47UF | pdb_000047uf

The structure of hemagglutinin H9 hemagglutinin from A/chicken/Jiangsu/C4258/2012 in complex with avian receptor analog 3'SLNLN

• PDB DOI: https://doi.org/10.2210/pdb47UF/pdb

• Classification: VIRAL PROTEIN
• Organism(s): Influenza A virus
• Expression System: Spodoptera frugiperda
• Mutation(s): No 


• Deposited: 2026-10-31 Released: 2026-11-11 
• Deposition Author(s): Wang, M., Peng, R.C., Peng, Q., Qi, J.X., Shi, Y., Gao, G.F.
• Funding Organization(s): National Natural Science Foundation of China (NSFC)

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.62 Å
• R-Value Free: 
  0.257 (Depositor), 0.256 (DCC) 
• R-Value Work: 
  0.231 (Depositor), 0.231 (DCC) 
• R-Value Observed: 
  0.232 (Depositor) 

Starting Model: experimental

Literature

Structural Basis of Avian-to-Human Receptor-Binding Adaptation in H9Ny Influenza A Virus Hemagglutinin

Wang, M., Zhao, C.K., Peng, R.C., Bai, S.R., Yang, W., Xu, Y., Peng, Q., Luo, H., Zhang, W., Wang, F., Liu, J.H., Qi, J.X., Shi, Y., Pu, J., Gao, G.F.

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 and generated by PISA (software)

Biological Assembly Evidence: gel filtration

Macromolecule Content 

• Total Structure Weight: 56.55 kDa 
• Atom Count: 3,888 
• Modeled Residue Count: 478 
• Deposited Residue Count: 492 
• Unique protein chains: 2

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Hemagglutinin	A	316	Influenza A virus	Mutation(s): 0  Gene Names: HA
UniProt
Find proteins for A0A6B7ZFB3 (Influenza A virus) Explore A0A6B7ZFB3  Go to UniProtKB:  A0A6B7ZFB3
Glycosylation
Glycosylation Sites: 3

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
Hemagglutinin	B	176	Influenza A virus	Mutation(s): 0  Gene Names: HA
UniProt
Find proteins for A0A646RLZ6 (Influenza A virus) Explore A0A646RLZ6  Go to UniProtKB:  A0A646RLZ6

Oligosaccharides

Help  

Entity ID: 3
Molecule	Chains	Length	2D Diagram	Glycosylation	D Interactions
N-acetyl-alpha-neuraminic acid-(2-3)-beta-D-galactopyranose	C	2		N/A

Small Molecules

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

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.62 Å
• R-Value Free:  0.257 (Depositor), 0.256 (DCC) 
• R-Value Work:  0.231 (Depositor), 0.231 (DCC) 
• R-Value Observed: 0.232 (Depositor) 

Space Group: P 6₃

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 67.365	α = 90
b = 67.365	β = 90
c = 243.853	γ = 120

Software Package:

Software Name	Purpose
PHENIX	refinement
HKL-2000	data collection
autoPROC	data processing
PHASER	phasing
HKL-2000	data reduction
HKL-2000	data scaling

Structure Validation

Entry History 

& Funding Information

Deposition Data

• Released Date: 2026-11-11 
Deposition Author(s): Wang, M., Peng, R.C., Peng, Q., Qi, J.X., Shi, Y., Gao, G.F.

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Funding Organization	Location	Grant Number
National Natural Science Foundation of China (NSFC)	China	32192452

Revision History  

• Version 1.0: 2026-11-11
  Type: Initial release