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- PDB-9jds: Structure of the auxin importer AUX1 in Arabidopsis thaliana in t... -

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Basic information

Entry
Database: PDB / ID: 9jds
TitleStructure of the auxin importer AUX1 in Arabidopsis thaliana in the IAA-bound state
ComponentsAuxin transporter protein 1
KeywordsMEMBRANE PROTEIN / Auxin / importer / AUX1
Function / homology
Function and homology information


root hair cell differentiation / auxin binding / root cap development / lateral root formation / auxin influx transmembrane transporter activity / positive gravitropism / establishment of planar polarity / auxin polar transport / auxin-activated signaling pathway / symporter activity ...root hair cell differentiation / auxin binding / root cap development / lateral root formation / auxin influx transmembrane transporter activity / positive gravitropism / establishment of planar polarity / auxin polar transport / auxin-activated signaling pathway / symporter activity / amino acid transmembrane transporter activity / response to nematode / endosome / cell surface / Golgi apparatus / plasma membrane
Similarity search - Function
Amino acid transporter, transmembrane domain / Transmembrane amino acid transporter protein
Similarity search - Domain/homology
1H-INDOL-3-YLACETIC ACID / Auxin transporter protein 1
Similarity search - Component
Biological speciesArabidopsis thaliana (thale cress)
MethodELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.4 Å
AuthorsSun, L. / Liu, X. / Wei, H. / Yang, Z.
Funding support China, 3items
OrganizationGrant numberCountry
National Science Foundation (NSF, China)32322041 China
National Science Foundation (NSF, China)32321001 China
National Science Foundation (NSF, China)31900885 China
CitationJournal: To Be Published
Title: Structure of the auxin importer AUX1 in Arabidopsis thaliana in the IAA-bound state
Authors: Sun, L. / Liu, X. / Wei, H. / Yang, Z.
History
DepositionSep 1, 2024Deposition site: PDBJ / Processing site: PDBJ
Revision 1.0Jun 11, 2025Provider: repository / Type: Initial release
Revision 1.0Jun 11, 2025Data content type: EM metadata / Data content type: EM metadata / Provider: repository / Type: Initial release
Revision 1.0Jun 11, 2025Data content type: FSC / Data content type: FSC / Provider: repository / Type: Initial release
Revision 1.0Jun 11, 2025Data content type: Half map / Part number: 1 / Data content type: Half map / Provider: repository / Type: Initial release
Revision 1.0Jun 11, 2025Data content type: Half map / Part number: 2 / Data content type: Half map / Provider: repository / Type: Initial release
Revision 1.0Jun 11, 2025Data content type: Image / Data content type: Image / Provider: repository / Type: Initial release
Revision 1.0Jun 11, 2025Data content type: Primary map / Data content type: Primary map / Provider: repository / Type: Initial release

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

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Assembly

Deposited unit
A: Auxin transporter protein 1
hetero molecules


Theoretical massNumber of molelcules
Total (without water)54,2812
Polymers54,1061
Non-polymers1751
Water362
1


  • Idetical with deposited unit
  • defined by author
  • Evidence: electron microscopy, not applicable
TypeNameSymmetry operationNumber
identity operation1_5551

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Components

#1: Protein Auxin transporter protein 1 / Auxin influx carrier protein 1 / Polar auxin transport inhibitor-resistant protein 1


Mass: 54105.520 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Arabidopsis thaliana (thale cress) / Gene: AUX1, AUX, PIR1, WAV5, At2g38120, F16M14.5 / Cell line (production host): Sf9 / Production host: Spodoptera frugiperda (fall armyworm) / References: UniProt: Q96247
#2: Chemical ChemComp-IAC / 1H-INDOL-3-YLACETIC ACID / INDOLE ACETIC ACID


Mass: 175.184 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C10H9NO2 / Feature type: SUBJECT OF INVESTIGATION
#3: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 2 / Source method: isolated from a natural source / Formula: H2O
Has ligand of interestY
Has protein modificationY

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Experimental details

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Experiment

ExperimentMethod: ELECTRON MICROSCOPY
EM experimentAggregation state: PARTICLE / 3D reconstruction method: single particle reconstruction

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Sample preparation

ComponentName: AUX1 protein in complex with IAA / Type: COMPLEX / Entity ID: #1 / Source: RECOMBINANT
Source (natural)Organism: Arabidopsis thaliana (thale cress)
Source (recombinant)Organism: Spodoptera frugiperda (fall armyworm)
Buffer solutionpH: 7.4
SpecimenEmbedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES
VitrificationCryogen name: ETHANE

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Electron microscopy imaging

Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company
MicroscopyModel: TFS KRIOS
Electron gunElectron source: FIELD EMISSION GUN / Accelerating voltage: 300 kV / Illumination mode: OTHER
Electron lensMode: BRIGHT FIELD / Nominal defocus max: 2000 nm / Nominal defocus min: 1000 nm
Image recordingElectron dose: 50 e/Å2 / Film or detector model: GATAN K3 BIOQUANTUM (6k x 4k)

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Processing

EM softwareName: PHENIX / Version: 1.13_2998: / Category: model refinement
CTF correctionType: NONE
3D reconstructionResolution: 3.4 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 66531 / Symmetry type: POINT

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