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- EMDB-25125: Cryo-EM structure of human GPR158 -

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Basic information

Entry
Database: EMDB / ID: EMD-25125
TitleCryo-EM structure of human GPR158
Map data
Sample
  • Complex: Receptor
    • Protein or peptide: G-protein coupled receptor 158
  • Ligand: 1,2-dioleoyl-sn-glycero-3-phosphoethanolamine
  • Ligand: (2S)-1-{[(S)-hydroxy{[(1s,2R,3R,4R,5S,6S)-2,3,4,5,6-pentahydroxycyclohexyl]oxy}phosphoryl]oxy}-3-(octadecanoyloxy)propan-2-yl (5E,8E,11E,14E)-icosa-5,8,11,14-tetraenoate
  • Ligand: CHOLESTEROL
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
G-protein coupled receptor 158/179 / GPCR family 3, C-terminal / 7 transmembrane sweet-taste receptor of 3 GCPR / G-protein coupled receptors family 3 profile.
Similarity search - Domain/homology
Metabotropic glycine receptor
Similarity search - Component
Biological speciesHomo sapiens (human)
Methodsingle particle reconstruction / cryo EM / Resolution: 3.4 Å
AuthorsPatil DN / Singh S / Singh AK / Martemyanov KA
Funding support United States, 1 items
OrganizationGrant numberCountry
National Institutes of Health/National Institute of Mental Health (NIH/NIMH) United States
CitationJournal: Science / Year: 2022
Title: Cryo-EM structure of human GPR158 receptor coupled to the RGS7-Gβ5 signaling complex.
Authors: Dipak N Patil / Shikha Singh / Thibaut Laboute / Timothy S Strutzenberg / Xingyu Qiu / Di Wu / Scott J Novick / Carol V Robinson / Patrick R Griffin / John F Hunt / Tina Izard / Appu K Singh ...Authors: Dipak N Patil / Shikha Singh / Thibaut Laboute / Timothy S Strutzenberg / Xingyu Qiu / Di Wu / Scott J Novick / Carol V Robinson / Patrick R Griffin / John F Hunt / Tina Izard / Appu K Singh / Kirill A Martemyanov /
Abstract: GPR158 is an orphan G protein–coupled receptor (GPCR) highly expressed in the brain, where it controls synapse formation and function. GPR158 has also been implicated in depression, carcinogenesis, ...GPR158 is an orphan G protein–coupled receptor (GPCR) highly expressed in the brain, where it controls synapse formation and function. GPR158 has also been implicated in depression, carcinogenesis, and cognition. However, the structural organization and signaling mechanisms of GPR158 are largely unknown. We used single-particle cryo–electron microscopy (cryo-EM) to determine the structures of human GPR158 alone and bound to an RGS signaling complex. The structures reveal a homodimeric organization stabilized by a pair of phospholipids and the presence of an extracellular Cache domain, an unusual ligand-binding domain in GPCRs. We further demonstrate the structural basis of GPR158 coupling to RGS7-Gβ5. Together, these results provide insights into the unusual biology of orphan receptors and the formation of GPCR-RGS complexes.
History
DepositionOct 8, 2021-
Header (metadata) releaseDec 1, 2021-
Map releaseDec 1, 2021-
UpdateJan 19, 2022-
Current statusJan 19, 2022Processing site: RCSB / Status: Released

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Structure visualization

Movie
  • Surface view with section colored by density value
  • Surface level: 0.593
  • Imaged by UCSF Chimera
  • Download
  • Surface view colored by cylindrical radius
  • Surface level: 0.593
  • Imaged by UCSF Chimera
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  • Surface view with fitted model
  • Atomic models: PDB-7she
  • Surface level: 0.593
  • Imaged by UCSF Chimera
  • Download
Movie viewer
Structure viewerEM map:
SurfViewMolmilJmol/JSmol
Supplemental images

emd_25125.png

Downloads & links

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Map

FileDownload / File: emd_25125.map.gz / Format: CCP4 / Size: 244.1 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)
Voxel sizeX=Y=Z: 0.873 Å
Density
Contour LevelBy AUTHOR: 0.593 / Movie #1: 0.593
Minimum - Maximum-1.445196 - 5.0343523
Average (Standard dev.)0.020866966 (±0.07215074)
SymmetrySpace group: 1
Details

EMDB XML:

Map geometry
Axis orderXYZ
Origin000
Dimensions400400400
Spacing400400400
CellA=B=C: 349.2 Å
α=β=γ: 90.0 °

CCP4 map header:

modeImage stored as Reals
Å/pix. X/Y/Z0.8730.8730.873
M x/y/z400400400
origin x/y/z0.0000.0000.000
length x/y/z349.200349.200349.200
α/β/γ90.00090.00090.000
start NX/NY/NZ-140-140-140
NX/NY/NZ280280280
MAP C/R/S123
start NC/NR/NS000
NC/NR/NS400400400
D min/max/mean-1.4455.0340.021

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Supplemental data

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Sample components

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Entire : Receptor

EntireName: Receptor
Components
  • Complex: Receptor
    • Protein or peptide: G-protein coupled receptor 158
  • Ligand: 1,2-dioleoyl-sn-glycero-3-phosphoethanolamine
  • Ligand: (2S)-1-{[(S)-hydroxy{[(1s,2R,3R,4R,5S,6S)-2,3,4,5,6-pentahydroxycyclohexyl]oxy}phosphoryl]oxy}-3-(octadecanoyloxy)propan-2-yl (5E,8E,11E,14E)-icosa-5,8,11,14-tetraenoate
  • Ligand: CHOLESTEROL

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Supramolecule #1: Receptor

SupramoleculeName: Receptor / type: complex / ID: 1 / Parent: 0 / Macromolecule list: #1
Source (natural)Organism: Homo sapiens (human)
Recombinant expressionOrganism: Homo sapiens (human)
Molecular weightTheoretical: 170 KDa

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Macromolecule #1: G-protein coupled receptor 158

MacromoleculeName: G-protein coupled receptor 158 / type: protein_or_peptide / ID: 1 / Number of copies: 2 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 88.251633 KDa
Recombinant expressionOrganism: Homo sapiens (human)
SequenceString: MGAMAYPLLL CLLLAQLGLG AVGASRDPQG RPDSPRERTP KGKPHAQQPG RASASDSSAP WSRSTDGTIL AQKLAEEVPM DVASYLYTG DSHQLKRANC SGRYELAGLP GKWPALASAH PSLHRALDTL THATNFLNVM LQSNKSREQN LQDDLDWYQA L VWSLLEGE ...String:
MGAMAYPLLL CLLLAQLGLG AVGASRDPQG RPDSPRERTP KGKPHAQQPG RASASDSSAP WSRSTDGTIL AQKLAEEVPM DVASYLYTG DSHQLKRANC SGRYELAGLP GKWPALASAH PSLHRALDTL THATNFLNVM LQSNKSREQN LQDDLDWYQA L VWSLLEGE PSISRAAITF STDSLSAPAP QVFLQATREE SRILLQDLSS SAPHLANATL ETEWFHGLRR KWRPHLHRRG PN QGPRGLG HSWRRKDGLG GDKSHFKWSP PYLECENGSY KPGWLVTLSS AIYGLQPNLV PEFRGVMKVD INLQKVDIDQ CSS DGWFSG THKCHLNNSE CMPIKGLGFV LGAYECICKA GFYHPGVLPV NNFRRRGPDQ HISGSTKDVS EEAYVCLPCR EGCP FCADD SPCFVQEDKY LRLAIISFQA LCMLLDFVSM LVVYHFRKAK SIRASGLILL ETILFGSLLL YFPVVILYFE PSTFR CILL RWARLLGFAT VYGTVTLKLH RVLKVFLSRT AQRIPYMTGG RVMRMLAVIL LVVFWFLIGW TSSVCQNLEK QISLIG QGK TSDHLIFNMC LIDRWDYMTA VAEFLFLLWG VYLCYAVRTV PSAFHEPRYM AVAVHNELII SAIFHTIRFV LASRLQS DW MLMLYFAHTH LTVTVTIGLL LIPKFSHSSN NPRDDIATEA YEDELDMGRS GSYLNSSINS AWSEHSLDPE DIRDELKK L YAQLEIYKRK KMITNNPHLQ KKRCSKKGLG RSIMRRITEI PETVSRQCSK EDKELEVLFQ

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Macromolecule #2: 1,2-dioleoyl-sn-glycero-3-phosphoethanolamine

MacromoleculeName: 1,2-dioleoyl-sn-glycero-3-phosphoethanolamine / type: ligand / ID: 2 / Number of copies: 1 / Formula: PEE
Molecular weightTheoretical: 744.034 Da
Chemical component information

ChemComp-PEE:
1,2-dioleoyl-sn-glycero-3-phosphoethanolamine / DOPE, phospholipid*YM / Discrete optimized protein energy

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Macromolecule #3: (2S)-1-{[(S)-hydroxy{[(1s,2R,3R,4R,5S,6S)-2,3,4,5,6-pentahydroxyc...

MacromoleculeName: (2S)-1-{[(S)-hydroxy{[(1s,2R,3R,4R,5S,6S)-2,3,4,5,6-pentahydroxycyclohexyl]oxy}phosphoryl]oxy}-3-(octadecanoyloxy)propan-2-yl (5E,8E,11E,14E)-icosa-5,8,11,14-tetraenoate
type: ligand / ID: 3 / Number of copies: 1 / Formula: EIJ
Molecular weightTheoretical: 887.128 Da
Chemical component information

ChemComp-EIJ:
(2S)-1-{[(S)-hydroxy{[(1s,2R,3R,4R,5S,6S)-2,3,4,5,6-pentahydroxycyclohexyl]oxy}phosphoryl]oxy}-3-(octadecanoyloxy)propan-2-yl (5E,8E,11E,14E)-icosa-5,8,11,14-tetraenoate

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Macromolecule #4: CHOLESTEROL

MacromoleculeName: CHOLESTEROL / type: ligand / ID: 4 / Number of copies: 22 / Formula: CLR
Molecular weightTheoretical: 386.654 Da
Chemical component information

ChemComp-CLR:
CHOLESTEROL / Cholesterol

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Experimental details

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Structure determination

Methodcryo EM
Processingsingle particle reconstruction
Aggregation stateparticle

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Sample preparation

Concentration0.3 mg/mL
BufferpH: 8
VitrificationCryogen name: ETHANE / Chamber humidity: 100 % / Chamber temperature: 277 K / Instrument: FEI VITROBOT MARK IV

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Electron microscopy

MicroscopeTFS KRIOS
Electron beamAcceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN
Electron opticsIllumination mode: OTHER / Imaging mode: OTHER / Nominal defocus max: 2.5 µm / Nominal defocus min: 1.5 µm
Image recordingFilm or detector model: GATAN K3 (6k x 4k) / Average electron dose: 40.0 e/Å2
Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company

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Image processing

Particle selectionNumber selected: 4374550
Startup modelType of model: OTHER / Details: ab-initio model building
Initial angle assignmentType: MAXIMUM LIKELIHOOD
Final angle assignmentType: MAXIMUM LIKELIHOOD
Final reconstructionApplied symmetry - Point group: C1 (asymmetric) / Resolution.type: BY AUTHOR / Resolution: 3.4 Å / Resolution method: FSC 0.143 CUT-OFF / Software - Name: cryoSPARC (ver. 3.1) / Number images used: 263237

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Atomic model buiding 1

RefinementSpace: REAL / Protocol: AB INITIO MODEL
Output model

PDB-7she:
Cryo-EM structure of human GPR158

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