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Yorodumi- PDB-9elm: Cryo-EM structure of SARS-CoV-2 Omicron JN.1.11 spike protein (cl... -
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Open data
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Basic information
| Entry | Database: PDB / ID: 9elm | ||||||||||||||||||||||||
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| Title | Cryo-EM structure of SARS-CoV-2 Omicron JN.1.11 spike protein (closed state) | ||||||||||||||||||||||||
Components | Spike glycoprotein | ||||||||||||||||||||||||
Keywords | VIRAL PROTEIN / SARS-CoV-2 / COVID-19 / Spike | ||||||||||||||||||||||||
| Function / homology | Function and homology informationhost cell endoplasmic reticulum-Golgi intermediate compartment membrane / positive regulation of viral entry into host cell / receptor-mediated virion attachment to host cell / host cell surface receptor binding / 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 ...host cell endoplasmic reticulum-Golgi intermediate compartment membrane / positive regulation of viral entry into host cell / receptor-mediated virion attachment to host cell / host cell surface receptor binding / 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 / identical protein binding / membrane Similarity search - Function | ||||||||||||||||||||||||
| Biological species | ![]() | ||||||||||||||||||||||||
| Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 2.68 Å | ||||||||||||||||||||||||
Authors | Feng, Z. / Huang, J. / Ward, A.B. | ||||||||||||||||||||||||
| Funding support | United States, 1items
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Citation | Journal: Cell Rep / Year: 2025Title: Structural and functional insights into the evolution of SARS-CoV-2 KP.3.1.1 spike protein. Authors: Ziqi Feng / Jiachen Huang / Sabyasachi Baboo / Jolene K Diedrich / Sandhya Bangaru / James C Paulson / John R Yates / Meng Yuan / Ian A Wilson / Andrew B Ward / ![]() Abstract: The JN.1-sublineage KP.3.1.1 recently emerged as the globally prevalent SARS-CoV-2 variant, demonstrating increased infectivity and antibody escape. We investigate how mutations and a deletion in the ...The JN.1-sublineage KP.3.1.1 recently emerged as the globally prevalent SARS-CoV-2 variant, demonstrating increased infectivity and antibody escape. We investigate how mutations and a deletion in the KP.3.1.1 spike protein (S) affect hACE2 binding and antibody escape. Mass spectrometry confirms a new glycan site at residue N30 that alters the glycoforms at neighboring N61. Cryoelectron microscopy (cryo-EM) structures show that the N30 glycan and rearrangement of adjacent residues do not significantly change the overall spike structure, up-down ratio of receptor-binding domains (RBDs), or hACE2 binding. Furthermore, a KP.3.1.1 S with hACE2 structure further confirms an epistatic effect between F456L and Q493E on hACE2 binding. Our analysis shows that SARS-CoV-2 variants that emerged after late 2023 are now incorporating reversions to residues found in other sarbecoviruses, including the N30 glycan, Q493E, and others. Overall, these results inform on the structural and functional consequences of the KP.3.1.1 mutations, the current SARS-CoV-2 evolutionary trajectory, and immune evasion. | ||||||||||||||||||||||||
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Structure visualization
| Structure viewer | Molecule: Molmil Jmol/JSmol |
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Downloads & links
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Download
| PDBx/mmCIF format | 9elm.cif.gz | 639.6 KB | Display | PDBx/mmCIF format |
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| PDB format | pdb9elm.ent.gz | 516.1 KB | Display | PDB format |
| PDBx/mmJSON format | 9elm.json.gz | Tree view | PDBx/mmJSON format | |
| Others | Other downloads |
-Validation report
| Summary document | 9elm_validation.pdf.gz | 2.3 MB | Display | wwPDB validaton report |
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| Full document | 9elm_full_validation.pdf.gz | 2.3 MB | Display | |
| Data in XML | 9elm_validation.xml.gz | 99.7 KB | Display | |
| Data in CIF | 9elm_validation.cif.gz | 151.7 KB | Display | |
| Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/el/9elm ftp://data.pdbj.org/pub/pdb/validation_reports/el/9elm | HTTPS FTP |
-Related structure data
| Related structure data | ![]() 48155MC ![]() 9eleC ![]() 9elfC ![]() 9elgC ![]() 9elhC ![]() 9eliC ![]() 9eljC ![]() 9elkC ![]() 9ellC ![]() 9elnC ![]() 9eloC ![]() 9elpC ![]() 9elqC M: map data used to model this data C: citing same article ( |
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| Similar structure data | Similarity search - Function & homology F&H Search |
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Links
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Assembly
| Deposited unit | ![]()
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Components
| #1: Protein | Mass: 133300.125 Da / Num. of mol.: 3 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() Production host: Homo sapiens (human) / References: UniProt: A0A6N0C4S6#2: 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 #3: 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 #4: Sugar | ChemComp-NAG / Has ligand of interest | N | 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: SARS-CoV-2 Omicron JN.1.11 spike protein / Type: COMPLEX / Entity ID: #1 / Source: RECOMBINANT |
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| Source (natural) | Organism: ![]() |
| Source (recombinant) | Organism: Homo sapiens (human) |
| Buffer solution | pH: 7.4 |
| Specimen | Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES |
| Vitrification | Cryogen name: ETHANE |
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Electron microscopy imaging
| Microscopy | Model: TFS GLACIOS |
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| Electron gun | Electron source: FIELD EMISSION GUN / Accelerating voltage: 200 kV / Illumination mode: FLOOD BEAM |
| Electron lens | Mode: BRIGHT FIELD / Nominal defocus max: 1700 nm / Nominal defocus min: 700 nm |
| Image recording | Electron dose: 44.84 e/Å2 / Film or detector model: FEI FALCON IV (4k x 4k) |
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Processing
| EM software | Name: PHENIX / Version: 1.20.1_4487 / Category: model refinement |
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| CTF correction | Type: PHASE FLIPPING AND AMPLITUDE CORRECTION |
| 3D reconstruction | Resolution: 2.68 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 42460 / Symmetry type: POINT |
| Refinement | Highest resolution: 2.68 Å Stereochemistry target values: REAL-SPACE (WEIGHTED MAP SUM AT ATOM CENTERS) |
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Homo sapiens (human)
FIELD EMISSION GUN