9M2H | pdb_00009m2h

Structure of the auxin importer AUX1 in Arabidopsis thaliana in the CHPAA-bound state

• PDB DOI: https://doi.org/10.2210/pdb9M2H/pdb
• EM Map EMD-63585: EMDB EMDataResource

• Classification: MEMBRANE PROTEIN
• Organism(s): Arabidopsis thaliana
• Expression System: Spodoptera frugiperda
• Mutation(s): No 
• Membrane Protein: Yes  MemProtMD


• Deposited: 2025-02-27 Released: 2025-05-28 
• Deposition Author(s): Sun, L., Liu, X., Wei, H., Yang, Z.
• Funding Organization(s): National Science Foundation (NSF, China)

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Experimental Data Snapshot

• Method: ELECTRON MICROSCOPY
• Resolution: 3.40 Å
• Aggregation State: PARTICLE 
• Reconstruction Method: SINGLE PARTICLE 

Literature

Structure of the auxin importer AUX1 in Arabidopsis thaliana in the CHPAA-bound state

Sun, L., Liu, X., Wei, H., Yang, Z.

To be published.

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A1 

Biological assembly 1 assigned by authors.

Biological Assembly Evidence: electron microscopy

Macromolecule Content 

• Total Structure Weight: 54.29 kDa 
• Atom Count: 3,453 
• Modeled Residue Count: 431 
• Deposited Residue Count: 485 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Auxin transporter protein 1	A	485	Arabidopsis thaliana	Mutation(s): 0  Gene Names: AUX1, AUX, PIR1, WAV5, At2g38120, F16M14.5 Membrane Entity: Yes
UniProt
Find proteins for Q96247 (Arabidopsis thaliana) Explore Q96247  Go to UniProtKB:  Q96247

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
3C4 (Subject of Investigation/LOI)	B [auth A]	(3-CHLORO-4-HYDROXYPHENYL)ACETIC ACID C8 H7 Cl O3 IYTUKSIOQKTZEG-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: ELECTRON MICROSCOPY
• Resolution: 3.40 Å
• Aggregation State: PARTICLE 
• Reconstruction Method: SINGLE PARTICLE 

EM Software:

Task	Software Package	Version
MODEL REFINEMENT	PHENIX	1.13_2998:

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2025-05-28 
Deposition Author(s): Sun, L., Liu, X., Wei, H., Yang, Z.

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Funding Organization	Location	Grant Number
National Science Foundation (NSF, China)	China	32322041
National Science Foundation (NSF, China)	China	32321001
National Science Foundation (NSF, China)	China	31900885

Revision History  

• Version 1.0: 2025-05-28
  Type: Initial release
  
• Version 2.0: 2025-06-11
  Type: Coordinate replacement
  Reason: Chirality error
  Changes: Atomic model, Data collection, Derived calculations, Structure summary