9m2h

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

Method: ELECTRON MICROSCOPY Dmax: 75.3 Å Quality: GOOD

1. Protein Identity and Related Structures Protein Identity & Related Structures

Auxin transporter protein 1

Arabidopsis thaliana

UniProt Q96247

State in the Current Structure

Assembly Oligomeric State Construct Mutations and Modifications Ligands, Ions and Associated Components Method and Experimental Conditions Structure Quality
1 Protein monomer Monomer Protein × 1 PDB declaration: monomeric(1) Consistent with protein copy count Chain A; UniProt 1–485 Not recorded 3C4 (3-CHLORO-4-HYDROXYPHENYL)ACETIC ACID × 1 ELECTRON MICROSCOPY cryo-EM buffer:pH 7.4 cryo-EM vitrification conditions:Cryogen ETHANE Resolution 3.40 Å

Other States of the Same Protein in the Database

Each row is a biological assembly of the same UniProt protein in another PDB entry. The “Difference from current entry” column identifies evidence-level differences; no tag means the currently parsed fields agree.

6 other PDB entries and 6 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name AUX1_ARATH
Isoform
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 1–485; UniProt 1–485

The page prioritizes protein identity, the current assembly, associated components, oligomeric state and cross-PDB links. Chain mapping and sequence ranges are retained as data evidence. Internal IDs, import timestamps and assembly operation expressions are maintenance fields and are not shown here.

SAXS scattering curve SAXS Profile

SAXS profile for 9m2h

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 9m2h
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2. Structure Basics 2. Structure Basics

Entry ID entry_id9m2h
Deposition date deposition_date2025-02-27
Structure title titleStructure of the auxin importer AUX1 in Arabidopsis thaliana in the CHPAA-bound state
Keywords keywordsAuxin, importer, AUX1, MEMBRANE PROTEIN; MEMBRANE PROTEIN
Experimental Method methodELECTRON MICROSCOPY

3. SAXS Parameters (CRYSOL theoretical calculation) 3. SAXS Parameters (CRYSOL)

Radius of gyration Rg (Guinier) rg_guinier23.24
Radius of gyration Rg (electron density) rg_electron22.17
Forward intensity I(0) i032689400.00
Molecular weight molecular_weight48716.0 kDa
Excluded volume excluded_volume62846 ų
Envelope volume envelope_volume74540 ų
Hydration-shell volume shell_volume27466 ų
Envelope diameter envelope_diameter77.9
Shell Rg shell_rg29.68
Envelope Rg envelope_rg22.44
Shape Rg shape_rg22.15
Total Rg total_rg23.25
Total atoms total_atoms3453
Residues n_residues431
Spherical-harmonic order n_harmonics20
q range q_range— – 0.5000 −1
Data points n_points101
Shell type shell_typedirectional
Solvent electron density solvent_density0.3340 e/ų
Shell contrast contrast_shell0.0300 e/ų
CRYSOL version crysol_version4.1.3

4. P(r) Distance Distribution (GNOM inversion) 4. P(r) Analysis (GNOM)

Maximum dimension Dmax dmax75.3
Rg (real space) rg_real23.17
Rg uncertainty (real space) rg_real_error0.48
I(0) (real space) i0_real3.2690e+07
I(0) uncertainty (real space) i0_real_error4.4560e+05
Rg (reciprocal space) rg_reciprocal23.19
I(0) (reciprocal space) i0_reciprocal32690000.0000
Solution quality estimate total_estimate0.8943
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks2
Primary peak position r_peak_primary27.8
Skewness Skewness skewness0.280
Kurtosis Kurtosis kurtosis-0.351
Angular range angular_range— – 0.3400 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha7967000.0000
Real-space data points n_real_points66
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.876; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 1.000; Smooth: 0.994

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (2)

8. Citations (1)

9. Files and Curves (10)