3AKN | pdb_00003akn

X-ray structure of iFABP from human and rat with bound fluorescent fatty acid analogue

• PDB DOI: https://doi.org/10.2210/pdb3AKN/pdb

• Classification: TRANSPORT PROTEIN
• Organism(s): Rattus norvegicus
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2010-07-14 Released: 2011-07-20 
• Deposition Author(s): Wielens, J., Laguerre, A.J.K., Parker, M.W., Scanlon, M.J.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.60 Å
• R-Value Free: 
  0.257 (Depositor), 0.250 (DCC) 
• R-Value Work: 
  0.225 (Depositor), 0.220 (DCC) 
• R-Value Observed: 
  0.226 (Depositor) 

Starting Model: experimental

Literature

Crystal structures of human and rat intestinal fatty acid binding protein in complex with 11-(Dansylamino)undecanoic acid

Laguerre, A.J.K., Wielens, J., Parker, M.W., Porter, C.J., Scanlon, M.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: 15.45 kDa 
• Atom Count: 1,127 
• Modeled Residue Count: 130 
• Deposited Residue Count: 131 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Fatty acid-binding protein, intestinal	A	131	Rattus norvegicus	Mutation(s): 0  Gene Names: Fabp2, Fabpi
UniProt
Find proteins for P02693 (Rattus norvegicus) Explore P02693  Go to UniProtKB:  P02693

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
11D	B [auth A]	11-({[5-(dimethylamino)naphthalen-1-yl]sulfonyl}amino)undecanoic acid C23 H34 N2 O4 S CEPGVMDMVJGHFQ-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.60 Å
• R-Value Free:  0.257 (Depositor), 0.250 (DCC) 
• R-Value Work:  0.225 (Depositor), 0.220 (DCC) 
• R-Value Observed: 0.226 (Depositor) 

Space Group: P 4₃ 2₁ 2

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 50.59	α = 90
b = 50.59	β = 90
c = 97.452	γ = 90

Software Package:

Software Name	Purpose
Blu-Ice	data collection
AMoRE	phasing
REFMAC	refinement
MOSFLM	data reduction
SCALA	data scaling

Structure Validation

Entry History 

Deposition Data

• Released Date: 2011-07-20 
Deposition Author(s): Wielens, J., Laguerre, A.J.K., Parker, M.W., Scanlon, M.J.

Revision History  

• Version 1.0: 2011-07-20
  Type: Initial release
  
• Version 1.1: 2023-11-01
  Changes: Data collection, Database references, Derived calculations, Refinement description