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Yorodumi- PDB-7kzb: Potent SARS-CoV-2 binding and neutralization through maturation o... -
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-Basic information
Entry | Database: PDB / ID: 7kzb | |||||||||
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Title | Potent SARS-CoV-2 binding and neutralization through maturation of iconic SARS-CoV-1antibodies | |||||||||
Components |
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Keywords | VIRAL PROTEIN/Immune System / COVID19 / SARS-CoV2 / antibody / ANTIVIRAL PROTEIN / VIRAL PROTEIN-Immune System complex | |||||||||
Function / homology | Function and homology information 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 / host cell endoplasmic reticulum-Golgi intermediate compartment membrane ...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 / host cell endoplasmic reticulum-Golgi intermediate compartment membrane / entry receptor-mediated virion attachment to host cell / 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 / host cell surface receptor binding / fusion of virus membrane with host plasma membrane / fusion of virus membrane with host endosome membrane / viral envelope / symbiont-mediated suppression of host type I interferon-mediated signaling pathway / virion attachment to host cell / SARS-CoV-2 activates/modulates innate and adaptive immune responses / host cell plasma membrane / virion membrane / membrane / identical protein binding / plasma membrane Similarity search - Function | |||||||||
Biological species | Homo sapiens (human) Severe acute respiratory syndrome coronavirus 2 | |||||||||
Method | X-RAY DIFFRACTION / SYNCHROTRON / MOLECULAR REPLACEMENT / molecular replacement / Resolution: 2.83 Å | |||||||||
Authors | Langley, D.B. / Christ, D. | |||||||||
Citation | Journal: MAbs / Year: 2021 Title: Potent SARS-CoV-2 binding and neutralization through maturation of iconic SARS-CoV-1 antibodies. Authors: Romain Rouet / Ohan Mazigi / Gregory J Walker / David B Langley / Meghna Sobti / Peter Schofield / Helen Lenthall / Jennifer Jackson / Stephanie Ubiparipovic / Jake Y Henry / Arunasingam ...Authors: Romain Rouet / Ohan Mazigi / Gregory J Walker / David B Langley / Meghna Sobti / Peter Schofield / Helen Lenthall / Jennifer Jackson / Stephanie Ubiparipovic / Jake Y Henry / Arunasingam Abayasingam / Deborah Burnett / Anthony Kelleher / Robert Brink / Rowena A Bull / Stuart Turville / Alastair G Stewart / Christopher C Goodnow / William D Rawlinson / Daniel Christ / Abstract: Antibodies against coronavirus spike protein potently protect against infection and disease, but whether such protection can be extended to variant coronaviruses is unclear. This is exemplified by a ...Antibodies against coronavirus spike protein potently protect against infection and disease, but whether such protection can be extended to variant coronaviruses is unclear. This is exemplified by a set of iconic and well-characterized monoclonal antibodies developed after the 2003 SARS outbreak, including mAbs m396, CR3022, CR3014 and 80R, which potently neutralize SARS-CoV-1, but not SARS-CoV-2. Here, we explore antibody engineering strategies to change and broaden their specificity, enabling nanomolar binding and potent neutralization of SARS-CoV-2. Intriguingly, while many of the matured clones maintained specificity of the parental antibody, new specificities were also observed, which was further confirmed by X-ray crystallography and cryo-electron microscopy, indicating that a limited set of VH antibody domains can give rise to variants targeting diverse epitopes, when paired with a diverse VL repertoire. Our findings open up over 15 years of antibody development efforts against SARS-CoV-1 to the SARS-CoV-2 field and outline general principles for the maturation of antibody specificity against emerging viruses. | |||||||||
History |
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-Structure visualization
Structure viewer | Molecule: MolmilJmol/JSmol |
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-Downloads & links
-Download
PDBx/mmCIF format | 7kzb.cif.gz | 384.2 KB | Display | PDBx/mmCIF format |
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PDB format | pdb7kzb.ent.gz | 308.2 KB | Display | PDB format |
PDBx/mmJSON format | 7kzb.json.gz | Tree view | PDBx/mmJSON format | |
Others | Other downloads |
-Validation report
Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/kz/7kzb ftp://data.pdbj.org/pub/pdb/validation_reports/kz/7kzb | HTTPS FTP |
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-Related structure data
Related structure data | 7kzaC 7kzcC 6w41S S: Starting model for refinement C: citing same article (ref.) |
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Similar structure data |
-Links
-Assembly
Deposited unit |
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1 |
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Unit cell |
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-Components
-Antibody , 4 types, 4 molecules HLAB
#1: Antibody | Mass: 24812.666 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Cell line (production host): ExpiCHO / Production host: Cricetulus griseus (Chinese hamster) |
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#2: Antibody | Mass: 23577.041 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Cell line (production host): ExpiCHO / Production host: Cricetulus griseus (Chinese hamster) |
#4: Antibody | Mass: 24428.432 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Cell line (production host): ExpiCHO / Production host: Cricetulus griseus (Chinese hamster) |
#5: Antibody | Mass: 23346.889 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Cell line (production host): ExpiCHO / Production host: Cricetulus griseus (Chinese hamster) |
-Protein / Sugars , 2 types, 2 molecules C
#3: Protein | Mass: 22975.688 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Severe acute respiratory syndrome coronavirus 2 Gene: S, 2 / Cell line (production host): HEK Expi 293 / Production host: Homo sapiens (human) / References: UniProt: P0DTC2 |
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#6: Polysaccharide | 2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-[alpha-L-fucopyranose-(1-6)]2-acetamido-2-deoxy-beta- ...2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-[alpha-L-fucopyranose-(1-6)]2-acetamido-2-deoxy-beta-D-glucopyranose Source method: isolated from a genetically manipulated source |
-Non-polymers , 2 types, 6 molecules
#7: Chemical | ChemComp-CL / |
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#8: Water | ChemComp-HOH / |
-Details
Has ligand of interest | N |
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-Experimental details
-Experiment
Experiment | Method: X-RAY DIFFRACTION / Number of used crystals: 1 |
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-Sample preparation
Crystal | Density Matthews: 2.44 Å3/Da / Density % sol: 50 % / Description: Sword-like rods |
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Crystal grow | Temperature: 293 K / Method: vapor diffusion, hanging drop Details: 200 mM NaCl, 100 mM Tris (pH 8.0), 20% (w/v) PEG3350 |
-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: 0.9537 Å | ||||||||||||||||||||||||||||||
Detector | Type: DECTRIS EIGER X 16M / Detector: PIXEL / Date: Sep 20, 2020 | ||||||||||||||||||||||||||||||
Radiation | Protocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray | ||||||||||||||||||||||||||||||
Radiation wavelength | Wavelength: 0.9537 Å / Relative weight: 1 | ||||||||||||||||||||||||||||||
Reflection | Resolution: 2.83→49.38 Å / Num. obs: 28690 / % possible obs: 99.7 % / Redundancy: 13.5 % / CC1/2: 0.998 / Rmerge(I) obs: 0.144 / Rpim(I) all: 0.041 / Rrim(I) all: 0.15 / Net I/σ(I): 12.4 / Num. measured all: 387606 / Scaling rejects: 6 | ||||||||||||||||||||||||||||||
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
Software |
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Refinement | Method to determine structure: MOLECULAR REPLACEMENT Starting model: 6w41 Resolution: 2.83→49.38 Å / Cor.coef. Fo:Fc: 0.909 / Cor.coef. Fo:Fc free: 0.745 / WRfactor Rfree: 0.3135 / WRfactor Rwork: 0.2378 / FOM work R set: 0.709 / SU B: 47.881 / SU ML: 0.421 / SU R Cruickshank DPI: 0.383 / SU Rfree: 0.4965 / Cross valid method: THROUGHOUT / σ(F): 0 / ESU R Free: 0.497 / Stereochemistry target values: MAXIMUM LIKELIHOOD Details: HYDROGENS HAVE BEEN ADDED IN THE RIDING POSITIONS U VALUES : WITH TLS ADDED
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Solvent computation | Ion probe radii: 0.8 Å / Shrinkage radii: 0.8 Å / VDW probe radii: 1.2 Å / Solvent model: MASK | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Displacement parameters | Biso max: 216.93 Å2 / Biso mean: 80.735 Å2 / Biso min: 36.21 Å2
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Refinement step | Cycle: final / Resolution: 2.83→49.38 Å
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Refine LS restraints |
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LS refinement shell | Resolution: 2.831→2.905 Å / Rfactor Rfree error: 0 / Total num. of bins used: 20
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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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