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- PDB-9uyn: Cryo-EM structure of the G protein-coupled receptor 1 (GPR1) boun... -

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Basic information

Entry
Database: PDB / ID: 9uyn
TitleCryo-EM structure of the G protein-coupled receptor 1 (GPR1) bound to beta-arrestin 1 in ligand-free state
Components
  • Beta-arrestin-1
  • Chemerin-like receptor 2,Vasopressin V2 receptor
  • Nanobody 32
  • Single-chain fragment variable 30 (scFv30)
KeywordsMEMBRANE PROTEIN/IMMUNE SYSTEM / G protein-coupled receptor 1 / chemerin / beta-arrestin1 / signaling protein / MEMBRANE PROTEIN-IMMUNE SYSTEM complex
Function / homology
Function and homology information


adipokinetic hormone binding / adipokinetic hormone receptor activity / renal water retention / Defective AVP does not bind AVPR2 and causes neurohypophyseal diabetes insipidus (NDI) / Vasopressin-like receptors / regulation of systemic arterial blood pressure by vasopressin / vasopressin receptor activity / angiotensin receptor binding / hemostasis / TGFBR3 regulates TGF-beta signaling ...adipokinetic hormone binding / adipokinetic hormone receptor activity / renal water retention / Defective AVP does not bind AVPR2 and causes neurohypophyseal diabetes insipidus (NDI) / Vasopressin-like receptors / regulation of systemic arterial blood pressure by vasopressin / vasopressin receptor activity / angiotensin receptor binding / hemostasis / TGFBR3 regulates TGF-beta signaling / Activation of SMO / telencephalon development / negative regulation of interleukin-8 production / G protein-coupled receptor internalization / arrestin family protein binding / neuropeptide binding / Lysosome Vesicle Biogenesis / negative regulation of NF-kappaB transcription factor activity / positive regulation of cardiac muscle hypertrophy / stress fiber assembly / Golgi Associated Vesicle Biogenesis / positive regulation of vasoconstriction / positive regulation of Rho protein signal transduction / pseudopodium / positive regulation of systemic arterial blood pressure / negative regulation of interleukin-6 production / positive regulation of intracellular signal transduction / positive regulation of receptor internalization / endocytic vesicle / negative regulation of Notch signaling pathway / enzyme inhibitor activity / neuropeptide signaling pathway / activation of adenylate cyclase activity / cellular response to hormone stimulus / insulin-like growth factor receptor binding / clathrin-coated pit / response to cytokine / negative regulation of protein ubiquitination / GTPase activator activity / cytoplasmic vesicle membrane / Activated NOTCH1 Transmits Signal to the Nucleus / clathrin-coated endocytic vesicle membrane / Signaling by high-kinase activity BRAF mutants / G protein-coupled receptor binding / G protein-coupled receptor activity / MAP2K and MAPK activation / adenylate cyclase-modulating G protein-coupled receptor signaling pathway / positive regulation of protein phosphorylation / Signaling by RAF1 mutants / Signaling by moderate kinase activity BRAF mutants / Paradoxical activation of RAF signaling by kinase inactive BRAF / Signaling downstream of RAS mutants / endocytic vesicle membrane / Vasopressin regulates renal water homeostasis via Aquaporins / Signaling by BRAF and RAF1 fusions / Cargo recognition for clathrin-mediated endocytosis / glucose homeostasis / protein transport / Clathrin-mediated endocytosis / Thrombin signalling through proteinase activated receptors (PARs) / cytoplasmic vesicle / ubiquitin-dependent protein catabolic process / G alpha (s) signalling events / molecular adaptor activity / proteasome-mediated ubiquitin-dependent protein catabolic process / transcription coactivator activity / positive regulation of ERK1 and ERK2 cascade / neuron projection / endosome / Ub-specific processing proteases / protein ubiquitination / nuclear body / G protein-coupled receptor signaling pathway / Golgi membrane / negative regulation of cell population proliferation / lysosomal membrane / intracellular membrane-bounded organelle / positive regulation of cell population proliferation / ubiquitin protein ligase binding / positive regulation of gene expression / regulation of transcription by RNA polymerase II / chromatin / perinuclear region of cytoplasm / endoplasmic reticulum / Golgi apparatus / signal transduction / positive regulation of transcription by RNA polymerase II / nucleoplasm / nucleus / membrane / plasma membrane / cytoplasm / cytosol
Similarity search - Function
Chemerin-like receptor 2 / Vasopressin V2 receptor / Vasopressin receptor / Formyl peptide receptor-related / Arrestin, conserved site / Arrestins signature. / Arrestin / Arrestin, N-terminal / Arrestin-like, N-terminal / Arrestin C-terminal-like domain ...Chemerin-like receptor 2 / Vasopressin V2 receptor / Vasopressin receptor / Formyl peptide receptor-related / Arrestin, conserved site / Arrestins signature. / Arrestin / Arrestin, N-terminal / Arrestin-like, N-terminal / Arrestin C-terminal-like domain / Arrestin (or S-antigen), N-terminal domain / Arrestin (or S-antigen), C-terminal domain / Arrestin (or S-antigen), C-terminal domain / Arrestin-like, C-terminal / G-protein coupled receptors family 1 signature. / G protein-coupled receptor, rhodopsin-like / GPCR, rhodopsin-like, 7TM / G-protein coupled receptors family 1 profile. / 7 transmembrane receptor (rhodopsin family) / Immunoglobulin E-set
Similarity search - Domain/homology
PALMITOLEIC ACID / Vasopressin V2 receptor / Chemerin-like receptor 2 / Beta-arrestin-1
Similarity search - Component
Biological speciesHomo sapiens (human)
Escherichia phage EcSzw-2 (virus)
MethodELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 2.9 Å
AuthorsCai, H. / Lin, X. / Zhao, L. / He, M. / Yu, J. / Zhang, B. / Ma, Y. / Xie, C. / Shui, W. / Zhao, Q. ...Cai, H. / Lin, X. / Zhao, L. / He, M. / Yu, J. / Zhang, B. / Ma, Y. / Xie, C. / Shui, W. / Zhao, Q. / Zhu, Y. / Wu, B.
Funding support China, 2items
OrganizationGrant numberCountry
National Natural Science Foundation of China (NSFC)82121005 China
National Natural Science Foundation of China (NSFC)32401012 China
CitationJournal: Science / Year: 2025
Title: Noncanonical agonist-dependent and -independent arrestin recruitment of GPR1
Authors: Cai, H. / Lin, X. / Zhao, L. / He, M. / Yu, J. / Zhang, B. / Ma, Y. / Chang, X. / Tang, Y. / Luo, T. / Jiang, J. / Ma, M. / Song, W. / Ma, L. / Chu, X. / Yi, C. / Chen, K. / Han, S. / Xie, C. ...Authors: Cai, H. / Lin, X. / Zhao, L. / He, M. / Yu, J. / Zhang, B. / Ma, Y. / Chang, X. / Tang, Y. / Luo, T. / Jiang, J. / Ma, M. / Song, W. / Ma, L. / Chu, X. / Yi, C. / Chen, K. / Han, S. / Xie, C. / Shui, W. / Zhao, Q. / Zhu, Y. / Wu, B.
History
DepositionMay 15, 2025Deposition site: PDBJ / Processing site: PDBC
Revision 1.0Nov 19, 2025Provider: repository / Type: Initial release

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

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Assembly

Deposited unit
R: Chemerin-like receptor 2,Vasopressin V2 receptor
A: Beta-arrestin-1
B: Nanobody 32
C: Single-chain fragment variable 30 (scFv30)
hetero molecules


Theoretical massNumber of molelcules
Total (without water)129,7945
Polymers129,5404
Non-polymers2541
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 Chemerin-like receptor 2,Vasopressin V2 receptor / Chemerin chemokine-like receptor 2 / Chemokine-like receptor 2 / G-protein coupled receptor 1 / V2R ...Chemerin chemokine-like receptor 2 / Chemokine-like receptor 2 / G-protein coupled receptor 1 / V2R / AVPR V2 / Antidiuretic hormone receptor / Renal-type arginine vasopressin receptor


Mass: 48035.852 Da / Num. of mol.: 1 / Mutation: V143C
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: CMKLR2, GPR1, AVPR2, ADHR, DIR, DIR3, V2R / Production host: Spodoptera frugiperda (fall armyworm) / References: UniProt: P46091, UniProt: P30518
#2: Protein Beta-arrestin-1 / Arrestin beta-1 / Non-visual arrestin-2


Mass: 42107.105 Da / Num. of mol.: 1
Mutation: C59A/C125S/C140I/C150V/R169E/C242V/Y249C/C251V/C269S
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: ARRB1, ARR1 / Production host: Spodoptera frugiperda (fall armyworm) / References: UniProt: P49407
#3: Antibody Nanobody 32


Mass: 13238.716 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Escherichia phage EcSzw-2 (virus) / Production host: Escherichia coli BL21 (bacteria)
#4: Antibody Single-chain fragment variable 30 (scFv30)


Mass: 26157.861 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Production host: Spodoptera frugiperda (fall armyworm)
#5: Chemical ChemComp-PAM / PALMITOLEIC ACID


Mass: 254.408 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C16H30O2 / Feature type: SUBJECT OF INVESTIGATION
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: G protein-coupled receptor 1 in complex with beta-arrestin1
Type: COMPLEX / Entity ID: #1-#4 / Source: MULTIPLE SOURCES
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: SPOT SCAN
Electron lensMode: BRIGHT FIELD / Nominal defocus max: 1500 nm / Nominal defocus min: 800 nm
Image recordingElectron dose: 2.1875 e/Å2 / Film or detector model: GATAN K3 BIOQUANTUM (6k x 4k)

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Processing

EM softwareName: PHENIX / Version: 1.18.2_3874 / Category: model refinement
CTF correctionType: NONE
3D reconstructionResolution: 2.9 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 413367 / Symmetry type: POINT
RefinementStereochemistry target values: REAL-SPACE (WEIGHTED MAP SUM AT ATOM CENTERS)
Refine LS restraints
Refine-IDTypeDev idealNumber
ELECTRON MICROSCOPYf_bond_d0.0027692
ELECTRON MICROSCOPYf_angle_d0.47110493
ELECTRON MICROSCOPYf_dihedral_angle_d9.0691074
ELECTRON MICROSCOPYf_chiral_restr0.0391218
ELECTRON MICROSCOPYf_plane_restr0.0041295

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