+Open data
-Basic information
Entry | Database: PDB / ID: 7oaq | |||||||||
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Title | Nanobody H3 AND C1 bound to RBD with Kent mutation | |||||||||
Components |
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Keywords | ANTIVIRAL PROTEIN / RBD / nanobody / high affinity | |||||||||
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 / 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 / membrane fusion / receptor-mediated endocytosis of virus by host cell / 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 Similarity search - Function | |||||||||
Biological species | Lama glama (llama) Severe acute respiratory syndrome coronavirus 2 | |||||||||
Method | X-RAY DIFFRACTION / SYNCHROTRON / MOLECULAR REPLACEMENT / Resolution: 1.55 Å | |||||||||
Authors | Naismith, J.H. / Mikolajek, H. | |||||||||
Funding support | United Kingdom, 2items
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Citation | Journal: Nat Commun / Year: 2021 Title: A potent SARS-CoV-2 neutralising nanobody shows therapeutic efficacy in the Syrian golden hamster model of COVID-19. Authors: Jiandong Huo / Halina Mikolajek / Audrey Le Bas / Jordan J Clark / Parul Sharma / Anja Kipar / Joshua Dormon / Chelsea Norman / Miriam Weckener / Daniel K Clare / Peter J Harrison / Julia A ...Authors: Jiandong Huo / Halina Mikolajek / Audrey Le Bas / Jordan J Clark / Parul Sharma / Anja Kipar / Joshua Dormon / Chelsea Norman / Miriam Weckener / Daniel K Clare / Peter J Harrison / Julia A Tree / Karen R Buttigieg / Francisco J Salguero / Robert Watson / Daniel Knott / Oliver Carnell / Didier Ngabo / Michael J Elmore / Susan Fotheringham / Adam Harding / Lucile Moynié / Philip N Ward / Maud Dumoux / Tessa Prince / Yper Hall / Julian A Hiscox / Andrew Owen / William James / Miles W Carroll / James P Stewart / James H Naismith / Raymond J Owens / Abstract: SARS-CoV-2 remains a global threat to human health particularly as escape mutants emerge. There is an unmet need for effective treatments against COVID-19 for which neutralizing single domain ...SARS-CoV-2 remains a global threat to human health particularly as escape mutants emerge. There is an unmet need for effective treatments against COVID-19 for which neutralizing single domain antibodies (nanobodies) have significant potential. Their small size and stability mean that nanobodies are compatible with respiratory administration. We report four nanobodies (C5, H3, C1, F2) engineered as homotrimers with pmolar affinity for the receptor binding domain (RBD) of the SARS-CoV-2 spike protein. Crystal structures show C5 and H3 overlap the ACE2 epitope, whilst C1 and F2 bind to a different epitope. Cryo Electron Microscopy shows C5 binding results in an all down arrangement of the Spike protein. C1, H3 and C5 all neutralize the Victoria strain, and the highly transmissible Alpha (B.1.1.7 first identified in Kent, UK) strain and C1 also neutralizes the Beta (B.1.35, first identified in South Africa). Administration of C5-trimer via the respiratory route showed potent therapeutic efficacy in the Syrian hamster model of COVID-19 and separately, effective prophylaxis. The molecule was similarly potent by intraperitoneal injection. #1: Journal: Res Sq / Year: 2021 Title: A potent SARS-CoV-2 neutralising nanobody shows therapeutic efficacy in the Syrian golden hamster model of COVID-19 Authors: Huo, J. / Mikolajek, H. / Le Bas, A. / Clark, J. / Sharma, P. / Kipar, A. / Dormon, J. / Norman, C. / Weckener, M. / Clare, D. / Harrison, P. / Tree, J. / Buttigieg, K. / Salguero, F. / ...Authors: Huo, J. / Mikolajek, H. / Le Bas, A. / Clark, J. / Sharma, P. / Kipar, A. / Dormon, J. / Norman, C. / Weckener, M. / Clare, D. / Harrison, P. / Tree, J. / Buttigieg, K. / Salguero, F. / Watson, R. / Knott, D. / Carnell, O. / Ngabo, D. / Elmore, M. / Fotheringham, S. / Harding, A. / Ward, P. / Moynie, L. / Dumoux, M. / Hall, Y. / Hiscox, J. / Owen, A. / James, W. / Carroll, M. / Stewart, J. / Naismith, J. / Owens, R. | |||||||||
History |
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-Structure visualization
Structure viewer | Molecule: MolmilJmol/JSmol |
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-Downloads & links
-Download
PDBx/mmCIF format | 7oaq.cif.gz | 205.5 KB | Display | PDBx/mmCIF format |
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PDB format | pdb7oaq.ent.gz | Display | PDB format | |
PDBx/mmJSON format | 7oaq.json.gz | Tree view | PDBx/mmJSON format | |
Others | Other downloads |
-Validation report
Summary document | 7oaq_validation.pdf.gz | 481.9 KB | Display | wwPDB validaton report |
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Full document | 7oaq_full_validation.pdf.gz | 490.1 KB | Display | |
Data in XML | 7oaq_validation.xml.gz | 22.5 KB | Display | |
Data in CIF | 7oaq_validation.cif.gz | 33.2 KB | Display | |
Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/oa/7oaq ftp://data.pdbj.org/pub/pdb/validation_reports/oa/7oaq | HTTPS FTP |
-Related structure data
Related structure data | 7oanC 7oaoC 7oapSC 7oauC 7oayC 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 on special symmetry positions |
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-Components
-Antibody , 2 types, 2 molecules AAAFFF
#1: Antibody | Mass: 14659.114 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Lama glama (llama) / Production host: Escherichia coli (E. coli) |
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#3: Antibody | Mass: 15134.849 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Lama glama (llama) / Production host: Escherichia coli (E. coli) |
-Protein / Sugars , 2 types, 2 molecules EEE
#2: Protein | Mass: 23765.652 Da / Num. of mol.: 1 / Mutation: N501Y Source method: isolated from a genetically manipulated source Source: (gene. exp.) Severe acute respiratory syndrome coronavirus 2 Gene: S, 2 / Production host: Homo sapiens (human) / References: UniProt: P0DTC2 |
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#4: Sugar | ChemComp-NAG / |
-Non-polymers , 3 types, 377 molecules
#5: Chemical | ChemComp-CIT / |
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#6: Chemical | ChemComp-CL / |
#7: 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: 2.95 Å3/Da / Density % sol: 58.27 % |
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Crystal grow | Temperature: 293 K / Method: vapor diffusion, sitting drop Details: 1.0 M Lithium chloride, 0.1 M Citrate pH 4, 20 % Peg 6000 |
-Data collection
Diffraction | Mean temperature: 100 K / Serial crystal experiment: N |
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Diffraction source | Source: SYNCHROTRON / Site: Diamond / Beamline: I04 / Wavelength: 0.9762 Å |
Detector | Type: DECTRIS PILATUS 6M / Detector: PIXEL / Date: Feb 24, 2021 |
Radiation | Protocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray |
Radiation wavelength | Wavelength: 0.9762 Å / Relative weight: 1 |
Reflection | Resolution: 1.55→53 Å / Num. obs: 93033 / % possible obs: 100 % / Redundancy: 26.8 % / CC1/2: 1 / Rpim(I) all: 0.02 / Net I/σ(I): 16.9 |
Reflection shell | Resolution: 1.55→1.59 Å / Redundancy: 27.6 % / Mean I/σ(I) obs: 0.6 / Num. unique obs: 6677 / CC1/2: 0.6 / Rpim(I) all: 0.59 / % possible all: 93 |
-Processing
Software |
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Refinement | Method to determine structure: MOLECULAR REPLACEMENT Starting model: 7oap Resolution: 1.55→52.984 Å / Cor.coef. Fo:Fc: 0.974 / Cor.coef. Fo:Fc free: 0.966 / SU B: 3.859 / SU ML: 0.056 / Cross valid method: FREE R-VALUE / ESU R: 0.068 / ESU R Free: 0.06 Details: Hydrogens have been added in their riding positions
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Solvent computation | Ion probe radii: 0.7 Å / Shrinkage radii: 0.7 Å / VDW probe radii: 1.1 Å / Solvent model: MASK BULK SOLVENT | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Displacement parameters | Biso mean: 36.162 Å2
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Refinement step | Cycle: LAST / Resolution: 1.55→52.984 Å
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Refine LS restraints |
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LS refinement shell |
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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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