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- PDB-7qur: SARS-CoV-2 Spike with ethylbenzamide-tri-iodo Siallyllactose, C3 ... -
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Open data
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Basic information
Entry | Database: PDB / ID: 7qur | ||||||
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Title | SARS-CoV-2 Spike with ethylbenzamide-tri-iodo Siallyllactose, C3 symmetry | ||||||
![]() | Spike glycoprotein,Fibritin | ||||||
![]() | VIRAL PROTEIN / SARS-CoV-2 Spike | ||||||
Function / homology | ![]() virion component / Maturation of spike protein / viral translation / Translation of Structural Proteins / host cell surface / Virion Assembly and Release / host extracellular space / symbiont-mediated-mediated suppression of host tetherin activity / Induction of Cell-Cell Fusion / structural constituent of virion ...virion component / Maturation of spike protein / viral translation / Translation of Structural Proteins / host cell surface / Virion Assembly and Release / host extracellular space / symbiont-mediated-mediated suppression of host tetherin activity / Induction of Cell-Cell Fusion / structural constituent of virion / entry receptor-mediated virion attachment to host cell / membrane fusion / host cell endoplasmic reticulum-Golgi intermediate compartment membrane / Attachment and Entry / 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 / receptor ligand activity / endocytosis involved in viral entry into host cell / 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: 2.27 Å | ||||||
![]() | Naismith, J.H. / Yang, Y. / Liu, J.W. | ||||||
Funding support | 1items
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![]() | ![]() Title: Pathogen-sugar interactions revealed by universal saturation transfer analysis. Authors: Charles J Buchanan / Ben Gaunt / Peter J Harrison / Yun Yang / Jiwei Liu / Aziz Khan / Andrew M Giltrap / Audrey Le Bas / Philip N Ward / Kapil Gupta / Maud Dumoux / Tiong Kit Tan / Lisa ...Authors: Charles J Buchanan / Ben Gaunt / Peter J Harrison / Yun Yang / Jiwei Liu / Aziz Khan / Andrew M Giltrap / Audrey Le Bas / Philip N Ward / Kapil Gupta / Maud Dumoux / Tiong Kit Tan / Lisa Schimaski / Sergio Daga / Nicola Picchiotti / Margherita Baldassarri / Elisa Benetti / Chiara Fallerini / Francesca Fava / Annarita Giliberti / Panagiotis I Koukos / Matthew J Davy / Abirami Lakshminarayanan / Xiaochao Xue / Georgios Papadakis / Lachlan P Deimel / Virgínia Casablancas-Antràs / Timothy D W Claridge / Alexandre M J J Bonvin / Quentin J Sattentau / Simone Furini / Marco Gori / Jiandong Huo / Raymond J Owens / Christiane Schaffitzel / Imre Berger / Alessandra Renieri / / James H Naismith / Andrew J Baldwin / Benjamin G Davis / ![]() ![]() ![]() ![]() Abstract: Many pathogens exploit host cell-surface glycans. However, precise analyses of glycan ligands binding with heavily modified pathogen proteins can be confounded by overlapping sugar signals and/or ...Many pathogens exploit host cell-surface glycans. However, precise analyses of glycan ligands binding with heavily modified pathogen proteins can be confounded by overlapping sugar signals and/or compounded with known experimental constraints. Universal saturation transfer analysis (uSTA) builds on existing nuclear magnetic resonance spectroscopy to provide an automated workflow for quantitating protein-ligand interactions. uSTA reveals that early-pandemic, B-origin-lineage severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) spike trimer binds sialoside sugars in an "end-on" manner. uSTA-guided modeling and a high-resolution cryo-electron microscopy structure implicate the spike N-terminal domain (NTD) and confirm end-on binding. This finding rationalizes the effect of NTD mutations that abolish sugar binding in SARS-CoV-2 variants of concern. Together with genetic variance analyses in early pandemic patient cohorts, this binding implicates a sialylated polylactosamine motif found on tetraantennary N-linked glycoproteins deep in the human lung as potentially relevant to virulence and/or zoonosis. | ||||||
History |
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Structure visualization
Structure viewer | Molecule: ![]() ![]() |
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Downloads & links
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Download
PDBx/mmCIF format | ![]() | 832.1 KB | Display | ![]() |
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PDB format | ![]() | 549.6 KB | Display | ![]() |
PDBx/mmJSON format | ![]() | Tree view | ![]() | |
Others | ![]() |
-Validation report
Summary document | ![]() | 1.8 MB | Display | ![]() |
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Full document | ![]() | 1.9 MB | Display | |
Data in XML | ![]() | 86.9 KB | Display | |
Data in CIF | ![]() | 134.1 KB | Display | |
Arichive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Related structure data | ![]() 14152MC ![]() 7qusC M: map data used to model this data 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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Noncrystallographic symmetry (NCS) | NCS domain:
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Components
-Protein , 1 types, 3 molecules ABC
#1: Protein | Mass: 139735.922 Da / Num. of mol.: 3 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() Gene: S, 2, wac / Production host: ![]() |
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-Sugars , 4 types, 51 molecules 


#2: Polysaccharide | 2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose Source method: isolated from a genetically manipulated source #3: Polysaccharide | Type: oligosaccharide / Mass: 716.682 Da / Num. of mol.: 3 Source method: isolated from a genetically manipulated source #4: Sugar | ChemComp-NAG / #6: Sugar | |
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-Non-polymers , 3 types, 288 molecules 




#5: Chemical | #7: Chemical | #8: Water | ChemComp-HOH / | |
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-Details
Has ligand of interest | Y |
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Has protein modification | Y |
-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
Component | Name: SARS-CoV-2 Spike with ethylbenzamide-tri-iodo Siallyllactose, C3 symmetry Type: COMPLEX / Entity ID: #1 / Source: RECOMBINANT | ||||||||||||
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Source (natural) |
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Source (recombinant) | Organism: ![]() | ||||||||||||
Buffer solution | pH: 7.5 | ||||||||||||
Specimen | Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES | ||||||||||||
Vitrification | Cryogen name: ETHANE / Humidity: 100 % |
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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 defocus max: 2400 nm / Nominal defocus min: 800 nm |
Image recording | Electron dose: 60 e/Å2 / Detector mode: COUNTING / Film or detector model: GATAN K2 SUMMIT (4k x 4k) |
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Processing
Software |
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CTF correction | Type: PHASE FLIPPING ONLY | |||||||||
3D reconstruction | Resolution: 2.27 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 312018 / Symmetry type: POINT | |||||||||
Refinement | Cross valid method: NONE Stereochemistry target values: GeoStd + Monomer Library + CDL v1.2 | |||||||||
Displacement parameters | Biso mean: 55.43 Å2 |