9IYX

Structure of HBV surface antigen determined in recombinant spherical subviral particle

• PDB DOI: https://doi.org/10.2210/pdb9IYX/pdb
• EM Map EMD-61003: EMDB EMDataResource

• Classification: VIRAL PROTEIN
• Organism(s): HBV genotype D3
• Expression System: Homo sapiens
• Mutation(s): No 


• Deposited: 2024-07-31 Released: 2025-01-15 
• Deposition Author(s): Chen, L., He, X.
• Funding Organization(s): National Natural Science Foundation of China (NSFC)

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Experimental Data Snapshot

• Method: ELECTRON MICROSCOPY
• Resolution: 3.60 Å
• Aggregation State: PARTICLE 
• Reconstruction Method: SINGLE PARTICLE 

Literature

Structural asymmetry of HBsAg dictates the binding of HBV neutralization antibodies

He, X.

(2025) Cell Discov 

Biological Assembly 1  

Global Symmetry: Cyclic - C2  (Explore in 3D)
Global Stoichiometry: Homo 2-mer - A2 

Biological assembly 1 assigned by authors.

Biological Assembly Evidence: electron microscopy

Macromolecule Content

• Total Structure Weight: 50.99 kDa 
• Atom Count: 2,626 
• Modelled Residue Count: 351 
• Deposited Residue Count: 452 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Large envelope protein	A, B	226	HBV genotype D3	Mutation(s): 0
UniProt
Find proteins for V9P415 (Hepatitis B virus) Explore V9P415  Go to UniProtKB:  V9P415

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
ZN	C [auth A], D [auth B]	ZINC ION Zn PTFCDOFLOPIGGS-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: ELECTRON MICROSCOPY
• Resolution: 3.60 Å
• Aggregation State: PARTICLE 
• Reconstruction Method: SINGLE PARTICLE 

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2025-01-15 
Deposition Author(s): Chen, L., He, X.

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Funding Organization	Location	Grant Number
National Natural Science Foundation of China (NSFC)	China	31821091

Revision History  

• Version 1.0: 2025-01-15
  Type: Initial release