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Yorodumi- EMDB-20923: GltPh in complex with L-aspartate and sodium ions in intermediate... -
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Basic information
| Entry | Database: EMDB / ID: EMD-20923 | |||||||||
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| Title | GltPh in complex with L-aspartate and sodium ions in intermediate outward-facing state | |||||||||
Map data | GltPh iOFS map | |||||||||
Sample |
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Keywords | aspartate transporter / TRANSPORT PROTEIN | |||||||||
| 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 | single particle reconstruction / cryo EM / Resolution: 3.62 Å | |||||||||
Authors | Wang X / Boudker O | |||||||||
| Funding support | United States, 2 items
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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. | |||||||||
| History |
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Structure visualization
| Movie |
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| Structure viewer | EM map: SurfView Molmil Jmol/JSmol |
| Supplemental images |
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Downloads & links
-EMDB archive
| Map data | emd_20923.map.gz | 3.4 MB | EMDB map data format | |
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| Header (meta data) | emd-20923-v30.xml emd-20923.xml | 10.9 KB 10.9 KB | Display Display | EMDB header |
| Images | emd_20923.png | 24.8 KB | ||
| Filedesc metadata | emd-20923.cif.gz | 5.3 KB | ||
| Archive directory | http://ftp.pdbj.org/pub/emdb/structures/EMD-20923 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-20923 | HTTPS FTP |
-Validation report
| Summary document | emd_20923_validation.pdf.gz | 325.9 KB | Display | EMDB validaton report |
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| Full document | emd_20923_full_validation.pdf.gz | 325.5 KB | Display | |
| Data in XML | emd_20923_validation.xml.gz | 6 KB | Display | |
| Data in CIF | emd_20923_validation.cif.gz | 6.9 KB | Display | |
| Arichive directory | https://ftp.pdbj.org/pub/emdb/validation_reports/EMD-20923 ftp://ftp.pdbj.org/pub/emdb/validation_reports/EMD-20923 | HTTPS FTP |
-Related structure data
| Related structure data | ![]() 6uwlMC ![]() 6uwfC M: atomic model generated by this map C: citing same article ( |
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| Similar structure data |
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Links
| EMDB pages | EMDB (EBI/PDBe) / EMDataResource |
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| Related items in Molecule of the Month |
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Map
| File | Download / File: emd_20923.map.gz / Format: CCP4 / Size: 64 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| Annotation | GltPh iOFS map | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Projections & slices | Image control
Images are generated by Spider. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Voxel size | X=Y=Z: 1.06 Å | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Density |
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| Symmetry | Space group: 1 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Details | EMDB XML:
CCP4 map header:
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-Supplemental data
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Sample components
-Entire : Complex of GltPh with L-aspartate and sodium ions in MSP1E3 nanodisc
| Entire | Name: Complex of GltPh with L-aspartate and sodium ions in MSP1E3 nanodisc |
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| Components |
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-Supramolecule #1: Complex of GltPh with L-aspartate and sodium ions in MSP1E3 nanodisc
| Supramolecule | Name: Complex of GltPh with L-aspartate and sodium ions in MSP1E3 nanodisc type: complex / ID: 1 / Parent: 0 / Macromolecule list: #1 |
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| Source (natural) | Organism: ![]() Pyrococcus horikoshii (archaea) |
| Molecular weight | Theoretical: 134 KDa |
-Macromolecule #1: Glutamate transporter homolog
| Macromolecule | Name: Glutamate transporter homolog / type: protein_or_peptide / ID: 1 / Number of copies: 1 / Enantiomer: LEVO |
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| Source (natural) | Organism: ![]() Pyrococcus horikoshii (archaea) |
| Molecular weight | Theoretical: 44.669957 KDa |
| Recombinant expression | Organism: ![]() |
| Sequence | String: (FME)GLYRKYIEY PVLQKILIGL ILGAIVGLIL GHYGYAHAVH TYVKPFGDLF VRLLKMLVMP IVFASLVVGA ASISPA RLG RVGVKIVVYY LLTSAFAVTL GIIMARLFNP GAGIHLAVGG QQFQPHQAPP LVHILLDIVP TNPFGALANG QVLPTIF FA IILGIAITYL ...String: (FME)GLYRKYIEY PVLQKILIGL ILGAIVGLIL GHYGYAHAVH TYVKPFGDLF VRLLKMLVMP IVFASLVVGA ASISPA RLG RVGVKIVVYY LLTSAFAVTL GIIMARLFNP GAGIHLAVGG QQFQPHQAPP LVHILLDIVP TNPFGALANG QVLPTIF FA IILGIAITYL MNSENEKVRK SAETLLDAIN GLAEAMYKIV NGVMQYAPIG VFALIAYVMA EQGVHVVGEL AKVTAAVY V GLTLQILLVY FVLLKIYGID PISFIKHAKD AMLTAFVTRS SSGTLPVTMR VAKEMGISEG IYSFTLPLGA TINMDGTAL YQGVCTFFIA NALGSHLTVG QQLTIVLTAV LASIGTAGVP GAGAIMLAMV LHSVGLPLTD PNVAAAYAMI LGIDAILDMG RTMVNVTGD LTGTAIVAKT EGTLVPR |
-Macromolecule #2: ASPARTIC ACID
| Macromolecule | Name: ASPARTIC ACID / type: ligand / ID: 2 / Number of copies: 1 / Formula: ASP |
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| Molecular weight | Theoretical: 133.103 Da |
| Chemical component information | ![]() ChemComp-ASP: |
-Macromolecule #3: [(2~{R})-1-[2-azanylethoxy(oxidanyl)phosphoryl]oxy-3-hexadecanoyl...
| Macromolecule | Name: [(2~{R})-1-[2-azanylethoxy(oxidanyl)phosphoryl]oxy-3-hexadecanoyloxy-propan-2-yl] (~{Z})-octadec-9-enoate type: ligand / ID: 3 / Number of copies: 1 / Formula: 6OU |
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| Molecular weight | Theoretical: 717.996 Da |
| Chemical component information | ![]() ChemComp-6OU: |
-Experimental details
-Structure determination
| Method | cryo EM |
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Processing | single particle reconstruction |
| Aggregation state | particle |
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Sample preparation
| Buffer | pH: 7.4 |
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| Sugar embedding | Material: ice |
| Vitrification | Cryogen name: ETHANE |
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Electron microscopy
| Microscope | FEI TITAN KRIOS |
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| Image recording | #0 - Image recording ID: 1 / #0 - Film or detector model: GATAN K3 (6k x 4k) / #0 - Average electron dose: 50.1615 e/Å2 / #1 - Image recording ID: 2 / #1 - Film or detector model: GATAN K3 (6k x 4k) / #1 - Average electron dose: 50.1615 e/Å2 |
| Electron beam | Acceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN |
| Electron optics | Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD |
| Experimental equipment | ![]() Model: Titan Krios / Image courtesy: FEI Company |
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About Yorodumi


Keywords
Pyrococcus horikoshii (archaea)
Authors
United States, 2 items
Citation
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