27WL | pdb_000027wl

H9 Haemagglutinin in Complex with Sulfated 3'SLN

PDB DOI: https://doi.org/10.2210/pdb27WL/pdb
EM Map EMD-81513: EMDB EMDataResource

Classification: VIRAL PROTEIN
Organism(s): Influenza A virus
Expression System: Baculovirus expression vector pFastBac1-HM
Mutation(s): No

Deposited: 2026-06-15 Released: 2026-11-11
Deposition Author(s): Wang, M., Luo, H., Peng, Q., Shi, Y., Gao, F.G.
Funding Organization(s): National Natural Science Foundation of China (NSFC)

Experimental Data Snapshot

Method: ELECTRON MICROSCOPY
Resolution: 3.00 Å
Aggregation State: PARTICLE
Reconstruction Method: SINGLE PARTICLE

wwPDB Validation 3D Report Full Report

Validation slider image for 27WL

This is version 1.0 of the entry. See complete history.

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., Qi, J.X., Shi, Y., Pu, J., Gao, F.G.

(2026) J Virol

DOI: https://doi.org/10.1128/jvi.01511-26

Macromolecule Content

Total Structure Weight: 337.39 kDa
Atom Count: 11,310
Modeled Residue Count: 1,419
Deposited Residue Count: 2,976
Unique protein chains: 1

Macromolecules

Find similar proteins by:

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Hemagglutinin	A, B, C, D, E A, B, C, D, E, F	496	Influenza A virus	Mutation(s): 0 Gene Names: HA
UniProt
Find proteins for A0A8A4VFB5 (Influenza A virus) Explore A0A8A4VFB5 Go to UniProtKB: A0A8A4VFB5
Entity Groups
Sequence Clusters	30% Identity 50% Identity 70% Identity 90% Identity 95% Identity 100% Identity
UniProt Group	A0A8A4VFB5
Sequence Annotations Expand
Reference Sequence

Oligosaccharides

Entity ID: 2
Molecule	Chains	Length	2D Diagram	Glycosylation	D Interactions
N-acetyl-alpha-neuraminic acid-(2-3)-beta-D-galactopyranose-(1-4)-2-acetamido-2-deoxy-6-O-sulfo-beta-D-glucopyranose	G, H, I	3		N/A	Interactions Focus chain G Focus chain H Focus chain I Interactions & Density Focus chain G Focus chain H Focus chain I

Experimental Data & Validation

Experimental Data

Method: ELECTRON MICROSCOPY
Resolution: 3.00 Å
Aggregation State: PARTICLE
Reconstruction Method: SINGLE PARTICLE

EM Software:

Task	Software Package	Version
MODEL REFINEMENT	PHENIX	1.20.1_4487
RECONSTRUCTION	cryoSPARC

Structure Validation

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Entry History

& Funding Information

Deposition Data

Released Date: 2026-11-11

Deposition Author(s):

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

Revision History (Full details and data files)

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