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- PDB-9ei5: Cryo-EM structure of Apo form of prostaglandin D2 receptor (DP1)-... -

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Basic information

Entry
Database: PDB / ID: 9ei5
TitleCryo-EM structure of Apo form of prostaglandin D2 receptor (DP1)-bRIL-Fab complex
Components
  • Prostaglandin D2 receptor,Soluble cytochrome b562
  • anti-BRIL Fab Heavy Chain
  • anti-BRIL Fab Light Chain
  • anti-Fab Nanobody synthetic construct
KeywordsMEMBRANE PROTEIN/Immune System / GPCR / cryo-EM / DP1 / Apo form / prostaglandin D2 receptor / prostanoid DP receptor / PGD receptor / PTGDR / DP1-bRIL chimera / MEMBRANE PROTEIN / MEMBRANE PROTEIN-Immune System complex
Function / homology
Function and homology information


prostaglandin J receptor activity / prostaglandin D receptor activity / Prostanoid ligand receptors / adenosine metabolic process / cellular response to prostaglandin D stimulus / male sex determination / sleep / mast cell degranulation / electron transport chain / positive regulation of cytosolic calcium ion concentration ...prostaglandin J receptor activity / prostaglandin D receptor activity / Prostanoid ligand receptors / adenosine metabolic process / cellular response to prostaglandin D stimulus / male sex determination / sleep / mast cell degranulation / electron transport chain / positive regulation of cytosolic calcium ion concentration / G alpha (s) signalling events / periplasmic space / electron transfer activity / G protein-coupled receptor signaling pathway / iron ion binding / inflammatory response / heme binding / membrane / plasma membrane
Similarity search - Function
Prostaglandin D receptor / Prostanoid receptor / Cytochrome b562 / Cytochrome b562 / Cytochrome c/b562 / G protein-coupled receptor, rhodopsin-like / GPCR, rhodopsin-like, 7TM / G-protein coupled receptors family 1 profile. / 7 transmembrane receptor (rhodopsin family)
Similarity search - Domain/homology
Soluble cytochrome b562 / Prostaglandin D2 receptor
Similarity search - Component
Biological speciesHomo sapiens (human)
synthetic construct (others)
MethodELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 2.84 Å
AuthorsDavoudinasab, B. / Cherezov, V. / Han, G.W.
Funding support United States, 1items
OrganizationGrant numberCountry
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)R35GM127086 United States
CitationJournal: To Be Published
Title: Structural insights into mechanism of activation and deactivation of prostaglandin receptors
Authors: Davoudinasab, B. / Han, G.W. / Cherezov, V.
History
DepositionNov 25, 2024Deposition site: RCSB / Processing site: RCSB
Revision 1.0Sep 3, 2025Provider: repository / Type: Initial release
Revision 1.0Sep 3, 2025Data content type: EM metadata / Data content type: EM metadata / Provider: repository / Type: Initial release
Revision 1.0Sep 3, 2025Data content type: FSC / Data content type: FSC / Provider: repository / Type: Initial release
Revision 1.0Sep 3, 2025Data content type: Half map / Part number: 1 / Data content type: Half map / Provider: repository / Type: Initial release
Revision 1.0Sep 3, 2025Data content type: Half map / Part number: 2 / Data content type: Half map / Provider: repository / Type: Initial release
Revision 1.0Sep 3, 2025Data content type: Image / Data content type: Image / Provider: repository / Type: Initial release
Revision 1.0Sep 3, 2025Data 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
A: Prostaglandin D2 receptor,Soluble cytochrome b562
H: anti-BRIL Fab Heavy Chain
K: anti-Fab Nanobody synthetic construct
L: anti-BRIL Fab Light Chain


Theoretical massNumber of molelcules
Total (without water)116,7544
Polymers116,7544
Non-polymers00
Water00
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 Prostaglandin D2 receptor,Soluble cytochrome b562 / PGD receptor / PGD2 receptor / Prostanoid DP receptor / Cytochrome b-562


Mass: 55687.906 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: PTGDR, cybC / Production host: Spodoptera frugiperda (fall armyworm) / References: UniProt: Q13258, UniProt: P0ABE7
#2: Antibody anti-BRIL Fab Heavy Chain


Mass: 24321.084 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) synthetic construct (others) / Production host: Escherichia coli (E. coli)
#3: Antibody anti-Fab Nanobody synthetic construct


Mass: 13390.644 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) synthetic construct (others) / Production host: Escherichia coli (E. coli)
#4: Antibody anti-BRIL Fab Light Chain


Mass: 23353.947 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) synthetic construct (others) / Production host: Escherichia coli (E. coli)
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: ONO2550289 bound to DP1bRIL-BAG2Fab-Nb complex / Type: COMPLEX / Entity ID: all / Source: RECOMBINANT
Molecular weightExperimental value: NO
Source (natural)Organism: Homo sapiens (human)
Source (recombinant)Organism: Spodoptera frugiperda (fall armyworm)
Buffer solutionpH: 7.5
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: Titan Krios / Image courtesy: FEI Company
MicroscopyModel: TFS KRIOS
Electron gunElectron source: FIELD EMISSION GUN / Accelerating voltage: 300 kV / Illumination mode: FLOOD BEAM
Electron lensMode: BRIGHT FIELD / Nominal defocus max: 2200 nm / Nominal defocus min: 800 nm
Image recordingElectron dose: 65 e/Å2 / Film or detector model: GATAN K3 (6k x 4k)

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Processing

EM softwareName: PHENIX / Category: model refinement
CTF correctionType: PHASE FLIPPING AND AMPLITUDE CORRECTION
3D reconstructionResolution: 2.84 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 530340 / Symmetry type: POINT
RefinementHighest resolution: 2.84 Å
Stereochemistry target values: REAL-SPACE (WEIGHTED MAP SUM AT ATOM CENTERS)
Refine LS restraints
Refine-IDTypeDev idealNumber
ELECTRON MICROSCOPYf_bond_d0.0077683
ELECTRON MICROSCOPYf_angle_d0.88510428
ELECTRON MICROSCOPYf_dihedral_angle_d5.2411058
ELECTRON MICROSCOPYf_chiral_restr0.0531177
ELECTRON MICROSCOPYf_plane_restr0.0071324

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