9YCY | pdb_00009ycy

Neurotensin Receptor 1 (NTSR1) bound to Octotensin in complex with Gi3 in the Canonical Orientation

• PDB DOI: https://doi.org/10.2210/pdb9YCY/pdb
• EM Map EMD-72791: EMDB EMDataResource

• Classification: MEMBRANE PROTEIN
• Organism(s): Homo sapiens, Octopus vulgaris, Mus musculus
• Expression System: Spodoptera frugiperda, synthetic construct, Trichoplusia ni
• Mutation(s): Yes 


• Deposited: 2025-09-19 Released: 2026-09-23 
• Deposition Author(s): Robertson, M.J.
• Funding Organization(s): Cancer Prevention and Research Institute of Texas (CPRIT)

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Experimental Data Snapshot

• Method: ELECTRON MICROSCOPY
• Resolution: 2.20 Å
• Aggregation State: PARTICLE 
• Reconstruction Method: SINGLE PARTICLE 

Literature

Prey-specific toxins provide broad venom activity in cephalopods

Koch, L.T., Yeung, H.Y., Torres, J.P., Brandt, Z., Palomino, S., Ramiro, I.B.L., Acyatan, Z., Schumann, N., Vo, A.A., Chase, K., Engholm, E., Jensen, K.J., Hansen, L.H., Peterson, R.T., Robertson, M.J., Ptwardhan, A., Schjoldager, K.T., Safavi-Hemami, H.

To be published.

Biological Assembly 1  

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

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

Biological Assembly Evidence: electron microscopy

Macromolecule Content 

• Total Structure Weight: 164.95 kDa 
• Atom Count: 8,407 
• Modeled Residue Count: 1,150 
• Deposited Residue Count: 1,486 
• Unique protein chains: 6

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1	A [auth B]	344	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: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2	B [auth C]	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
Tachykinin-1	C [auth L]	13	Octopus vulgaris	Mutation(s): 0
UniProt
Find proteins for Q8I6S3 (Octopus vulgaris) Explore Q8I6S3  Go to UniProtKB:  Q8I6S3

Entity ID: 4
Molecule	Chains	Sequence Length	Organism	Details	Image
Neurotensin receptor type 1	D [auth R]	445	Homo sapiens	Mutation(s): 0  Gene Names: NTSR1, NTRR
UniProt & NIH Common Fund Data Resources
Find proteins for P30989 (Homo sapiens) Explore P30989  Go to UniProtKB:  P30989
PHAROS:  P30989 GTEx:  ENSG00000101188

Entity ID: 5
Molecule	Chains	Sequence Length	Organism	Details	Image
Guanine nucleotide-binding protein G(i) subunit alpha-3	E [auth A]	354	Homo sapiens	Mutation(s): 4  Gene Names: GNAI3
UniProt & NIH Common Fund Data Resources
Find proteins for P08754 (Homo sapiens) Explore P08754  Go to UniProtKB:  P08754
PHAROS:  P08754 GTEx:  ENSG00000065135

Entity ID: 6
Molecule	Chains	Sequence Length	Organism	Details	Image
scFv16	F [auth S]	259	Mus musculus	Mutation(s): 0

Experimental Data & Validation

Experimental Data

• Method: ELECTRON MICROSCOPY
• Resolution: 2.20 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: 2026-09-23 
Deposition Author(s): Robertson, M.J.

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Funding Organization	Location	Grant Number
Cancer Prevention and Research Institute of Texas (CPRIT)	United States	--

Revision History  

• Version 1.0: 2026-09-23
  Type: Initial release