8ZX5

AM251-bound GPR55 in complex with G13

• PDB DOI: https://doi.org/10.2210/pdb8ZX5/pdb
• EM Map EMD-60538: EMDB EMDataResource

• Classification: MEMBRANE PROTEIN
• Organism(s): Homo sapiens
• Expression System: Spodoptera frugiperda
• Mutation(s): No 


• Deposited: 2024-06-13 Released: 2024-11-13 
• Deposition Author(s): He, Y., Xia, R.
• Funding Organization(s): National Natural Science Foundation of China (NSFC)

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Experimental Data Snapshot

• Method: ELECTRON MICROSCOPY
• Resolution: 3.03 Å
• Aggregation State: PARTICLE 
• Reconstruction Method: SINGLE PARTICLE 

Literature

Structural insight into GPR55 ligand recognition and G-protein coupling.

Xia, R., Yuan, Q., Wang, N., Hou, L., Abe, J., Song, J., Ito, Y., Xu, H.E., He, Y.

(2025) Cell Res 35: 76-79

• PubMed: 39482404 
• DOI: https://doi.org/10.1038/s41422-024-01044-w
• Primary Citation of Related Structures:  
  8ZX4, 8ZX5

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Organizational Affiliation: 

Laboratory of Receptor Structure and Signaling, HIT Center for Life Sciences, School of Life Science and Technology, Harbin Institute of Technology, Harbin, Heilongjiang, China.

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Hetero 4-mer - A1B1C1D1 

Biological assembly 1 assigned by authors.

Biological Assembly Evidence: electron microscopy

Macromolecule Content

• Total Structure Weight: 109.57 kDa 
• Atom Count: 6,106 
• Modelled Residue Count: 821 
• Deposited Residue Count: 965 
• Unique protein chains: 4

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
engineered miniGalpha 13	A	230	Homo sapiens	Mutation(s): 0
UniProt & NIH Common Fund Data Resources
Find proteins for Q14344 (Homo sapiens) Explore Q14344  Go to UniProtKB:  Q14344
PHAROS:  Q14344 GTEx:  ENSG00000120063

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1	B	345	Homo sapiens	Mutation(s): 0  Gene Names: GNB1
UniProt & NIH Common Fund Data Resources
Find proteins for P62873 (Homo sapiens) Explore P62873  Go to UniProtKB:  P62873
PHAROS:  P62873 GTEx:  ENSG00000078369

Entity ID: 3
Molecule	Chains	Sequence Length	Organism	Details	Image
Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2	C [auth G]	71	Homo sapiens	Mutation(s): 0  Gene Names: GNG2
UniProt & NIH Common Fund Data Resources
Find proteins for P59768 (Homo sapiens) Explore P59768  Go to UniProtKB:  P59768
PHAROS:  P59768 GTEx:  ENSG00000186469

Entity ID: 4
Molecule	Chains	Sequence Length	Organism	Details	Image
G-protein coupled receptor 55	D [auth R]	319	Homo sapiens	Mutation(s): 0  Gene Names: GPR55
UniProt & NIH Common Fund Data Resources
Find proteins for Q9Y2T6 (Homo sapiens) Explore Q9Y2T6  Go to UniProtKB:  Q9Y2T6
PHAROS:  Q9Y2T6 GTEx:  ENSG00000135898

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
A1D9D	E [auth R]	1-(2,4-dichlorophenyl)-5-(4-iodophenyl)-4-methyl-~{N}-piperidin-1-yl-pyrazole-3-carboxamide C22 H21 Cl2 I N4 O BUZAJRPLUGXRAB-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: ELECTRON MICROSCOPY
• Resolution: 3.03 Å
• Aggregation State: PARTICLE 
• Reconstruction Method: SINGLE PARTICLE 

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2024-11-13 
Deposition Author(s): He, Y., Xia, R.

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Funding Organization	Location	Grant Number
National Natural Science Foundation of China (NSFC)	China	32070048

Revision History  

• Version 1.0: 2024-11-13
  Type: Initial release
  
• Version 1.1: 2024-11-27
  Changes: Data collection
• Version 1.2: 2025-01-22
  Changes: Data collection, Database references