6PEL

Crystal structure of bovine opsin with citronellol bound

• PDB DOI: https://doi.org/10.2210/pdb6PEL/pdb

• Classification: SIGNALING PROTEIN
• Organism(s): Bos taurus
• Mutation(s): No 
• Membrane Protein: Yes  PDBTMMemProtMD


• Deposited: 2019-06-20 Released: 2020-06-24 
• Deposition Author(s): Eger, B.T., Morizumi, T., Ernst, O.P.
• Funding Organization(s): Canadian Institutes of Health Research (CIHR)

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 3.19 Å
• R-Value Free: 0.248 
• R-Value Work: 0.212 
• R-Value Observed: 0.214 

Starting Model: experimental

Literature

Odorant-binding site in visual opsin

Morizumi, T., Kuroi, K., Eger, B.T., Ou, W.L., Van Eps, N., Tsukamoto, H., Furutani, Y., Ernst, O.P.

To be published.

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Hetero 2-mer - A1B1 

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

Macromolecule Content

• Total Structure Weight: 41.75 kDa 
• Atom Count: 2,782 
• Modelled Residue Count: 336 
• Deposited Residue Count: 359 
• Unique protein chains: 2

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Rhodopsin	A	348	Bos taurus	Mutation(s): 0  Membrane Entity: Yes
UniProt
Find proteins for P02699 (Bos taurus) Explore P02699  Go to UniProtKB:  P02699
Glycosylation
Glycosylation Sites: 1

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
ILENLKDVGLF G alpha peptide CT2	B	11	Bos taurus	Mutation(s): 0

Oligosaccharides

Help

Entity ID: 3
Molecule	Chains	Length	2D Diagram	Glycosylation	3D Interactions
beta-D-mannopyranose-(1-3)-beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose	C	4		N-Glycosylation
Glycosylation Resources
GlyTouCan:  G31886NL GlyCosmos:  G31886NL GlyGen:  G31886NL

Small Molecules

Ligands 3 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
BOG	E [auth A]	octyl beta-D-glucopyranoside C14 H28 O6 HEGSGKPQLMEBJL-RKQHYHRCSA-N
PLM	F [auth A]	PALMITIC ACID C16 H32 O2 IPCSVZSSVZVIGE-UHFFFAOYSA-N
ODM (Subject of Investigation/LOI)	D [auth A]	(3R)-3,7-dimethyloct-6-en-1-ol C10 H20 O QMVPMAAFGQKVCJ-SNVBAGLBSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 3.19 Å
• R-Value Free: 0.248 
• R-Value Work: 0.212 
• R-Value Observed: 0.214 
• Space Group: H 3 2

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 243.412	α = 90
b = 243.412	β = 90
c = 108.44	γ = 120

Software Package:

Software Name	Purpose
PHENIX	refinement
XDS	data reduction
autoPROC	data scaling
PHASER	phasing

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2020-06-24 
Deposition Author(s): Eger, B.T., Morizumi, T., Ernst, O.P.

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Funding Organization	Location	Grant Number
Canadian Institutes of Health Research (CIHR)	Canada	Canada Research Excellence Chair

Revision History  

• Version 1.0: 2020-06-24
  Type: Initial release
  
• Version 2.0: 2020-07-29
  Type: Remediation
  Reason: Carbohydrate remediation
  Changes: Atomic model, Data collection, Derived calculations, Structure summary
• Version 2.1: 2023-10-11
  Changes: Data collection, Database references, Derived calculations, Refinement description, Structure summary
• Version 2.2: 2024-10-30
  Changes: Structure summary