9LWC | pdb_00009lwc

Cryo-EM structure of epinephrine bound dopamine receptor 1 D1R-M74-miniGs-Gbeta1gamma2-Nb35 complex

• PDB DOI: https://doi.org/10.2210/pdb9LWC/pdb
• EM Map EMD-63440: EMDB EMDataResource

• Classification: MEMBRANE PROTEIN/IMMUNE SYSTEM
• Organism(s): Homo sapiens, Vicugna pacos
• Expression System: Homo sapiens, Trichoplusia ni, Escherichia coli
• Mutation(s): No 


• Deposited: 2025-02-14 Released: 2026-02-18 
• Deposition Author(s): Zhang, X., Gao, K., Liu, X.
• 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 dopamine bound mut-beta2-Adrenergic Receptor-miniGs-Nb35-scFv16 complex

Zhang, X., Gao, K., Liu, X.

To be published.

Biological Assembly 1  

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

Biological assembly 1 assigned by authors.

Macromolecule Content 

• Total Structure Weight: 129.36 kDa 
• Atom Count: 6,236 
• Modeled Residue Count: 863 
• Deposited Residue Count: 1,160 
• Unique protein chains: 5

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Guanine nucleotide-binding protein G(s) subunit alpha isoforms short	A	244	Homo sapiens	Mutation(s): 0
UniProt & NIH Common Fund Data Resources
Find proteins for A0A590UJY2 (Homo sapiens) Explore A0A590UJY2  Go to UniProtKB:  A0A590UJY2
GTEx:  ENSG00000087460

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1	B	303	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]	25	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
Nanobody 35	D [auth N]	134	Vicugna pacos	Mutation(s): 0

Entity ID: 5
Molecule	Chains	Sequence Length	Organism	Details	Image
D(1A) dopamine receptor D1R-M74	E [auth R]	454	Homo sapiens	Mutation(s): 0  Gene Names: DRD1
UniProt & NIH Common Fund Data Resources
Find proteins for P21728 (Homo sapiens) Explore P21728  Go to UniProtKB:  P21728
PHAROS:  P21728 GTEx:  ENSG00000184845

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
ALE (Subject of Investigation/LOI)	F [auth R]	L-EPINEPHRINE C9 H13 N O3 UCTWMZQNUQWSLP-VIFPVBQESA-N

Binding Affinity Annotations
ID	Source	Binding Affinity
ALE	BindingDB:  9LWC	Kd: 5.50e+4 (nM) from 1 assay(s)

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
RECONSTRUCTION	cryoSPARC

Structure Validation

Entry History 

& Funding Information

Deposition Data

• Released Date: 2026-02-18 
Deposition Author(s): Zhang, X., Gao, K., Liu, X.

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Funding Organization	Location	Grant Number
National Natural Science Foundation of China (NSFC)	China	81974236

Revision History  

• Version 1.0: 2026-02-18
  Type: Initial release