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Yorodumi- PDB-7wsu: Cryo-EM structure of the barley Yellow stripe 1 transporter in co... -
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Basic information
| Entry | Database: PDB / ID: 7wsu | ||||||
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| Title | Cryo-EM structure of the barley Yellow stripe 1 transporter in complex with Fe(III)-PDMA | ||||||
Components | Iron-phytosiderophore transporter | ||||||
Keywords | METAL TRANSPORT / iron-phytosiderophore transporter / proline 2'-deoxymugineic acid | ||||||
| Function / homology | Function and homology informationiron-nicotianamine transmembrane transporter activity / oligopeptide transmembrane transporter activity / seed development / response to iron ion / plasma membrane Similarity search - Function | ||||||
| Biological species | ![]() | ||||||
| Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 2.9 Å | ||||||
Authors | Yamagata, A. | ||||||
| Funding support | Japan, 1items
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Citation | Journal: Nat Commun / Year: 2022Title: Uptake mechanism of iron-phytosiderophore from the soil based on the structure of yellow stripe transporter. Authors: Atsushi Yamagata / Yoshiko Murata / Kosuke Namba / Tohru Terada / Shuya Fukai / Mikako Shirouzu / ![]() Abstract: Calcareous soils cover one-third of all land and cause severe growth defects in plants due to the poor water solubility of iron at high pH. Poaceae species use a unique chelation strategy, whereby ...Calcareous soils cover one-third of all land and cause severe growth defects in plants due to the poor water solubility of iron at high pH. Poaceae species use a unique chelation strategy, whereby plants secrete a high-affinity metal chelator, known as phytosiderophores (mugineic acids), and reabsorb the iron-phytosiderophore complex by the yellow stripe 1/yellow stripe 1-like (YS1/YSL) transporter for efficient uptake of iron from the soil. Here, we present three cryo-electron microscopy structures of barley YS1 (HvYS1) in the apo state, in complex with an iron-phytosiderophore complex, Fe(III)-deoxymugineic acid (Fe(III)-DMA), and in complex with the iron-bound synthetic DMA analog (Fe(III)-PDMA). The structures reveal a homodimeric assembly mediated through an anti-parallel β-sheet interaction with cholesterol hemisuccinate. Each protomer adopts an outward open conformation, and Fe(III)-DMA is bound near the extracellular space in the central cavity. Fe(III)-PDMA occupies the same binding site as Fe(III)-DMA, demonstrating that PDMA can function as a potent fertilizer in an essentially identical manner to DMA. Our results provide a structural framework for iron-phytosiderophore recognition and transport by YS1/YSL transporters, which will enable the rational design of new, high-potency fertilizers. | ||||||
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Structure visualization
| Structure viewer | Molecule: Molmil Jmol/JSmol |
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Downloads & links
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Download
| PDBx/mmCIF format | 7wsu.cif.gz | 221.8 KB | Display | PDBx/mmCIF format |
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| PDB format | pdb7wsu.ent.gz | 172.9 KB | Display | PDB format |
| PDBx/mmJSON format | 7wsu.json.gz | Tree view | PDBx/mmJSON format | |
| Others | Other downloads |
-Validation report
| Summary document | 7wsu_validation.pdf.gz | 1.4 MB | Display | wwPDB validaton report |
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| Full document | 7wsu_full_validation.pdf.gz | 1.4 MB | Display | |
| Data in XML | 7wsu_validation.xml.gz | 53.1 KB | Display | |
| Data in CIF | 7wsu_validation.cif.gz | 75.4 KB | Display | |
| Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/ws/7wsu ftp://data.pdbj.org/pub/pdb/validation_reports/ws/7wsu | HTTPS FTP |
-Related structure data
| Related structure data | ![]() 32767MC ![]() 7wsrC ![]() 7wstC M: map data used to model this data C: citing same article ( |
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| Similar structure data | Similarity search - Function & homology F&H Search |
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Links
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Assembly
| Deposited unit | ![]()
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| Noncrystallographic symmetry (NCS) | NCS domain:
NCS domain segments:
NCS oper: (Code: given Matrix: (-1, 4.49174878246E-8, -6.5996827847E-10), Vector: |
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Components
| #1: Protein | Mass: 76070.984 Da / Num. of mol.: 2 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() #2: Chemical | ChemComp-Y01 / #3: Chemical | #4: Chemical | Has ligand of interest | N | Has protein modification | Y | |
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-Experimental details
-Experiment
| Experiment | Method: ELECTRON MICROSCOPY |
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| EM experiment | Aggregation state: PARTICLE / 3D reconstruction method: single particle reconstruction |
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Sample preparation
| Component | Name: Yellow stripe 1 in the apo state / Type: CELL / Entity ID: #1 / Source: RECOMBINANT |
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| Source (natural) | Organism: ![]() |
| Source (recombinant) | Organism: ![]() |
| Buffer solution | pH: 7.5 |
| Specimen | Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES |
| Vitrification | Instrument: FEI VITROBOT MARK IV / Cryogen name: ETHANE / Humidity: 100 % / Chamber temperature: 277 K |
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Electron microscopy imaging
| Experimental equipment | ![]() Model: Titan Krios / Image courtesy: FEI Company |
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| Microscopy | Model: FEI TITAN KRIOS |
| Electron gun | Electron source: FIELD EMISSION GUN / Accelerating voltage: 300 kV / Illumination mode: FLOOD BEAM |
| Electron lens | Mode: BRIGHT FIELD / Nominal defocus max: 2500 nm / Nominal defocus min: 600 nm |
| Image recording | Electron dose: 50 e/Å2 / Film or detector model: GATAN K3 BIOQUANTUM (6k x 4k) |
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Processing
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| EM software |
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| CTF correction | Type: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||
| Symmetry | Point symmetry: C2 (2 fold cyclic) | ||||||||||||||||||||||||
| 3D reconstruction | Resolution: 2.9 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 547619 / Symmetry type: POINT | ||||||||||||||||||||||||
| Refinement | Cross valid method: NONE Stereochemistry target values: GeoStd + Monomer Library + CDL v1.2 | ||||||||||||||||||||||||
| Displacement parameters | Biso mean: 48.62 Å2 | ||||||||||||||||||||||||
| Refine LS restraints |
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| Refine LS restraints NCS | Type: NCS constraints / Rms dev position: 8.34412738705E-5 Å |
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FIELD EMISSION GUN