8Y51 | pdb_00008y51

Cryo-EM structure of the BRS3-Gq complex

• PDB DOI: https://doi.org/10.2210/pdb8Y51/pdb
• EM Map EMD-38927: EMDB EMDataResource

• Classification: MEMBRANE PROTEIN
• Organism(s): Homo sapiens, Mus musculus
• Expression System: Trichoplusia ni
• Mutation(s): No 
• Membrane Protein: Yes  PDBTM


• Deposited: 2024-01-31 Released: 2025-02-12 
• Deposition Author(s): Li, C., Xu, Y., Yin, W., Xu, H.E.
• Funding Organization(s): National Natural Science Foundation of China (NSFC)

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Experimental Data Snapshot

• Method: ELECTRON MICROSCOPY
• Resolution: 3.30 Å
• Aggregation State: PARTICLE 
• Reconstruction Method: SINGLE PARTICLE 

Literature

Structural basis of self-activation and ligand recognition of human bombesin receptor subtype-3

Li, C., Xu, Y., Yin, W., Xu, H.E.

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: 158.23 kDa 
• Atom Count: 8,883 
• Modeled Residue Count: 1,130 
• Deposited Residue Count: 1,423 
• Unique protein chains: 5

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Guanine nucleotide-binding protein G(q) subunit alpha	A	361	Homo sapiens	Mutation(s): 0  EC: 3.6.5 Membrane Entity: Yes
UniProt & NIH Common Fund Data Resources
Find proteins for P50148 (Homo sapiens) Explore P50148  Go to UniProtKB:  P50148
PHAROS:  P50148 GTEx:  ENSG00000156052

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 Membrane Entity: Yes
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
Bombesin receptor subtype-3	D [auth R]	399	Homo sapiens	Mutation(s): 0  Gene Names: BRS3 Membrane Entity: Yes
UniProt & NIH Common Fund Data Resources
Find proteins for P32247 (Homo sapiens) Explore P32247  Go to UniProtKB:  P32247
PHAROS:  P32247 GTEx:  ENSG00000102239

Entity ID: 5
Molecule	Chains	Sequence Length	Organism	Details	Image
scFv16	E	247	Mus musculus	Mutation(s): 0

Experimental Data & Validation

Experimental Data

• Method: ELECTRON MICROSCOPY
• Resolution: 3.30 Å
• Aggregation State: PARTICLE 
• Reconstruction Method: SINGLE PARTICLE 

EM Software:

Task	Software Package	Version
MODEL REFINEMENT	PHENIX

Structure Validation

Entry History 

& Funding Information

Deposition Data

• Released Date: 2025-02-12 
Deposition Author(s): Li, C., Xu, Y., Yin, W., Xu, H.E.

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Funding Organization	Location	Grant Number
National Natural Science Foundation of China (NSFC)	China	81902085

Revision History  

• Version 1.0: 2025-02-12
  Type: Initial release
  
• Version 1.1: 2025-07-16
  Changes: Data collection