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- PDB-9uxo: Local refinement of maleic acid bound OXGR1 -

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Basic information

Entry
Database: PDB / ID: 9uxo
TitleLocal refinement of maleic acid bound OXGR1
Components2-oxoglutarate receptor 1
KeywordsSIGNALING PROTEIN / maleic acid / MA / 2-oxoglutarate receptor 1 / OXGR1 / cryo-EM / membrane protein
Function / homology
Function and homology information


Class A/1 (Rhodopsin-like receptors) / G protein-coupled receptor activity / signaling receptor activity / G alpha (i) signalling events / phospholipase C-activating G protein-coupled receptor signaling pathway / G protein-coupled receptor signaling pathway / innate immune response / membrane / plasma membrane
Similarity search - Function
7 transmembrane receptor (rhodopsin family) / G protein-coupled receptor, rhodopsin-like / GPCR, rhodopsin-like, 7TM / G-protein coupled receptors family 1 profile.
Similarity search - Domain/homology
MALEIC ACID / 2-oxoglutarate receptor 1
Similarity search - Component
Biological speciesHomo sapiens (human)
MethodELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 2.97 Å
AuthorsLiu, H. / Zhang, X. / Xu, H.E.
Funding support China, 1items
OrganizationGrant numberCountry
National Natural Science Foundation of China (NSFC) China
CitationJournal: To Be Published
Title: Local refinement of maleic acid bound OXGR1
Authors: Liu, H. / Zhang, X. / Xu, H.E.
History
DepositionMay 14, 2025Deposition site: PDBJ / Processing site: PDBC
Revision 1.0May 27, 2026Provider: repository / Type: Initial release
Revision 1.0May 27, 2026Data content type: EM metadata / Data content type: EM metadata / Provider: repository / Type: Initial release
Revision 1.0May 27, 2026Data content type: Half map / Part number: 1 / Data content type: Half map / Provider: repository / Type: Initial release
Revision 1.0May 27, 2026Data content type: Half map / Part number: 2 / Data content type: Half map / Provider: repository / Type: Initial release
Revision 1.0May 27, 2026Data content type: Image / Data content type: Image / Provider: repository / Type: Initial release
Revision 1.0May 27, 2026Data content type: Mask / Part number: 1 / Data content type: Mask / Provider: repository / Type: Initial release
Revision 1.0May 27, 2026Data content type: Primary map / Data content type: Primary map / Provider: repository / Type: Initial release

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

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Assembly

Deposited unit
R: 2-oxoglutarate receptor 1
hetero molecules


Theoretical massNumber of molelcules
Total (without water)38,4002
Polymers38,2841
Non-polymers1161
Water724
1


  • Idetical with deposited unit
  • defined by author&software
  • Evidence: electron microscopy, not applicable
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1

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Components

#1: Protein 2-oxoglutarate receptor 1 / Alpha-ketoglutarate receptor 1 / G-protein coupled receptor 80 / G-protein coupled receptor 99 / ...Alpha-ketoglutarate receptor 1 / G-protein coupled receptor 80 / G-protein coupled receptor 99 / P2Y purinoceptor 15 / P2Y15 / P2Y-like GPCR / P2Y-like nucleotide receptor


Mass: 38284.020 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: OXGR1, GPR80, GPR99, P2RY15, P2Y15 / Production host: Spodoptera frugiperda (fall armyworm) / References: UniProt: Q96P68
#2: Chemical ChemComp-MAE / MALEIC ACID


Mass: 116.072 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C4H4O4 / Feature type: SUBJECT OF INVESTIGATION
#3: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 4 / Source method: isolated from a natural source / Formula: H2O
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

ComponentName: maleic acid bound OXGR1 / Type: COMPLEX / Entity ID: #1 / Source: RECOMBINANT
Source (natural)Organism: Homo sapiens (human)
Source (recombinant)Organism: Spodoptera frugiperda (fall armyworm)
Buffer solutionpH: 7.4
SpecimenEmbedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES
VitrificationCryogen name: ETHANE

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Electron microscopy imaging

Experimental equipment
Model: Talos Arctica / Image courtesy: FEI Company
MicroscopyModel: FEI TALOS ARCTICA
Electron gunElectron source: FIELD EMISSION GUN / Accelerating voltage: 300 kV / Illumination mode: FLOOD BEAM
Electron lensMode: DARK FIELD / Nominal defocus max: 2000 nm / Nominal defocus min: 1000 nm
Image recordingElectron dose: 50 e/Å2 / Film or detector model: GATAN K3 (6k x 4k)

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Processing

EM softwareName: PHENIX / Version: 1.20.1_4487 / Category: model refinement
CTF correctionType: NONE
3D reconstructionResolution: 2.97 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 436647 / Symmetry type: POINT
RefinementHighest resolution: 2.97 Å
Stereochemistry target values: REAL-SPACE (WEIGHTED MAP SUM AT ATOM CENTERS)
Refine LS restraints
Refine-IDTypeDev idealNumber
ELECTRON MICROSCOPYf_bond_d0.0032411
ELECTRON MICROSCOPYf_angle_d0.5323287
ELECTRON MICROSCOPYf_dihedral_angle_d4.504318
ELECTRON MICROSCOPYf_chiral_restr0.037403
ELECTRON MICROSCOPYf_plane_restr0.004394

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