Biological Assembly 1  

 3D View: Structure | Electron Density | Ligand Interaction

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Protein Workshop | Ligand Explorer

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

Biological assembly 1 assigned by authors.

Macromolecule Content

• Total Structure Weight: 14862.00 
• Atom Count: 1041 
• Residue Count: 131 
• Unique protein chains: 1

1TOW

Crystal structure of human adipocyte fatty acid binding protein in complex with a carboxylic acid ligand

• DOI: 10.2210/pdb1TOW/pdb

• Classification: LIPID TRANSPORT
• Organism(s): Homo sapiens
• Expression System: Escherichia coli


• Deposited: 2004-06-15 Released: 2004-08-24 
• Deposition Author(s): Lehmann, F., Haile, S., Axen, E., Medina, C., Uppenberg, J., Svensson, S., Lundback, T., Rondahl, L., Barf, T.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2 Å
• R-Value Free: 0.257 
• R-Value Work: 0.188 

Literature

Discovery of inhibitors of human adipocyte fatty acid-binding protein, a potential type 2 diabetes target.

Lehmann, F., Haile, S., Axen, E., Medina, C., Uppenberg, J., Svensson, S., Lundback, T., Rondahl, L., Barf, T.

(2004) Bioorg.Med.Chem.Lett. 14: 4445-4448

• PubMed: 15357969 
• DOI: 10.1016/j.bmcl.2004.06.057


• PubMed Abstract: 
  

Low micromolar human A-FABP inhibitors were found by utilizing a fluorescence polarization assay, X-ray crystallography and modeling. The carbazole- and indole-based inhibitors displayed approximately 10-fold preferences over human H-FABP and E-FABP, and are highly selective against I-FABP. This communication describes the SAR for drug-like synthetic inhibitors of human A-FABP.

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Organizational Affiliation: 

Department of Medicinal Chemistry, Biovitrum AB, SE-751 37 Uppsala, Sweden.

Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details
Fatty acid-binding protein, adipocyte	A	131	Homo sapiens	Mutation(s): 0  Gene Names: FABP4
Find proteins for P15090 (Homo sapiens) Go to Gene View: FABP4 Go to UniProtKB:  P15090

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram & Interactions
CRZ	A	4-(9H-CARBAZOL-9-YL)BUTANOIC ACID CARBAZOLE BUTANOIC ACID C16 H15 N O2 HQAKVYGASUTQHH-UHFFFAOYSA-N

External Ligand Annotations
ID	Binding Affinity (Sequence Identity %)
CRZ	IC50: 570 nM (100) BINDINGDB
CRZ	IC50: 570 nM BINDINGMOAD
CRZ	IC50: 570 nM PDBBIND

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2 Å
• R-Value Free: 0.257 
• R-Value Work: 0.188 
• Space Group: P 2₁ 2₁ 2

Unit Cell:

Length (Å)	Angle (°)
a = 72.050	α = 90.00
b = 53.045	β = 90.00
c = 31.782	γ = 90.00

Software Package:

Software Name	Purpose
SCALEPACK	data scaling
DENZO	data reduction
AMoRE	phasing
REFMAC	refinement

Structure Validation

Entry History 

Deposition Data

• Deposited Date: 2004-06-15 
• Released Date: 2004-08-24 
• Deposition Author(s): Lehmann, F., Haile, S., Axen, E., Medina, C., Uppenberg, J., Svensson, S., Lundback, T., Rondahl, L., Barf, T.

Revision History 

• Version 1.0: 2004-08-24
  Type: Initial release
• Version 1.1: 2008-04-30
  Type: Version format compliance
• Version 1.2: 2011-07-13
  Type: Version format compliance