2WQA

Complex of TTR and RBP4 and Oleic Acid

• PDB DOI: https://doi.org/10.2210/pdb2WQA/pdb

• Classification: HYDROLASE/SIGNALING PROTEIN
• Organism(s): Homo sapiens
• Expression System: Escherichia coli, Trichoplusia ni
• Mutation(s): No 


• Deposited: 2009-08-14 Released: 2010-09-01 
• Deposition Author(s): Nanao, M., Mercer, D., Nguyen, L., Buckley, D., Stout, T.J.

---

Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.85 Å
• R-Value Free: 0.253 
• R-Value Work: 0.227 
• R-Value Observed: 0.228 

Literature

Crystal Structure of Rbp4 Bound to Linoleic Acid and Ttr

Nanao, M., Stout, T.J.

To be published.

Biological Assembly 1  

Global Symmetry: Cyclic - C2  (Explore in 3D)
Global Stoichiometry: Hetero 6-mer - A4B2 

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

Macromolecule Content

• Total Structure Weight: 97.87 kDa 
• Atom Count: 6,597 
• Modelled Residue Count: 821 
• Deposited Residue Count: 870 
• Unique protein chains: 2

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
TRANSTHYRETIN	A, B, C, D	129	Homo sapiens	Mutation(s): 0
UniProt & NIH Common Fund Data Resources
Find proteins for P02766 (Homo sapiens) Explore P02766  Go to UniProtKB:  P02766
PHAROS:  P02766 GTEx:  ENSG00000118271

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
RETINOL-BINDING PROTEIN 4	E, F	177	Homo sapiens	Mutation(s): 0
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
OLA	K [auth E], O [auth F]	OLEIC ACID C18 H34 O2 ZQPPMHVWECSIRJ-KTKRTIGZSA-N
SO4	G [auth A], H [auth A], I [auth C], J [auth C], L [auth E], M [auth E], N [auth E], P [auth F], Q [auth F], R [auth F], S [auth F]	SULFATE ION O4 S QAOWNCQODCNURD-UHFFFAOYSA-L

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.85 Å
• R-Value Free: 0.253 
• R-Value Work: 0.227 
• R-Value Observed: 0.228 
• Space Group: P 4₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 138.662	α = 90
b = 138.662	β = 90
c = 122.789	γ = 90

Software Package:

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

Structure Validation

Entry History 

Deposition Data

• Released Date: 2010-09-01 
Deposition Author(s): Nanao, M., Mercer, D., Nguyen, L., Buckley, D., Stout, T.J.

Revision History  

• Version 1.0: 2010-09-01
  Type: Initial release
  
• Version 1.1: 2011-06-02
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Version format compliance
• Version 1.3: 2019-04-03
  Changes: Data collection, Other, Source and taxonomy
• Version 1.4: 2023-12-20
  Changes: Data collection, Database references, Derived calculations, Other, Refinement description