9LKB | pdb_00009lkb

Cryo-EM structure of the receptor of PL45-Olfr110-Gs complex

• PDB DOI: https://doi.org/10.2210/pdb9LKB/pdb
• EM Map EMD-63174: EMDB EMDataResource

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


• Deposited: 2025-01-16 Released: 2026-01-21 
• Deposition Author(s): Rong, N.K., Zhang, M.H., 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: 3.70 Å
• Aggregation State: PARTICLE 
• Reconstruction Method: SINGLE PARTICLE 

Literature

Mechanistic insights into fatty acid odor detection mediated by class II olfactory receptors

Han, X., Zhang, M.H., Rong, N.K., Zhu, K.K., Pei, Y., Ge, X.Y., Liu, Q., Lu, H., Liu, J., Zhang, L.J., Bao, H.Q., Pi, J.H., Fan, L., Fu, Y., Shao, X.H., Yan, W.Q., Gao, X.H., Zhang, M.Y., Guo, L.L., Lu, Y., Ning, S.L., Zhang, H., Xu, Y.F., Feng, X.Y., Cheng, J., Xia, M., Li, Q., Yu, X., Yang, F., Sun, J.P.

(2026) Cell 

• DOI: https://doi.org/10.1016/j.cell.2025.12.018

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Hetero 3-mer - A1B1C1 

Biological assembly 1 assigned by authors and generated by (software)

Biological Assembly Evidence: electron microscopy

Macromolecule Content 

• Total Structure Weight: 115.41 kDa 
• Atom Count: 5,152 
• Modeled Residue Count: 762 
• Deposited Residue Count: 1,018 
• Unique protein chains: 3

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Guanine nucleotide-binding protein G(s) subunit alpha isoforms short	A [auth B]	361	synthetic construct	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 [auth C]	340	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
Olfactory receptor	C [auth R]	317	Mus musculus	Mutation(s): 0  Gene Names: Or5v1, Olfr110
UniProt
Find proteins for A2RT31 (Mus musculus) Explore A2RT31  Go to UniProtKB:  A2RT31

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
A1EKK (Subject of Investigation/LOI)	D [auth R]	methyl (9R,10E,12E)-9-methoxyoctadeca-10,12-dienoate C20 H36 O3 TTYSQURQVGCMHK-IOVFVLODSA-N

Experimental Data & Validation

Experimental Data

• Method: ELECTRON MICROSCOPY
• Resolution: 3.70 Å
• Aggregation State: PARTICLE 
• Reconstruction Method: SINGLE PARTICLE 

EM Software:

Task	Software Package	Version
MODEL REFINEMENT	PHENIX	1.18.2_3874
RECONSTRUCTION	cryoSPARC	4.1

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2026-01-21 
Deposition Author(s): Rong, N.K., Zhang, M.H., 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: 2026-01-21
  Type: Initial release
  
• Version 1.1: 2026-01-28
  Changes: Data collection, Database references