2WR6 | pdb_00002wr6

Structure of the complex of RBP4 with linoleic acid

• PDB DOI: https://doi.org/10.2210/pdb2WR6/pdb

• Classification: SIGNALING PROTEIN
• Organism(s): Homo sapiens
• Expression System: Spodoptera frugiperda
• Mutation(s): No 
• Membrane Protein: Yes  OPM


• Deposited: 2009-08-29 Released: 2010-09-15 
• Deposition Author(s): Huang, H.-J., Nanao, M., Stout, T., Rosen, J.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.80 Å
• R-Value Free: 
  0.227 (Depositor), 0.227 (DCC) 
• R-Value Work: 
  0.187 (Depositor), 0.190 (DCC) 
• R-Value Observed: 
  0.189 (Depositor) 

Starting Model: experimental

Literature

Identification of a Non-Retinoid Compound and Fatty Acids as Ligands for Retinol Binding Protein 4 and Their Implications in Diabetes

Huang, H.-J., Nanao, M., Stout, T., Rosen, J.

To be published.

Biological Assembly 1  

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

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

Macromolecule Content 

• Total Structure Weight: 20.43 kDa 
• Atom Count: 1,693 
• Modeled Residue Count: 174 
• Deposited Residue Count: 175 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
RETINOL-BINDING PROTEIN 4	A	175	Homo sapiens	Mutation(s): 0  Membrane Entity: Yes
UniProt & NIH Common Fund Data Resources
Find proteins for P02753 (Homo sapiens) Explore P02753  Go to UniProtKB:  P02753
PHAROS:  P02753 GTEx:  ENSG00000138207

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
ODT	C [auth A]	(11E,13E,15Z)-OCTADECA-11,13,15-TRIENOIC ACID C18 H30 O2 ZSXWVPXJLXTOQQ-ZRGCPWHVSA-N
CL	B [auth A]	CHLORIDE ION Cl VEXZGXHMUGYJMC-UHFFFAOYSA-M

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.80 Å
• R-Value Free:  0.227 (Depositor), 0.227 (DCC) 
• R-Value Work:  0.187 (Depositor), 0.190 (DCC) 
• R-Value Observed: 0.189 (Depositor) 

Space Group: H 3

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 102.558	α = 90
b = 102.558	β = 90
c = 73.355	γ = 120

Software Package:

Software Name	Purpose
REFMAC	refinement
XDS	data reduction
XSCALE	data scaling
PHASER	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 2010-09-15 
Deposition Author(s): Huang, H.-J., Nanao, M., Stout, T., Rosen, J.

Revision History  

• Version 1.0: 2010-09-15
  Type: Initial release
  
• Version 1.1: 2011-05-08
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Version format compliance
• Version 1.3: 2023-12-20
  Changes: Data collection, Database references, Derived calculations, Other, Refinement description
• Version 1.4: 2024-11-06
  Changes: Structure summary