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- PDB-7yck: Crystal structure of SARS-CoV-2 Spike RBD in complex with FP-12A Fab -
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Open data
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Basic information
Entry | Database: PDB / ID: 7yck | ||||||
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Title | Crystal structure of SARS-CoV-2 Spike RBD in complex with FP-12A Fab | ||||||
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![]() | VIRAL PROTEIN/IMMUNE SYSTEM / antibody / SARS-CoV-2 / Spike / RBD / class 4 / VIRAL PROTEIN-IMMUNE SYSTEM complex | ||||||
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 / 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 / receptor-mediated endocytosis of virus by host cell / membrane fusion / Attachment and Entry / positive regulation of viral entry into host cell / receptor-mediated virion attachment to host cell / receptor ligand activity / symbiont-mediated suppression of host innate immune response / 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 | ![]() ![]() ![]() | ||||||
![]() | Nguyen, V.H.T. / Chen, X. | ||||||
Funding support | ![]()
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![]() | ![]() Title: Structural basis for a conserved neutralization epitope on the receptor-binding domain of SARS-CoV-2. Authors: Kuan-Ying A Huang / Xiaorui Chen / Arpita Mohapatra / Hong Thuy Vy Nguyen / Lisa Schimanski / Tiong Kit Tan / Pramila Rijal / Susan K Vester / Rory A Hills / Mark Howarth / Jennifer R Keeffe ...Authors: Kuan-Ying A Huang / Xiaorui Chen / Arpita Mohapatra / Hong Thuy Vy Nguyen / Lisa Schimanski / Tiong Kit Tan / Pramila Rijal / Susan K Vester / Rory A Hills / Mark Howarth / Jennifer R Keeffe / Alexander A Cohen / Leesa M Kakutani / Yi-Min Wu / Md Shahed-Al-Mahmud / Yu-Chi Chou / Pamela J Bjorkman / Alain R Townsend / Che Ma / ![]() ![]() ![]() Abstract: Antibody-mediated immunity plays a crucial role in protection against SARS-CoV-2 infection. We isolated a panel of neutralizing anti-receptor-binding domain (RBD) antibodies elicited upon natural ...Antibody-mediated immunity plays a crucial role in protection against SARS-CoV-2 infection. We isolated a panel of neutralizing anti-receptor-binding domain (RBD) antibodies elicited upon natural infection and vaccination and showed that they recognize an immunogenic patch on the internal surface of the core RBD, which faces inwards and is hidden in the "down" state. These antibodies broadly neutralize wild type (Wuhan-Hu-1) SARS-CoV-2, Beta and Delta variants and some are effective against other sarbecoviruses. We observed a continuum of partially overlapping antibody epitopes from lower to upper part of the inner face of the RBD and some antibodies extend towards the receptor-binding motif. The majority of antibodies are substantially compromised by three mutational hotspots (S371L/F, S373P and S375F) in the lower part of the Omicron BA.1, BA.2 and BA.4/5 RBD. By contrast, antibody IY-2A induces a partial unfolding of this variable region and interacts with a conserved conformational epitope to tolerate all antigenic variations and neutralize diverse sarbecoviruses as well. This finding establishes that antibody recognition is not limited to the normal surface structures on the RBD. In conclusion, the delineation of functionally and structurally conserved RBD epitopes highlights potential vaccine and therapeutic candidates for COVID-19. | ||||||
History |
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Structure visualization
Structure viewer | Molecule: ![]() ![]() |
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Downloads & links
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Download
PDBx/mmCIF format | ![]() | 225.5 KB | Display | ![]() |
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PDB format | ![]() | 174.6 KB | Display | ![]() |
PDBx/mmJSON format | ![]() | Tree view | ![]() | |
Others | ![]() |
-Validation report
Summary document | ![]() | 1.1 MB | Display | ![]() |
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Full document | ![]() | 1.1 MB | Display | |
Data in XML | ![]() | 39.9 KB | Display | |
Data in CIF | ![]() | 55.4 KB | Display | |
Arichive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Related structure data | ![]() 7yclC ![]() 7ycnC ![]() 8hhxC ![]() 8hhyC ![]() 8hhzC ![]() 6zerS S: Starting model for refinement C: citing same article ( |
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Similar structure data | Similarity search - Function & homology ![]() |
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Links
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Assembly
Deposited unit | ![]()
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2 | ![]()
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Unit cell |
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Noncrystallographic symmetry (NCS) | NCS domain:
NCS domain segments:
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Components
-Antibody , 2 types, 4 molecules CEDF
#2: Antibody | Mass: 23925.725 Da / Num. of mol.: 2 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() #3: Antibody | Mass: 23124.326 Da / Num. of mol.: 2 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() |
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-Protein / Non-polymers , 2 types, 129 molecules AB![](data/chem/img/HOH.gif)
![](data/chem/img/HOH.gif)
#1: Protein | Mass: 23047.816 Da / Num. of mol.: 2 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() Gene: S, 2 / Production host: ![]() #6: Water | ChemComp-HOH / | |
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-Sugars , 2 types, 2 molecules
#4: Polysaccharide | beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-[alpha-L-fucopyranose-(1- ...beta-D-mannopyranose-(1-4)-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 |
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#5: 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 |
-Details
Has ligand of interest | N |
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-Experimental details
-Experiment
Experiment | Method: ![]() |
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Sample preparation
Crystal | Density Matthews: 2.7 Å3/Da / Density % sol: 54.42 % |
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Crystal grow | Temperature: 293.15 K / Method: vapor diffusion, hanging drop / pH: 9 Details: 0.2M Ammonium sulfate; 0.05 M Magnesium sulfate heptahydrate, 0.1M BICINE pH 9.0, 2.5% w/v PEG 3350, 2.5%w/v PEG 4000, 2.5% w/v PEG 2000, 2.5% w/v PEG 5000 MME |
-Data collection
Diffraction | Mean temperature: 100 K / Serial crystal experiment: N | ||||||||||||||||||||||||||||||
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Diffraction source | Source: ![]() ![]() ![]() | ||||||||||||||||||||||||||||||
Detector | Type: RAYONIX MX300HE / Detector: CCD / Date: Mar 8, 2021 | ||||||||||||||||||||||||||||||
Radiation | Protocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray | ||||||||||||||||||||||||||||||
Radiation wavelength | Wavelength: 1 Å / Relative weight: 1 | ||||||||||||||||||||||||||||||
Reflection | Resolution: 2.6→45.51 Å / Num. obs: 46056 / % possible obs: 97.8 % / Redundancy: 4 % / Biso Wilson estimate: 53.44 Å2 / CC1/2: 0.995 / Rmerge(I) obs: 0.093 / Rpim(I) all: 0.054 / Rrim(I) all: 0.107 / Net I/σ(I): 5.6 / Num. measured all: 183621 / Scaling rejects: 164 | ||||||||||||||||||||||||||||||
Reflection shell | Diffraction-ID: 1
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Processing
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Refinement | Method to determine structure: ![]() Starting model: 6ZER Resolution: 2.6→32.25 Å / SU ML: 0.38 / Cross valid method: THROUGHOUT / σ(F): 1.99 / Phase error: 27.34 / 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: 163.61 Å2 / Biso mean: 71.7975 Å2 / Biso min: 23 Å2 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Refinement step | Cycle: final / Resolution: 2.6→32.25 Å
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Refine LS restraints NCS |
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LS refinement shell | Refine-ID: X-RAY DIFFRACTION / Rfactor Rfree error: 0 / Total num. of bins used: 16
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