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- PDB-7vuh: Cryo-EM structure of a class A orphan GPCR -

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Basic information

Entry
Database: PDB / ID: 7vuh
TitleCryo-EM structure of a class A orphan GPCR
Components
  • (Guanine nucleotide-binding protein ...) x 2
  • Isoform Gnas-2 of Guanine nucleotide-binding protein G(s) subunit alpha isoforms short
  • Nanobody 35
  • chimera of Endo-1,4-beta-xylanase and Probable G-protein coupled receptor 139
KeywordsMEMBRANE PROTEIN / Orphan G protein coupled-receptor
Function / homology
Function and homology information


neuropeptide receptor activity / endo-1,4-beta-xylanase activity / endo-1,4-beta-xylanase / xylan catabolic process / Olfactory Signaling Pathway / Activation of the phototransduction cascade / G beta:gamma signalling through PLC beta / Presynaptic function of Kainate receptors / Thromboxane signalling through TP receptor / G protein-coupled acetylcholine receptor signaling pathway ...neuropeptide receptor activity / endo-1,4-beta-xylanase activity / endo-1,4-beta-xylanase / xylan catabolic process / Olfactory Signaling Pathway / Activation of the phototransduction cascade / G beta:gamma signalling through PLC beta / Presynaptic function of Kainate receptors / Thromboxane signalling through TP receptor / G protein-coupled acetylcholine receptor signaling pathway / Activation of G protein gated Potassium channels / Inhibition of voltage gated Ca2+ channels via Gbeta/gamma subunits / G-protein activation / Prostacyclin signalling through prostacyclin receptor / G beta:gamma signalling through CDC42 / Glucagon signaling in metabolic regulation / G beta:gamma signalling through BTK / Synthesis, secretion, and inactivation of Glucagon-like Peptide-1 (GLP-1) / ADP signalling through P2Y purinoceptor 12 / photoreceptor disc membrane / Sensory perception of sweet, bitter, and umami (glutamate) taste / Glucagon-type ligand receptors / Adrenaline,noradrenaline inhibits insulin secretion / Vasopressin regulates renal water homeostasis via Aquaporins / Glucagon-like Peptide-1 (GLP1) regulates insulin secretion / G alpha (z) signalling events / cellular response to catecholamine stimulus / ADP signalling through P2Y purinoceptor 1 / ADORA2B mediated anti-inflammatory cytokines production / G beta:gamma signalling through PI3Kgamma / adenylate cyclase-activating dopamine receptor signaling pathway / Cooperation of PDCL (PhLP1) and TRiC/CCT in G-protein beta folding / GPER1 signaling / Inactivation, recovery and regulation of the phototransduction cascade / cellular response to prostaglandin E stimulus / G-protein beta-subunit binding / heterotrimeric G-protein complex / G alpha (12/13) signalling events / sensory perception of taste / extracellular vesicle / signaling receptor complex adaptor activity / Thrombin signalling through proteinase activated receptors (PARs) / retina development in camera-type eye / GTPase binding / Ca2+ pathway / fibroblast proliferation / High laminar flow shear stress activates signaling by PIEZO1 and PECAM1:CDH5:KDR in endothelial cells / G alpha (i) signalling events / G alpha (s) signalling events / phospholipase C-activating G protein-coupled receptor signaling pathway / G alpha (q) signalling events / Hydrolases; Acting on acid anhydrides; Acting on GTP to facilitate cellular and subcellular movement / Ras protein signal transduction / Extra-nuclear estrogen signaling / cell population proliferation / G protein-coupled receptor signaling pathway / lysosomal membrane / GTPase activity / synapse / protein-containing complex binding / signal transduction / extracellular exosome / identical protein binding / membrane / plasma membrane / cytoplasm / cytosol
Similarity search - Function
G-protein-coupled receptor GPR139 / : / Glycoside hydrolase family 11, active site 2 / Glycosyl hydrolases family 11 (GH11) active site signature 2. / Glycoside hydrolase family 11, active site 1 / Glycosyl hydrolases family 11 (GH11) active site signature 1. / Glycoside hydrolase family 11 / Glycosyl hydrolases family 11 (GH11) domain / Glycosyl hydrolases family 11 / Glycosyl hydrolases family 11 (GH11) domain profile. ...G-protein-coupled receptor GPR139 / : / Glycoside hydrolase family 11, active site 2 / Glycosyl hydrolases family 11 (GH11) active site signature 2. / Glycoside hydrolase family 11, active site 1 / Glycosyl hydrolases family 11 (GH11) active site signature 1. / Glycoside hydrolase family 11 / Glycosyl hydrolases family 11 (GH11) domain / Glycosyl hydrolases family 11 / Glycosyl hydrolases family 11 (GH11) domain profile. / Glycoside hydrolase family 11/12 / YVTN repeat-like/Quinoprotein amine dehydrogenase / 7 Propeller / Methylamine Dehydrogenase; Chain H / G-protein, gamma subunit / G-protein gamma subunit domain profile. / G-protein gamma-like domain / G-protein gamma-like domain superfamily / GGL domain / G protein gamma subunit-like motifs / GGL domain / G protein beta WD-40 repeat protein / Guanine nucleotide-binding protein, beta subunit / G-protein, beta subunit / G protein-coupled receptor, rhodopsin-like / GPCR, rhodopsin-like, 7TM / G-protein coupled receptors family 1 profile. / 7 transmembrane receptor (rhodopsin family) / Concanavalin A-like lectin/glucanase domain superfamily / G-protein beta WD-40 repeat / P-loop containing nucleotide triphosphate hydrolases / WD40 repeat, conserved site / Trp-Asp (WD) repeats signature. / Trp-Asp (WD) repeats profile. / Trp-Asp (WD) repeats circular profile. / WD40 repeats / WD40 repeat / WD40-repeat-containing domain superfamily / WD40/YVTN repeat-like-containing domain superfamily / Rossmann fold / 3-Layer(aba) Sandwich / Mainly Beta / Alpha Beta
Similarity search - Domain/homology
Chem-7ZQ / Endo-1,4-beta-xylanase / Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2 / Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1 / Isoform Gnas-2 of Guanine nucleotide-binding protein G(s) subunit alpha isoforms short / Probable G-protein coupled receptor 139
Similarity search - Component
Biological speciesHomo sapiens (human)
Bacillus circulans (bacteria)
MethodELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.22 Å
AuthorsLiu, Z.J. / Hua, T. / Zhou, Y.L. / Wu, L.J.
Funding support China, 1items
OrganizationGrant numberCountry
National Natural Science Foundation of China (NSFC) China
CitationJournal: Cell Res / Year: 2022
Title: Molecular insights into ligand recognition and G protein coupling of the neuromodulatory orphan receptor GPR139.
Authors: Yali Zhou / Henrik Daver / Boris Trapkov / Lijie Wu / Meng Wu / Kasper Harpsøe / Patrick R Gentry / Kaiwen Liu / Marina Larionova / Junlin Liu / Na Chen / Hans Bräuner-Osborne / David E ...Authors: Yali Zhou / Henrik Daver / Boris Trapkov / Lijie Wu / Meng Wu / Kasper Harpsøe / Patrick R Gentry / Kaiwen Liu / Marina Larionova / Junlin Liu / Na Chen / Hans Bräuner-Osborne / David E Gloriam / Tian Hua / Zhi-Jie Liu /
History
DepositionNov 2, 2021Deposition site: PDBJ / Processing site: PDBJ
Revision 1.0Dec 29, 2021Provider: repository / Type: Initial release
Revision 1.0Dec 29, 2021Data content type: EM metadata / Data content type: EM metadata / Provider: repository / Type: Initial release
Revision 1.0Dec 29, 2021Data content type: Image / Data content type: Image / Provider: repository / Type: Initial release
Revision 1.0Dec 29, 2021Data content type: Primary map / Data content type: Primary map / Provider: repository / Type: Initial release
Revision 1.0Dec 29, 2021Data content type: Image / Data content type: Image / Provider: repository / Type: Initial release
Revision 1.0Dec 29, 2021Data content type: Primary map / Data content type: Primary map / Provider: repository / Type: Initial release
Revision 1.0Dec 29, 2021Data content type: Image / Data content type: Image / Provider: repository / Type: Initial release
Revision 1.0Dec 29, 2021Data content type: Primary map / Data content type: Primary map / Provider: repository / Type: Initial release
Revision 1.1Feb 16, 2022Group: Database references / Category: citation / citation_author
Item: _citation.journal_volume / _citation.page_first ..._citation.journal_volume / _citation.page_first / _citation.page_last / _citation.year / _citation_author.identifier_ORCID
Revision 1.2Oct 23, 2024Group: Data collection / Structure summary
Category: chem_comp_atom / chem_comp_bond ...chem_comp_atom / chem_comp_bond / em_admin / pdbx_entry_details / pdbx_modification_feature
Item: _em_admin.last_update / _pdbx_entry_details.has_protein_modification
Revision 1.3Jun 18, 2025Group: Data collection / Category: em_admin / em_software / Item: _em_admin.last_update / _em_software.name
Revision 1.1Jun 18, 2025Data content type: EM metadata / Data content type: EM metadata / EM metadata / Group: Data processing / Experimental summary / Data content type: EM metadata / EM metadata / Category: em_admin / em_software / Data content type: EM metadata / EM metadata / Item: _em_admin.last_update / _em_software.name

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Structure visualization

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  • Deposited structure unit
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Assembly

Deposited unit
A: Isoform Gnas-2 of Guanine nucleotide-binding protein G(s) subunit alpha isoforms short
B: Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1
G: Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2
N: Nanobody 35
R: chimera of Endo-1,4-beta-xylanase and Probable G-protein coupled receptor 139
hetero molecules


Theoretical massNumber of molelcules
Total (without water)154,6356
Polymers154,3185
Non-polymers3171
Water00
1


  • Idetical with deposited unit
  • defined by author
  • Evidence: gel filtration
TypeNameSymmetry operationNumber
identity operation1_5551
Buried area12290 Å2
ΔGint-73 kcal/mol
Surface area45210 Å2

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Components

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Protein , 2 types, 2 molecules AR

#1: Protein Isoform Gnas-2 of Guanine nucleotide-binding protein G(s) subunit alpha isoforms short / Adenylate cyclase-stimulating G alpha protein


Mass: 30464.314 Da / Num. of mol.: 1 / Mutation: G49D, E50N, A249D, S252D
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: GNAS, GNAS1, GSP / Production host: Escherichia coli (E. coli) / References: UniProt: P63092-2
#5: Protein chimera of Endo-1,4-beta-xylanase and Probable G-protein coupled receptor 139 / Xylanase / 1 / 4-beta-D-xylan xylanohydrolase / G(q)-coupled orphan receptor GPRg1 / G-protein- ...Xylanase / 1 / 4-beta-D-xylan xylanohydrolase / G(q)-coupled orphan receptor GPRg1 / G-protein-coupled receptor PGR3


Mass: 60890.133 Da / Num. of mol.: 1 / Mutation: D39F, R150D, S62V
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Bacillus circulans (bacteria), (gene. exp.) Homo sapiens (human)
Gene: xlnA, GPR139, GPRG1, PGR3 / Production host: Spodoptera frugiperda (fall armyworm)
References: UniProt: P09850, UniProt: Q6DWJ6, endo-1,4-beta-xylanase

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Guanine nucleotide-binding protein ... , 2 types, 2 molecules BG

#2: Protein Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1 / Transducin beta chain 1


Mass: 38045.629 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: GNB1 / Production host: Spodoptera frugiperda (fall armyworm) / References: UniProt: P62873
#3: Protein Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2 / G gamma-I


Mass: 7861.143 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: GNG2 / Production host: Spodoptera frugiperda (fall armyworm) / References: UniProt: P59768

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Antibody / Non-polymers , 2 types, 2 molecules N

#4: Antibody Nanobody 35


Mass: 17057.271 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Production host: Escherichia coli (E. coli)
#6: Chemical ChemComp-7ZQ / 3-chloranyl-N-[2-oxidanylidene-2-[[(1S)-1-phenylethyl]amino]ethyl]benzamide


Mass: 316.782 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C17H17ClN2O2 / Feature type: SUBJECT OF INVESTIGATION

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Details

Has ligand of interestY
Has protein modificationY

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Experimental details

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Experiment

ExperimentMethod: ELECTRON MICROSCOPY
EM experimentAggregation state: PARTICLE / 3D reconstruction method: single particle reconstruction

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Sample preparation

Component
IDNameTypeEntity IDParent-IDSource
1Ternary complex of ligand, GPCR and G proteinCOMPLEX#1-#50RECOMBINANT
2Isoform Gnas-2 of Guanine nucleotide-binding protein G(s) subunit alpha isoforms shortCOMPLEX#11RECOMBINANT
3Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1COMPLEX#21RECOMBINANT
4Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2COMPLEX#31RECOMBINANT
5Nanobody 35COMPLEX#41RECOMBINANT
6Endo-1,4-beta-xylanase,Probable G-protein coupled receptor 139COMPLEX#51RECOMBINANT
Molecular weightValue: 0.15 MDa / Experimental value: YES
Source (natural)
IDEntity assembly-IDOrganismNcbi tax-ID
21Homo sapiens (human)9606
31Homo sapiens (human)9606
42Homo sapiens (human)9606
53Homo sapiens (human)9606
64Homo sapiens (human)9606
75Bacillus circulans (bacteria)1397
85Homo sapiens (human)9606
Source (recombinant)
IDEntity assembly-IDOrganismNcbi tax-ID
21Escherichia coli (E. coli)562
31Escherichia coli (E. coli)562
42Spodoptera frugiperda (fall armyworm)7108
53Spodoptera frugiperda (fall armyworm)7108
64Escherichia coli (E. coli)562
75Spodoptera frugiperda (fall armyworm)7108
85Spodoptera frugiperda (fall armyworm)7108
Buffer solutionpH: 7.5
SpecimenConc.: 4 mg/ml / Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES
Specimen supportGrid material: GOLD / Grid mesh size: 300 divisions/in. / Grid type: Homemade
VitrificationInstrument: 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
MicroscopyModel: FEI TITAN KRIOS
Electron gunElectron source: FIELD EMISSION GUN / Accelerating voltage: 300 kV / Illumination mode: FLOOD BEAM
Electron lensMode: BRIGHT FIELD / Nominal magnification: 130000 X / Calibrated magnification: 130000 X / Nominal defocus max: 2000 nm / Nominal defocus min: 1000 nm / Calibrated defocus min: 1000 nm / Calibrated defocus max: 2000 nm / Cs: 2.7 mm / C2 aperture diameter: 50 µm / Alignment procedure: BASIC
Specimen holderCryogen: NITROGEN / Specimen holder model: FEI TITAN KRIOS AUTOGRID HOLDER
Image recordingAverage exposure time: 8 sec. / Electron dose: 8 e/Å2 / Detector mode: SUPER-RESOLUTION / Film or detector model: GATAN K2 SUMMIT (4k x 4k) / Num. of real images: 7483
EM imaging opticsEnergyfilter slit width: 20 eV
Image scansWidth: 7420 / Height: 7676 / Movie frames/image: 40

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Processing

SoftwareName: PHENIX / Version: 1.19.2_4158: / Classification: refinement
EM software
IDNameVersionCategory
2SerialEMimage acquisition
4cryoSPARC3.2CTF correction
8PHENIXmodel refinement
CTF correctionDetails: Patch CTF refinement / Type: PHASE FLIPPING AND AMPLITUDE CORRECTION
Particle selectionNum. of particles selected: 6082524
3D reconstructionResolution: 3.22 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 110337 / Symmetry type: POINT
Refine LS restraints
Refine-IDTypeDev idealNumber
ELECTRON MICROSCOPYf_bond_d0.0038482
ELECTRON MICROSCOPYf_angle_d0.59611502
ELECTRON MICROSCOPYf_dihedral_angle_d4.7111145
ELECTRON MICROSCOPYf_chiral_restr0.0441298
ELECTRON MICROSCOPYf_plane_restr0.0041460

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