698 Å / SU ML: 0.54 / Cross valid method: THROUGHOUT / σ(F): 1.35 / Phase error: 37.74 / Stereochemistry target values: ML
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| Solvent computation | Shrinkage radii: 0.9 Å / VDW probe radii: 1.11 Å / Solvent model: FLAT BULK SOLVENT MODEL | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Displacement parameters | Biso max: 243.02 Å2 / Biso mean: 134.1971 Å2 / Biso min: 68.4 Å2 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Refinement step | Cycle: final / Resolution: 3.177→48.698 Å
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| Refine LS restraints |
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| LS refinement shell | Refine-ID: X-RAY DIFFRACTION / Rfactor Rfree error: 0
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| Refinement TLS params. | Method: refined / Refine-ID: X-RAY DIFFRACTION
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| Refinement TLS group |
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About Yorodumi



Homo sapiens (human)
X-RAY DIFFRACTION
Australia, 1items
Citation





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