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Yorodumi- PDB-6uwf: GltPh in complex with L-aspartate and sodium ions in outward-faci... -
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Open data
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Basic information
| Entry | Database: PDB / ID: 6uwf | |||||||||
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| Title | GltPh in complex with L-aspartate and sodium ions in outward-facing state | |||||||||
Components | Glutamate transporter homolog | |||||||||
Keywords | TRANSPORT PROTEIN / aspartate transporter | |||||||||
| Function / homology | Function and homology informationL-aspartate transmembrane transport / amino acid:sodium symporter activity / L-aspartate transmembrane transporter activity / L-aspartate import across plasma membrane / chloride transmembrane transporter activity / protein homotrimerization / chloride transmembrane transport / metal ion binding / identical protein binding / plasma membrane Similarity search - Function | |||||||||
| Biological species | ![]() Pyrococcus horikoshii (archaea) | |||||||||
| Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.08 Å | |||||||||
Authors | Wang, X. / Boudker, O. | |||||||||
| Funding support | United States, 2items
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Citation | Journal: Nat Chem Biol / Year: 2020Title: Use of paramagnetic F NMR to monitor domain movement in a glutamate transporter homolog. Authors: Yun Huang / Xiaoyu Wang / Guohua Lv / Asghar M Razavi / Gerard H M Huysmans / Harel Weinstein / Clay Bracken / David Eliezer / Olga Boudker / ![]() Abstract: In proteins where conformational changes are functionally important, the number of accessible states and their dynamics are often difficult to establish. Here we describe a novel F-NMR spectroscopy ...In proteins where conformational changes are functionally important, the number of accessible states and their dynamics are often difficult to establish. Here we describe a novel F-NMR spectroscopy approach to probe dynamics of large membrane proteins. We labeled a glutamate transporter homolog with a F probe via cysteine chemistry and with a Ni ion via chelation by a di-histidine motif. We used distance-dependent enhancement of the longitudinal relaxation of F nuclei by the paramagnetic metal to assign the observed resonances. We identified one inward- and two outward-facing states of the transporter, in which the substrate-binding site is near the extracellular and intracellular solutions, respectively. We then resolved the structure of the unanticipated second outward-facing state by cryo-EM. Finally, we showed that the rates of the conformational exchange are accessible from measurements of the metal-enhanced longitudinal relaxation of F nuclei. | |||||||||
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Structure visualization
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| Structure viewer | Molecule: Molmil Jmol/JSmol |
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Downloads & links
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Download
| PDBx/mmCIF format | 6uwf.cif.gz | 84.5 KB | Display | PDBx/mmCIF format |
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| PDB format | pdb6uwf.ent.gz | 60.7 KB | Display | PDB format |
| PDBx/mmJSON format | 6uwf.json.gz | Tree view | PDBx/mmJSON format | |
| Others | Other downloads |
-Validation report
| Summary document | 6uwf_validation.pdf.gz | 730.4 KB | Display | wwPDB validaton report |
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| Full document | 6uwf_full_validation.pdf.gz | 734.1 KB | Display | |
| Data in XML | 6uwf_validation.xml.gz | 19.4 KB | Display | |
| Data in CIF | 6uwf_validation.cif.gz | 26.9 KB | Display | |
| Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/uw/6uwf ftp://data.pdbj.org/pub/pdb/validation_reports/uw/6uwf | HTTPS FTP |
-Related structure data
| Related structure data | ![]() 20922MC ![]() 6uwlC M: map data used to model this data C: citing same article ( |
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| Similar structure data |
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Links
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Assembly
| Deposited unit | ![]()
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Components
| #1: Protein | Mass: 44669.957 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() Pyrococcus horikoshii (archaea) / Production host: ![]() | ||||
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| #2: Chemical | ChemComp-ASP / | ||||
| #3: Chemical | | Has ligand of interest | N | Has protein modification | Y | |
-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: Complex of GltPh with L-aspartate and sodium ions in MSP1E3 nanodisc Type: COMPLEX / Entity ID: #1 / Source: RECOMBINANT |
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| Molecular weight | Value: 0.134 MDa / Experimental value: NO |
| Source (natural) | Organism: ![]() Pyrococcus horikoshii (archaea) |
| Source (recombinant) | Organism: ![]() |
| Buffer solution | pH: 7.4 |
| Specimen | Embedding applied: YES / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES |
| EM embedding | Material: ice |
| Vitrification | Cryogen name: ETHANE |
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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 |
| Image recording | Electron dose: 50.1615 e/Å2 / Film or detector model: GATAN K3 (6k x 4k) |
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Processing
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| CTF correction | Type: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||
| 3D reconstruction | Resolution: 3.08 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 94731 / Symmetry type: POINT | ||||||||||||||||||||||||
| Refinement | Stereochemistry target values: CDL v1.2 | ||||||||||||||||||||||||
| Refine LS restraints |
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About Yorodumi




Pyrococcus horikoshii (archaea)
United States, 2items
Citation
UCSF Chimera












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