9JQX | pdb_00009jqx

CGP54626-bound-DGABAB

• PDB DOI: https://doi.org/10.2210/pdb9JQX/pdb
• EM Map EMD-61742: EMDB EMDataResource

• Classification: MEMBRANE PROTEIN
• Organism(s): Drosophila melanogaster
• Expression System: Homo sapiens
• Mutation(s): No 
• Membrane Protein: Yes  MemProtMD


• Deposited: 2024-09-28 Released: 2025-10-01 
• Deposition Author(s): shen, C.S., liu, J.F.
• Funding Organization(s): National Natural Science Foundation of China (NSFC)

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Experimental Data Snapshot

• Method: ELECTRON MICROSCOPY
• Resolution: 3.61 Å
• Aggregation State: 3D ARRAY 
• Reconstruction Method: SINGLE PARTICLE 

Literature

Structural basis of GABAB receptor activation during evolution

shen, C.S., liu, J.F.

To be published.

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Hetero 2-mer - A1B1 Pseudo Symmetry: Cyclic - C2  (Explore in 3D)
Pseudo Stoichiometry: Homo 2-mer - A2 

Biological assembly 1 assigned by authors.

Biological Assembly Evidence: electron microscopy

Macromolecule Content 

• Total Structure Weight: 167.68 kDa 
• Atom Count: 10,769 
• Modeled Residue Count: 1,356 
• Deposited Residue Count: 1,471 
• Unique protein chains: 2

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Metabotropic GABA-B receptor subtype 1	A	704	Drosophila melanogaster	Mutation(s): 0  Gene Names: GABA-B-R1, CG15274 Membrane Entity: Yes
UniProt
Find proteins for Q9BML7 (Drosophila melanogaster) Explore Q9BML7  Go to UniProtKB:  Q9BML7

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
Gamma-aminobutyric acid type B receptor subunit 2	B	767	Drosophila melanogaster	Mutation(s): 0  Gene Names: GABA-B-R2, CG6706 Membrane Entity: Yes
UniProt
Find proteins for Q9BML6 (Drosophila melanogaster) Explore Q9BML6  Go to UniProtKB:  Q9BML6

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
2BV (Subject of Investigation/LOI)	C [auth A]	(R)-(cyclohexylmethyl)[(2S)-3-{[(1S)-1-(3,4-dichlorophenyl)ethyl]amino}-2-hydroxypropyl]phosphinic acid C18 H28 Cl2 N O3 P JGGVBBYJRQOPPA-BBRMVZONSA-N

Experimental Data & Validation

Experimental Data

• Method: ELECTRON MICROSCOPY
• Resolution: 3.61 Å
• Aggregation State: 3D ARRAY 
• Reconstruction Method: SINGLE PARTICLE 

EM Software:

Task	Software Package	Version
RECONSTRUCTION	cryoSPARC	4.7.0

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2025-10-01 
Deposition Author(s): shen, C.S., liu, J.F.

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

Revision History  

• Version 1.0: 2025-10-01
  Type: Initial release