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Open data
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Basic information
Entry | Database: PDB / ID: 7sn2 | ||||||
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Title | Structure of human SARS-CoV-2 neutralizing antibody C1C-A3 Fab | ||||||
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![]() | IMMUNE SYSTEM / COVID-19 / SARS-CoV-2 / neutralizing antibody / neutralization escape | ||||||
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 / 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 / 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: 4.3 Å | ||||||
![]() | Pan, J. / Abraham, J. / Yang, P. / Shankar, S. | ||||||
Funding support | ![]()
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![]() | ![]() Title: Structural basis for continued antibody evasion by the SARS-CoV-2 receptor binding domain. Authors: Katherine G Nabel / Sarah A Clark / Sundaresh Shankar / Junhua Pan / Lars E Clark / Pan Yang / Adrian Coscia / Lindsay G A McKay / Haley H Varnum / Vesna Brusic / Nicole V Tolan / Guohai ...Authors: Katherine G Nabel / Sarah A Clark / Sundaresh Shankar / Junhua Pan / Lars E Clark / Pan Yang / Adrian Coscia / Lindsay G A McKay / Haley H Varnum / Vesna Brusic / Nicole V Tolan / Guohai Zhou / Michaël Desjardins / Sarah E Turbett / Sanjat Kanjilal / Amy C Sherman / Anand Dighe / Regina C LaRocque / Edward T Ryan / Casey Tylek / Joel F Cohen-Solal / Anhdao T Darcy / Davide Tavella / Anca Clabbers / Yao Fan / Anthony Griffiths / Ivan R Correia / Jane Seagal / Lindsey R Baden / Richelle C Charles / Jonathan Abraham / ![]() ![]() Abstract: Many studies have examined the impact of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) variants on neutralizing antibody activity after they have become dominant strains. Here, we ...Many studies have examined the impact of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) variants on neutralizing antibody activity after they have become dominant strains. Here, we evaluate the consequences of further viral evolution. We demonstrate mechanisms through which the SARS-CoV-2 receptor binding domain (RBD) can tolerate large numbers of simultaneous antibody escape mutations and show that pseudotypes containing up to seven mutations, as opposed to the one to three found in previously studied variants of concern, are more resistant to neutralization by therapeutic antibodies and serum from vaccine recipients. We identify an antibody that binds the RBD core to neutralize pseudotypes for all tested variants but show that the RBD can acquire an N-linked glycan to escape neutralization. Our findings portend continued emergence of escape variants as SARS-CoV-2 adapts to humans. | ||||||
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Structure visualization
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Structure viewer | Molecule: ![]() ![]() |
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Downloads & links
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Download
PDBx/mmCIF format | ![]() | 247.8 KB | Display | ![]() |
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PDB format | ![]() | 195.4 KB | Display | ![]() |
PDBx/mmJSON format | ![]() | Tree view | ![]() | |
Others | ![]() |
-Validation report
Summary document | ![]() | 995.4 KB | Display | ![]() |
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Full document | ![]() | 1003.5 KB | Display | |
Data in XML | ![]() | 25.6 KB | Display | |
Data in CIF | ![]() | 36.9 KB | Display | |
Arichive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Related structure data | ![]() 25209MC ![]() 7sn0C ![]() 7sn1C ![]() 7sn3C M: map data used to model this data C: citing same article ( |
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Similar structure data |
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Assembly
Deposited unit | ![]()
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Components
#1: Protein | Mass: 141192.203 Da / Num. of mol.: 1 Mutation: R682G, R683S, R685S, F817P, A892P, A899P, A942P, K986P, V987P Source method: isolated from a genetically manipulated source Details: isolation Wuhan-Hu-1 Source: (gene. exp.) ![]() ![]() Gene: S, 2 / Variant: Wuhan-Hu-1 / Plasmid: pHLSec Cell line (production host): HEK-293 (Thermo Fisher Expi293F) Production host: ![]() |
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#2: Antibody | Mass: 27022.607 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Details: mature antibody (after somatic hypermutation) from germline gene IGHV3-33 Source: (gene. exp.) ![]() Cell line (production host): HEK-293 (Thermo Fisher Expi293F) Production host: ![]() |
#3: Antibody | Mass: 25896.107 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Details: mature antibody (after somatic hypermutation) from germline gene IGKV3-11 Source: (gene. exp.) ![]() Cell line (production host): HEK-293T (Thermo Fisher Expi293F) Production host: ![]() |
#4: Polysaccharide | beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta- ...beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose Source method: isolated from a genetically manipulated source |
#5: Polysaccharide | 2-acetamido-2-deoxy-beta-D-glucopyranose-(1-2)-alpha-D-mannopyranose-(1-3)-[2-acetamido-2-deoxy- ...2-acetamido-2-deoxy-beta-D-glucopyranose-(1-2)-alpha-D-mannopyranose-(1-3)-[2-acetamido-2-deoxy-beta-D-glucopyranose-(1-2)-alpha-D-mannopyranose-(1-6)]beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose Source method: isolated from a genetically manipulated source |
Has ligand of interest | N |
-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
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Buffer solution | pH: 7.5 | ||||||||||||||||||||||||||||
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Specimen | Conc.: 0.9 mg/ml / Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES / Details: this sample was monodisperse. | ||||||||||||||||||||||||||||
Specimen support | Details: Quantifoil Cu 1.2/1.3 2nm carbon 300 mesh grids glowed discharge at 15 mA in Pelco EasiGlow Grid material: COPPER / Grid mesh size: 300 divisions/in. / Grid type: Quantifoil R1.2/1.3 | ||||||||||||||||||||||||||||
Vitrification | Instrument: FEI VITROBOT MARK IV / Cryogen name: ETHANE / Humidity: 100 % / Chamber temperature: 293 K / Details: blot for 4-6 seconds |
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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: ![]() |
Electron lens | Mode: BRIGHT FIELD / Nominal magnification: 105000 X / Calibrated magnification: 60606 X / Nominal defocus max: 2500 nm / Nominal defocus min: 1000 nm / Cs: 2.7 mm / C2 aperture diameter: 50 µm / Alignment procedure: COMA FREE |
Specimen holder | Cryogen: NITROGEN / Specimen holder model: FEI TITAN KRIOS AUTOGRID HOLDER / Temperature (max): 77 K / Temperature (min): 77 K |
Image recording | Average exposure time: 1.9 sec. / Electron dose: 56.5 e/Å2 / Film or detector model: GATAN K3 BIOQUANTUM (6k x 4k) / Num. of grids imaged: 1 / Num. of real images: 4583 |
Image scans | Sampling size: 5 µm / Width: 5760 / Height: 4092 |
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Processing
Software | Name: PHENIX / Version: 1.19_4080: / Classification: refinement | ||||||||||||||||||||||||||||
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EM software |
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CTF correction | Type: NONE | ||||||||||||||||||||||||||||
Particle selection | Num. of particles selected: 1296929 | ||||||||||||||||||||||||||||
Symmetry | Point symmetry: C1 (asymmetric) | ||||||||||||||||||||||||||||
3D reconstruction | Resolution: 4.3 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 344920 / Algorithm: FOURIER SPACE / Num. of class averages: 2 / Symmetry type: POINT | ||||||||||||||||||||||||||||
Refine LS restraints |
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