8AEI

X-ray structure of Canis familiaris Odorant Binding Protein 2 bound to citronellal

• PDB DOI: https://doi.org/10.2210/pdb8AEI/pdb

• Classification: TRANSPORT PROTEIN
• Organism(s): Canis lupus familiaris
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2022-07-13 Released: 2023-08-16 
• Deposition Author(s): Schwartz, M., Briand, L.
• Funding Organization(s): Other private

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.74 Å
• R-Value Free: 0.219 
• R-Value Work: 0.190 
• R-Value Observed: 0.192 

Literature

Structure of dog odorant binding protein

Glaz, M., Schwartz, M., Briand, L.

To be published.

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A1 

Biological assembly 1 assigned by authors.

Biological Assembly Evidence: light scattering

Biological Assembly 2  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A1 

Biological assembly 2 assigned by authors.

Macromolecule Content

• Total Structure Weight: 40.31 kDa 
• Atom Count: 2,615 
• Modelled Residue Count: 303 
• Deposited Residue Count: 350 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Minor allergen Can f 2	A, B	175	Canis lupus familiaris	Mutation(s): 0
UniProt
Find proteins for O18874 (Canis lupus familiaris) Explore O18874  Go to UniProtKB:  O18874

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
ODM (Subject of Investigation/LOI)	C [auth A], E [auth B]	(3R)-3,7-dimethyloct-6-en-1-ol C10 H20 O QMVPMAAFGQKVCJ-SNVBAGLBSA-N
MG	D [auth A], F [auth B]	MAGNESIUM ION Mg JLVVSXFLKOJNIY-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.74 Å
• R-Value Free: 0.219 
• R-Value Work: 0.190 
• R-Value Observed: 0.192 
• Space Group: P 1 2₁ 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 51.562	α = 90
b = 48.685	β = 105.197
c = 67.102	γ = 90

Software Package:

Software Name	Purpose
PHENIX	refinement
Aimless	data scaling
MOLREP	phasing

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2023-08-16 
Deposition Author(s): Schwartz, M., Briand, L.

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Funding Organization	Location	Grant Number
Other private	France	--

Revision History  

• Version 1.0: 2023-08-16
  Type: Initial release