9W1J | pdb_00009w1j

Cryo-EM structure of neurokinin A (NKA)-bound neurokinin 2 receptor (NK2R) in complex with miniGs/q70

• PDB DOI: https://doi.org/10.2210/pdb9W1J/pdb
• EM Map EMD-65549: EMDB EMDataResource

• Classification: MEMBRANE PROTEIN
• Organism(s): Homo sapiens, Lama glama
• Expression System: Homo sapiens, Trichoplusia ni, Escherichia coli
• Mutation(s): No 


• Deposited: 2025-07-25 Released: 2026-06-17 
• Deposition Author(s): Ren, Y., Pavlovskyil, A., Liu, X., Gerhart-Hines, Z.
• Funding Organization(s): National Natural Science Foundation of China (NSFC)

---

Experimental Data Snapshot

• Method: ELECTRON MICROSCOPY
• Resolution: 2.97 Å
• Aggregation State: PARTICLE 
• Reconstruction Method: SINGLE PARTICLE 

Literature

Mechanistic basis for activation and selectivity of NK2R by endogenous and synthetic peptide agonists

Ren, Y., Pavlovskyil, A., Liu, X., Gerhart-Hines, Z.

To be published.

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Hetero 6-mer - A1B1C1D1E1F1 

Biological assembly 1 assigned by authors.

Biological Assembly Evidence: electron microscopy

Macromolecule Content 

• Total Structure Weight: 135.07 kDa 
• Atom Count: 7,368 
• Modeled Residue Count: 974 
• Deposited Residue Count: 1,209 
• Unique protein chains: 6

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Guanine nucleotide-binding protein G(s) subunit alpha isoforms short	A	229	Homo sapiens	Mutation(s): 0

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2	B [auth G]	71	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: 3
Molecule	Chains	Sequence Length	Organism	Details	Image
Protachykinin-1	C [auth L]	11	Homo sapiens	Mutation(s): 0
UniProt & NIH Common Fund Data Resources
Find proteins for P20366 (Homo sapiens) Explore P20366  Go to UniProtKB:  P20366
PHAROS:  P20366 GTEx:  ENSG00000006128

Entity ID: 4
Molecule	Chains	Sequence Length	Organism	Details	Image
Nanobody 35	D [auth N]	134	Lama glama	Mutation(s): 0

Entity ID: 5
Molecule	Chains	Sequence Length	Organism	Details	Image
Substance-K receptor	E [auth R]	406	Homo sapiens	Mutation(s): 0  Gene Names: TACR2, NK2R, NKNAR, TAC2R
UniProt & NIH Common Fund Data Resources
Find proteins for P21452 (Homo sapiens) Explore P21452  Go to UniProtKB:  P21452
PHAROS:  P21452 GTEx:  ENSG00000075073

Entity ID: 6
Molecule	Chains	Sequence Length	Organism	Details	Image
Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1	F [auth B]	358	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

Experimental Data & Validation

Experimental Data

• Method: ELECTRON MICROSCOPY
• Resolution: 2.97 Å
• Aggregation State: PARTICLE 
• Reconstruction Method: SINGLE PARTICLE 

EM Software:

Task	Software Package	Version
MODEL REFINEMENT	PHENIX	1.20.1_4487
RECONSTRUCTION	cryoSPARC

Structure Validation

Entry History 

& Funding Information

Deposition Data

• Released Date: 2026-06-17 
Deposition Author(s): Ren, Y., Pavlovskyil, A., Liu, X., Gerhart-Hines, Z.

---

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

Revision History  

• Version 1.0: 2026-06-17
  Type: Initial release