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Yorodumi- PDB-9ayx: SARS-CoV-2 Omicron-EG.5.1 3-RBD down Spike Protein Trimer 2 (S-GS... -
+Open data
-Basic information
Entry | Database: PDB / ID: 9ayx | ||||||
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Title | SARS-CoV-2 Omicron-EG.5.1 3-RBD down Spike Protein Trimer 2 (S-GSAS-Omicron-EG.5.1) | ||||||
Components | Spike glycoprotein | ||||||
Keywords | VIRAL PROTEIN / SARS-COV-2 / Glycoprotein / Trimer | ||||||
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 / 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 / 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 | Severe acute respiratory syndrome coronavirus 2 | ||||||
Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3 Å | ||||||
Authors | Zhang, Q.E. / Acharya, P. | ||||||
Funding support | United States, 1items
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Citation | Journal: Mol Cell / Year: 2024 Title: SARS-CoV-2 Omicron XBB lineage spike structures, conformations, antigenicity, and receptor recognition. Authors: Qianyi E Zhang / Jared Lindenberger / Ruth J Parsons / Bhishem Thakur / Rob Parks / Chan Soo Park / Xiao Huang / Salam Sammour / Katarzyna Janowska / Taylor N Spence / Robert J Edwards / ...Authors: Qianyi E Zhang / Jared Lindenberger / Ruth J Parsons / Bhishem Thakur / Rob Parks / Chan Soo Park / Xiao Huang / Salam Sammour / Katarzyna Janowska / Taylor N Spence / Robert J Edwards / Mitchell Martin / Wilton B Williams / Sophie Gobeil / David C Montefiori / Bette Korber / Kevin O Saunders / Barton F Haynes / Rory Henderson / Priyamvada Acharya / Abstract: A recombinant lineage of the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) Omicron variant, named XBB, appeared in late 2022 and evolved descendants that successively swept local and ...A recombinant lineage of the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) Omicron variant, named XBB, appeared in late 2022 and evolved descendants that successively swept local and global populations. XBB lineage members were noted for their improved immune evasion and transmissibility. Here, we determine cryoelectron microscopy (cryo-EM) structures of XBB.1.5, XBB.1.16, EG.5, and EG.5.1 spike (S) ectodomains to reveal reinforced 3-receptor binding domain (RBD)-down receptor-inaccessible closed states mediated by interprotomer RBD interactions previously observed in BA.1 and BA.2. Improved XBB.1.5 and XBB.1.16 RBD stability compensated for stability loss caused by early Omicron mutations, while the F456L substitution reduced EG.5 RBD stability. S1 subunit mutations had long-range impacts on conformation and epitope presentation in the S2 subunit. Our results reveal continued S protein evolution via simultaneous optimization of multiple parameters, including stability, receptor binding, and immune evasion, and the dramatic effects of relatively few residue substitutions in altering the S protein conformational landscape. | ||||||
History |
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-Structure visualization
Structure viewer | Molecule: MolmilJmol/JSmol |
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-Downloads & links
-Download
PDBx/mmCIF format | 9ayx.cif.gz | 569.7 KB | Display | PDBx/mmCIF format |
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PDB format | pdb9ayx.ent.gz | 455.8 KB | Display | PDB format |
PDBx/mmJSON format | 9ayx.json.gz | Tree view | PDBx/mmJSON format | |
Others | Other downloads |
-Validation report
Summary document | 9ayx_validation.pdf.gz | 2.3 MB | Display | wwPDB validaton report |
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Full document | 9ayx_full_validation.pdf.gz | 2.4 MB | Display | |
Data in XML | 9ayx_validation.xml.gz | 91.3 KB | Display | |
Data in CIF | 9ayx_validation.cif.gz | 136.6 KB | Display | |
Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/ay/9ayx ftp://data.pdbj.org/pub/pdb/validation_reports/ay/9ayx | HTTPS FTP |
-Related structure data
Related structure data | 44001MC 8uirC 8uk1C 8v0lC 8v0mC 8v0nC 8v0oC 8v0pC 8v0qC 8v0rC 8v0sC 8v0tC 8v0uC 8v0vC 8v0wC 8v0xC 9aywC 9ayyC M: map data used to model this data C: citing same article (ref.) |
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Similar structure data | Similarity search - Function & homologyF&H Search |
-Links
-Assembly
Deposited unit |
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-Components
#1: Protein | Mass: 142208.547 Da / Num. of mol.: 3 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 #2: Sugar | ChemComp-NAG / 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 |
-Sample preparation
Component | Name: GSAS-EG.5.1 / Type: COMPLEX / Entity ID: #1 / Source: RECOMBINANT |
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Source (natural) | Organism: Severe acute respiratory syndrome coronavirus 2 |
Source (recombinant) | Organism: Homo sapiens (human) |
Buffer solution | pH: 8 |
Specimen | Conc.: 2 mg/ml / Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES |
Specimen support | Grid material: COPPER / Grid mesh size: 300 divisions/in. / Grid type: Quantifoil R1.2/1.3 |
Vitrification | Instrument: LEICA EM GP / Cryogen name: ETHANE / Humidity: 95 % / Chamber temperature: 295.15 K |
-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: FIELD EMISSION GUN / Accelerating voltage: 300 kV / Illumination mode: FLOOD BEAM |
Electron lens | Mode: BRIGHT FIELD / Nominal magnification: 81000 X / Nominal defocus max: 5000 nm / Nominal defocus min: 350 nm / Cs: 2.7 mm |
Specimen holder | Cryogen: NITROGEN |
Image recording | Electron dose: 57.9 e/Å2 / Film or detector model: GATAN K3 BIOQUANTUM (6k x 4k) / Num. of real images: 11757 |
Image scans | Width: 5760 / Height: 4092 |
-Processing
EM software |
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CTF correction | Type: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||
Particle selection | Num. of particles selected: 4961369 | ||||||||||||||||
3D reconstruction | Resolution: 3 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 258265 / Symmetry type: POINT | ||||||||||||||||
Atomic model building | Protocol: FLEXIBLE FIT / Space: REAL |