8Z3M | pdb_00008z3m

Cryo-EM structure of the hGPR4-Gq complex in pH6.5

• PDB DOI: https://doi.org/10.2210/pdb8Z3M/pdb
• EM Map EMD-39747: EMDB EMDataResource

• Classification: MEMBRANE PROTEIN/IMMUNE SYSTEM
• Organism(s): Homo sapiens, synthetic construct
• Expression System: Spodoptera frugiperda
• Mutation(s): No 


• Deposited: 2024-04-15 Released: 2025-04-23 
• Deposition Author(s): Zhong, Y.N., Guo, L.L., Yang, F., Sun, J.P.
• Funding Organization(s): National Natural Science Foundation of China (NSFC)

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Experimental Data Snapshot

• Method: ELECTRON MICROSCOPY
• Resolution: 2.90 Å
• Aggregation State: PARTICLE 
• Reconstruction Method: SINGLE PARTICLE 

Literature

Cryo-EM structure of the hGPR4-Gq complex in pH6.5

Zhong, Y.N., Guo, L.L., Yang, F., Sun, J.P.

To be published.

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Hetero 5-mer - A1B1C1D1E1 

Biological assembly 1 assigned by authors.

Biological Assembly Evidence: electron microscopy

Macromolecule Content 

• Total Structure Weight: 158.89 kDa 
• Atom Count: 8,395 
• Modeled Residue Count: 1,147 
• Deposited Residue Count: 1,424 
• Unique protein chains: 5

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Engineered G-alpha-q subunit	A	361	Homo sapiens	Mutation(s): 0

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
scFv16	D [auth S]	285	synthetic construct	Mutation(s): 0

Entity ID: 5
Molecule	Chains	Sequence Length	Organism	Details	Image
G-protein coupled receptor 4	E [auth R]	362	Homo sapiens	Mutation(s): 0  Gene Names: GPR4
UniProt & NIH Common Fund Data Resources
Find proteins for P46093 (Homo sapiens) Explore P46093  Go to UniProtKB:  P46093
PHAROS:  P46093 GTEx:  ENSG00000177464

Experimental Data & Validation

Experimental Data

• Method: ELECTRON MICROSCOPY
• Resolution: 2.90 Å
• Aggregation State: PARTICLE 
• Reconstruction Method: SINGLE PARTICLE 

EM Software:

Task	Software Package	Version
MODEL REFINEMENT	PHENIX	1.19.2_4158:

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2025-04-23 
Deposition Author(s): Zhong, Y.N., Guo, L.L., Yang, F., Sun, J.P.

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Funding Organization	Location	Grant Number
National Natural Science Foundation of China (NSFC)	China	81773704

Revision History  

• Version 1.0: 2025-04-23
  Type: Initial release