9UN0 | pdb_00009un0

Cryo-EM structure of hemagglutinin from the A/Malaysia/1706215/2007 (H1N1) influenza virus with stabilizing mutations

PDB DOI: https://doi.org/10.2210/pdb9UN0/pdb
EM Map EMD-64334: EMDB EMDataResource

Classification: VIRAL PROTEIN
Organism(s): Influenza A virus (A/Malaysia/1706215/2007(H1N1))
Expression System: Trichoplusia ni
Mutation(s): Yes

Deposited: 2025-04-23 Released: 2026-11-04
Deposition Author(s): Kim, Y.G., Lee, G.Y., Lee, J.O.
Funding Organization(s): National Research Foundation (NRF, Korea)

Experimental Data Snapshot

Method: ELECTRON MICROSCOPY
Resolution: 2.32 Å
Aggregation State: PARTICLE
Reconstruction Method: SINGLE PARTICLE

wwPDB Validation 3D Report Full Report

Validation slider image for 9UN0

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

Literature

Stabilization of the trimeric pre-fusion structures of influenza H1 and H9 hemagglutinins by mutations in the stem helices

Kim, Y.G., Lee, G.Y., Lee, J.O.

To be published.

Macromolecule Content

Total Structure Weight: 168.96 kDa
Atom Count: 11,508
Modeled Residue Count: 1,446
Deposited Residue Count: 1,500
Unique protein chains: 1

Macromolecules

Find similar proteins by:

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Hemagglutinin	A, B, C	500	Influenza A virus (A/Malaysia/1706215/2007(H1N1))	Mutation(s): 4 Gene Names: HA
UniProt
Find proteins for I2D8Q3 (Influenza A virus) Explore I2D8Q3 Go to UniProtKB: I2D8Q3
Entity Groups
Sequence Clusters	30% Identity 50% Identity 70% Identity 90% Identity 95% Identity 100% Identity
UniProt Group	I2D8Q3
Sequence Annotations Expand
Reference Sequence

Experimental Data & Validation

Experimental Data

Method: ELECTRON MICROSCOPY
Resolution: 2.32 Å
Aggregation State: PARTICLE
Reconstruction Method: SINGLE PARTICLE

EM Software:

Task	Software Package	Version
MODEL REFINEMENT	PHENIX	1.21.2_5419

Structure Validation

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Entry History

& Funding Information

Deposition Data

Released Date: 2026-11-04

Deposition Author(s):

Funding Organization	Location	Grant Number
National Research Foundation (NRF, Korea)	Korea, Republic Of	--

Revision History (Full details and data files)

Version 1.0: 2026-11-04
Type: Initial release