9U69 | pdb_00009u69

Structure of HN-113S HA at pH 6.4.

• PDB DOI: https://doi.org/10.2210/pdb9U69/pdb
• EM Map EMD-63900: EMDB EMDataResource

• Classification: VIRAL PROTEIN
• Organism(s): Influenza A virus
• Expression System: Homo sapiens
• Mutation(s): Yes 


• Deposited: 2025-03-22 Released: 2026-03-25 
• Deposition Author(s): Deng, G.J., Sun, H.L., Peng, Q.
• Funding Organization(s): National Natural Science Foundation of China (NSFC)

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Experimental Data Snapshot

• Method: ELECTRON MICROSCOPY
• Resolution: 3.54 Å
• Aggregation State: PARTICLE 
• Reconstruction Method: SINGLE PARTICLE 

Literature

Structure of HN-113S HA at pH 6.4.

Deng, G.J., Sun, H.L., Peng, Q.

To be published.

Biological Assembly 1  

Global Symmetry: Cyclic - C3  (Explore in 3D)
Global Stoichiometry: Hetero 6-mer - A3B3 

Biological assembly 1 assigned by authors.

Biological Assembly Evidence: electron microscopy

Macromolecule Content 

• Total Structure Weight: 184.63 kDa 
• Atom Count: 11,306 
• Modeled Residue Count: 1,431 
• Deposited Residue Count: 1,647 
• Unique protein chains: 2

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Hemagglutinin	A, C, E	327	Influenza A virus	Mutation(s): 0  Gene Names: HA
UniProt
Find proteins for A0A6G5UYK1 (Influenza A virus) Explore A0A6G5UYK1  Go to UniProtKB:  A0A6G5UYK1
Glycosylation
Glycosylation Sites: 1

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
Hemagglutinin	B, D, F	222	Influenza A virus	Mutation(s): 1  Gene Names: HA
UniProt
Find proteins for A0A6G5UYN5 (Influenza A virus) Explore A0A6G5UYN5  Go to UniProtKB:  A0A6G5UYN5

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
NAG (Subject of Investigation/LOI)	G [auth E]	2-acetamido-2-deoxy-beta-D-glucopyranose C8 H15 N O6 OVRNDRQMDRJTHS-FMDGEEDCSA-N

Experimental Data & Validation

Experimental Data

• Method: ELECTRON MICROSCOPY
• Resolution: 3.54 Å
• Aggregation State: PARTICLE 
• Reconstruction Method: SINGLE PARTICLE 

EM Software:

Task	Software Package	Version
RECONSTRUCTION	cryoSPARC

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2026-03-25 
Deposition Author(s): Deng, G.J., Sun, H.L., Peng, Q.

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Funding Organization	Location	Grant Number
National Natural Science Foundation of China (NSFC)	China	32200752

Revision History  

• Version 1.0: 2026-03-25
  Type: Initial release