+Open data
-Basic information
Entry | Database: EMDB / ID: EMD-31351 | ||||||||||||
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Title | cryo-EM structure of apo GPR158 | ||||||||||||
Map data | |||||||||||||
Sample |
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Function / homology | Function and homology information G protein-coupled glycine receptor activity / regulation of G protein-coupled receptor signaling pathway / positive regulation of neurotransmitter secretion / regulation of synapse organization / enzyme activator activity / cell projection / protein localization to plasma membrane / brain development / cognition / transmembrane signaling receptor activity ...G protein-coupled glycine receptor activity / regulation of G protein-coupled receptor signaling pathway / positive regulation of neurotransmitter secretion / regulation of synapse organization / enzyme activator activity / cell projection / protein localization to plasma membrane / brain development / cognition / transmembrane signaling receptor activity / presynaptic membrane / postsynaptic membrane / G protein-coupled receptor signaling pathway / nucleus / plasma membrane Similarity search - Function | ||||||||||||
Biological species | Homo sapiens (human) | ||||||||||||
Method | single particle reconstruction / cryo EM / Resolution: 3.52 Å | ||||||||||||
Authors | Jeong E / Kim Y / Jeong J / Cho Y | ||||||||||||
Funding support | Korea, Republic Of, 3 items
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Citation | Journal: Nat Commun / Year: 2021 Title: Structure of the class C orphan GPCR GPR158 in complex with RGS7-Gβ5. Authors: Eunyoung Jeong / Yoojoong Kim / Jihong Jeong / Yunje Cho / Abstract: GPR158, a class C orphan GPCR, functions in cognition, stress-induced mood control, and synaptic development. Among class C GPCRs, GPR158 is unique as it lacks a Venus flytrap-fold ligand-binding ...GPR158, a class C orphan GPCR, functions in cognition, stress-induced mood control, and synaptic development. Among class C GPCRs, GPR158 is unique as it lacks a Venus flytrap-fold ligand-binding domain and terminates Gαi/o protein signaling through the RGS7-Gβ5 heterodimer. Here, we report the cryo-EM structures of GPR158 alone and in complex with one or two RGS7-Gβ5 heterodimers. GPR158 dimerizes through Per-Arnt-Sim-fold extracellular and transmembrane (TM) domains connected by an epidermal growth factor-like linker. The TM domain (TMD) reflects both inactive and active states of other class C GPCRs: a compact intracellular TMD, conformations of the two intracellular loops (ICLs) and the TMD interface formed by TM4/5. The ICL2, ICL3, TM3, and first helix of the cytoplasmic coiled-coil provide a platform for the DHEX domain of one RGS7 and the second helix recruits another RGS7. The unique features of the RGS7-binding site underlie the selectivity of GPR158 for RGS7. | ||||||||||||
History |
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-Structure visualization
Movie |
Movie viewer |
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Structure viewer | EM map: SurfViewMolmilJmol/JSmol |
Supplemental images |
-Downloads & links
-EMDB archive
Map data | emd_31351.map.gz | 8.1 MB | EMDB map data format | |
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Header (meta data) | emd-31351-v30.xml emd-31351.xml | 10.1 KB 10.1 KB | Display Display | EMDB header |
Images | emd_31351.png | 99.4 KB | ||
Archive directory | http://ftp.pdbj.org/pub/emdb/structures/EMD-31351 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-31351 | HTTPS FTP |
-Validation report
Summary document | emd_31351_validation.pdf.gz | 320.4 KB | Display | EMDB validaton report |
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Full document | emd_31351_full_validation.pdf.gz | 319.9 KB | Display | |
Data in XML | emd_31351_validation.xml.gz | 6.4 KB | Display | |
Data in CIF | emd_31351_validation.cif.gz | 7.3 KB | Display | |
Arichive directory | https://ftp.pdbj.org/pub/emdb/validation_reports/EMD-31351 ftp://ftp.pdbj.org/pub/emdb/validation_reports/EMD-31351 | HTTPS FTP |
-Related structure data
Related structure data | 7ewlMC 7ewpC 7ewrC M: atomic model generated by this map C: citing same article (ref.) |
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Similar structure data |
-Links
EMDB pages | EMDB (EBI/PDBe) / EMDataResource |
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Related items in Molecule of the Month |
-Map
File | Download / File: emd_31351.map.gz / Format: CCP4 / Size: 113.6 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Projections & slices | Image control
Images are generated by Spider. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Voxel size | X=Y=Z: 0.83 Å | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Density |
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Symmetry | Space group: 1 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Details | EMDB XML:
CCP4 map header:
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-Supplemental data
-Sample components
-Entire : GPR158
Entire | Name: GPR158 |
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Components |
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-Supramolecule #1: GPR158
Supramolecule | Name: GPR158 / type: complex / ID: 1 / Parent: 0 / Macromolecule list: all |
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Source (natural) | Organism: Homo sapiens (human) |
Recombinant expression | Organism: Homo sapiens (human) / Recombinant cell: HEK293 |
Molecular weight | Theoretical: 200 kDa/nm |
-Macromolecule #1: Probable G-protein coupled receptor 158
Macromolecule | Name: Probable G-protein coupled receptor 158 / type: protein_or_peptide / ID: 1 / Number of copies: 2 / Enantiomer: LEVO |
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Source (natural) | Organism: Homo sapiens (human) |
Molecular weight | Theoretical: 77.462703 KDa |
Recombinant expression | Organism: Homo sapiens (human) |
Sequence | String: ASRDPQGRPD SPRERTPKGK PHAQQPGRAS ASDSSAPWSR STDGTILAQK LAEEVPMDVA SYLYTGDSHQ LKRANCSGRY ELAGLPGKW PALASAHPSL HRALDTLTHA TNFLNVMLQS NKSREQNLQD DLDWYQALVW SLLEGEPSIS RAAITFSTDS L SAPAPQVF ...String: ASRDPQGRPD SPRERTPKGK PHAQQPGRAS ASDSSAPWSR STDGTILAQK LAEEVPMDVA SYLYTGDSHQ LKRANCSGRY ELAGLPGKW PALASAHPSL HRALDTLTHA TNFLNVMLQS NKSREQNLQD DLDWYQALVW SLLEGEPSIS RAAITFSTDS L SAPAPQVF LQATREESRI LLQDLSSSAP HLANATLETE WFHGLRRKWR PHLHRRGPNQ GPRGLGHSWR RKDGLGGDKS HF KWSPPYL ECENGSYKPG WLVTLSSAIY GLQPNLVPEF RGVMKVDINL QKVDIDQCSS DGWFSGTHKC HLNNSECMPI KGL GFVLGA YECICKAGFY HPGVLPVNNF RRRGPDQHIS GSTKDVSEEA YVCLPCREGC PFCADDSPCF VQEDKYLRLA IISF QALCM LLDFVSMLVV YHFRKAKSIR ASGLILLETI LFGSLLLYFP VVILYFEPST FRCILLRWAR LLGFATVYGT VTLKL HRVL KVFLSRTAQR IPYMTGGRVM RMLAVILLVV FWFLIGWTSS VCQNLEKQIS LIGQGKTSDH LIFNMCLIDR WDYMTA VAE FLFLLWGVYL CYAVRTVPSA FHEPRYMAVA VHNELIISAI FHTIRFVLAS RLQSDWMLML YFAHTHLTVT VTIGLLL IP KFSHSSNNPR DDIATEAYED ELDMGRSGSY LNSSINSAWS EHSLD |
-Experimental details
-Structure determination
Method | cryo EM |
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Processing | single particle reconstruction |
Aggregation state | particle |
-Sample preparation
Concentration | 12.7 mg/mL |
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Buffer | pH: 7.5 |
Vitrification | Cryogen name: ETHANE / Chamber humidity: 100 % |
-Electron microscopy
Microscope | FEI TALOS ARCTICA |
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Image recording | Film or detector model: GATAN K3 (6k x 4k) / Average electron dose: 50.0 e/Å2 |
Electron beam | Acceleration voltage: 200 kV / Electron source: FIELD EMISSION GUN |
Electron optics | Illumination mode: FLOOD BEAM / Imaging mode: DIFFRACTION |
Experimental equipment | Model: Talos Arctica / Image courtesy: FEI Company |
-Image processing
Final reconstruction | Number classes used: 1 / Resolution.type: BY AUTHOR / Resolution: 3.52 Å / Resolution method: FSC 0.143 CUT-OFF / Number images used: 425819 |
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Initial angle assignment | Type: OTHER |
Final angle assignment | Type: OTHER |