8Z9O | pdb_00008z9o

Cryo-EM structure of human GPR4-Gs complex

• PDB DOI: https://doi.org/10.2210/pdb8Z9O/pdb
• EM Map EMD-39865: EMDB EMDataResource

• Classification: MEMBRANE PROTEIN/IMMUNE SYSTEM
• Organism(s): Rattus norvegicus, Homo sapiens, Bos taurus, synthetic construct
• Expression System: Trichoplusia ni, Escherichia coli, Homo sapiens
• Mutation(s): Yes 


• Deposited: 2024-04-23 Released: 2025-07-16 
• Deposition Author(s): Chen, L.N., Mao, C.Y., Cheng, S.Z., Liu, Y.F., Fu, Y.F., Ma, X.Y., Xu, P., Ji, S.Y., Wang, W.W., Shen, D.D., Zhang, H.B., Shen, Q.Y., Chai, R., Zhang, M., Yang, L., Han, F., Mao, C.Y., Cai, X.J., Zhang, Y.
• Funding Organization(s): Not funded

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Experimental Data Snapshot

• Method: ELECTRON MICROSCOPY
• Resolution: 2.40 Å
• Aggregation State: PARTICLE 
• Reconstruction Method: SINGLE PARTICLE 

Literature

Cryo-EM structure of human GPR4-Gs complex

Chen, L.N., Zhou, H., Xi, K.

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: 135.84 kDa 
• Atom Count: 8,279 
• Modeled Residue Count: 1,044 
• Deposited Residue Count: 1,194 
• Unique protein chains: 5

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1	A [auth B]	338	Rattus norvegicus	Mutation(s): 0  Gene Names: Gnb1
UniProt
Find proteins for P54311 (Rattus norvegicus) Explore P54311  Go to UniProtKB:  P54311

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
Isoform Gnas-2 of Guanine nucleotide-binding protein G(s) subunit alpha isoforms short	B [auth C]	370	Homo sapiens	Mutation(s): 7  Gene Names: GNAS, GNAS1, GSP EC: 3.6.5
UniProt & NIH Common Fund Data Resources
Find proteins for P63092 (Homo sapiens) Explore P63092  Go to UniProtKB:  P63092
PHAROS:  P63092 GTEx:  ENSG00000087460

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]	57	Bos taurus	Mutation(s): 0  Gene Names: GNG2
UniProt
Find proteins for P63212 (Bos taurus) Explore P63212  Go to UniProtKB:  P63212

Entity ID: 4
Molecule	Chains	Sequence Length	Organism	Details	Image
Nanobody-35	D [auth N]	126	synthetic construct	Mutation(s): 0

Entity ID: 5
Molecule	Chains	Sequence Length	Organism	Details	Image
G-protein coupled receptor 4	E [auth R]	303	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

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
CLR	F [auth R], G [auth R]	CHOLESTEROL C27 H46 O HVYWMOMLDIMFJA-DPAQBDIFSA-N

Experimental Data & Validation

Experimental Data

• Method: ELECTRON MICROSCOPY
• Resolution: 2.40 Å
• Aggregation State: PARTICLE 
• Reconstruction Method: SINGLE PARTICLE 

EM Software:

Task	Software Package	Version
MODEL REFINEMENT	PHENIX
RECONSTRUCTION	RELION

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2025-07-16 
Deposition Author(s): Chen, L.N., Mao, C.Y., Cheng, S.Z., Liu, Y.F., Fu, Y.F., Ma, X.Y., Xu, P., Ji, S.Y., Wang, W.W., Shen, D.D., Zhang, H.B., Shen, Q.Y., Chai, R., Zhang, M., Yang, L., Han, F., Mao, C.Y., Cai, X.J., Zhang, Y.

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Funding Organization	Location	Grant Number
Not funded		--

Revision History  

• Version 1.0: 2025-07-16
  Type: Initial release