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Open data
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Basic information
Entry | Database: PDB / ID: 8zy4 | |||||||||||||||||||||||||||||||||
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Title | Sarbecovirus YN2013 Spike Trimer in a Locked Conformation | |||||||||||||||||||||||||||||||||
![]() | Spike glycoprotein | |||||||||||||||||||||||||||||||||
![]() | VIRAL PROTEIN / spike protein | |||||||||||||||||||||||||||||||||
Function / homology | ![]() host cell endoplasmic reticulum-Golgi intermediate compartment membrane / receptor-mediated virion attachment to host cell / 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 / host cell plasma membrane / virion membrane / membrane Similarity search - Function | |||||||||||||||||||||||||||||||||
Biological species | ![]() | |||||||||||||||||||||||||||||||||
Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 2.53 Å | |||||||||||||||||||||||||||||||||
![]() | Wang, J. / Xiong, X. | |||||||||||||||||||||||||||||||||
Funding support | 2items
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![]() | ![]() Title: SARS-related coronavirus S-protein structures reveal synergistic RBM interactions underpinning high-affinity human ACE2 binding. Authors: Jingjing Wang / Yong Ma / Zimu Li / Hang Yuan / Banghui Liu / Zexuan Li / Mengzhen Su / Gul Habib / Yutong Liu / Lutang Fu / Peiyi Wang / Mei Li / Jun He / Jing Chen / Peng Zhou / Zhengli ...Authors: Jingjing Wang / Yong Ma / Zimu Li / Hang Yuan / Banghui Liu / Zexuan Li / Mengzhen Su / Gul Habib / Yutong Liu / Lutang Fu / Peiyi Wang / Mei Li / Jun He / Jing Chen / Peng Zhou / Zhengli Shi / Xinwen Chen / Xiaoli Xiong / ![]() Abstract: High-affinity and specific binding toward the human angiotensin-converting enzyme 2 (hACE2) receptor by severe acute respiratory syndrome coronavirus (SARS)-related coronaviruses (SARSr-CoVs) remains ...High-affinity and specific binding toward the human angiotensin-converting enzyme 2 (hACE2) receptor by severe acute respiratory syndrome coronavirus (SARS)-related coronaviruses (SARSr-CoVs) remains incompletely understood. We report cryo-electron microscopy structures of eight different S-proteins from SARSr-CoVs found across Asia, Europe, and Africa. These S-proteins all adopt tightly packed, locked, prefusion conformations. These structures enable the classification of SARSr-CoV S-proteins into three types, based on their receptor-binding motif (RBM) structures and ACE2 binding characteristics. Type-2 S-proteins often preferentially bind bat ACE2 (bACE2) over hACE2. We report a structure of a type-2 BtKY72-RBD in complex with bACE2 to understand ACE2 specificity. Structure-guided mutagenesis of BtKY72-RBD reveals that multiple synergistic mutations in four different regions of RBM are required to achieve high-affinity hACE2 binding. Similar RBM changes can also confer hACE2 binding to another type-2 BM48-31 S-protein, which is primarily non-ACE2 binding. These results provide an understanding of how high-affinity hACE2 binding may be acquired by SARSr-CoV S-proteins. | |||||||||||||||||||||||||||||||||
History |
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Structure visualization
Structure viewer | Molecule: ![]() ![]() |
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Downloads & links
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Download
PDBx/mmCIF format | ![]() | 658.1 KB | Display | ![]() |
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PDB format | ![]() | 536.7 KB | Display | ![]() |
PDBx/mmJSON format | ![]() | Tree view | ![]() | |
Others | ![]() |
-Validation report
Arichive directory | ![]() ![]() | HTTPS FTP |
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-Related structure data
Related structure data | ![]() 60555MC ![]() 8zy0C ![]() 8zy1C ![]() 8zy2C ![]() 8zy3C ![]() 8zy5C ![]() 8zy6C ![]() 8zy7C ![]() 8zy9C ![]() 8zyaC 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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1 |
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Components
#1: Protein | Mass: 137681.406 Da / Num. of mol.: 3 / Mutation: K946P, V947P Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() #2: Polysaccharide | 2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose #3: Sugar | ChemComp-NAG / #4: Chemical | Has ligand of interest | Y | Has protein modification | Y | |
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-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: the spike protein of YN2013 strain / Type: ORGANELLE OR CELLULAR COMPONENT / Details: the spike trimer / Entity ID: #1 / Source: RECOMBINANT | |||||||||||||||||||||||||
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Molecular weight | Value: 0.45 MDa / Experimental value: YES | |||||||||||||||||||||||||
Source (natural) | Organism: ![]() | |||||||||||||||||||||||||
Source (recombinant) | Organism: ![]() | |||||||||||||||||||||||||
Details of virus | Empty: YES / Enveloped: NO / Isolate: STRAIN / Type: VIROID | |||||||||||||||||||||||||
Buffer solution | pH: 7.4 Details: 137 mM NaCl, 2.7 mM KCl, 10 mM Na2HPO4, and 1.8 mM KH2PO4. | |||||||||||||||||||||||||
Buffer component |
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Specimen | Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES | |||||||||||||||||||||||||
Vitrification | Instrument: FEI VITROBOT MARK IV / Cryogen name: ETHANE / Humidity: 100 % / Chamber temperature: 277 K |
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Electron microscopy imaging
Experimental equipment | ![]() Model: Talos Arctica / Image courtesy: FEI Company |
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Microscopy | Model: FEI TALOS ARCTICA |
Electron gun | Electron source: ![]() |
Electron lens | Mode: BRIGHT FIELD / Nominal defocus max: 2200 nm / Nominal defocus min: 800 nm / Cs: 2.7 mm |
Image recording | Electron dose: 50 e/Å2 / Film or detector model: GATAN K3 (6k x 4k) |
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Processing
EM software | Name: RELION / Version: 4.01 / Category: CTF correction | ||||||||||||||||||||||||
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CTF correction | Type: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||
3D reconstruction | Resolution: 2.53 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 452110 / Symmetry type: POINT | ||||||||||||||||||||||||
Refinement | Highest resolution: 2.53 Å Stereochemistry target values: REAL-SPACE (WEIGHTED MAP SUM AT ATOM CENTERS) | ||||||||||||||||||||||||
Refine LS restraints |
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