FABP4 in complex with 6-Chloro-2-isopropyl-4-(3-isopropyl-phenyl)-quinoline-3-carboxylic acid

Experimental Data Snapshot

  • Resolution: 1.14 Å
  • R-Value Free: 0.173 
  • R-Value Work: 0.136 
  • R-Value Observed: 0.138 

Starting Model: other
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Ligand Structure Quality Assessment 

This is version 1.1 of the entry. See complete history


Design and synthesis of selective, dual fatty acid binding protein 4 and 5 inhibitors.

Kuhne, H.Obst-Sander, U.Kuhn, B.Conte, A.Ceccarelli, S.M.Neidhart, W.Rudolph, M.G.Ottaviani, G.Gasser, R.So, S.S.Li, S.Zhang, X.Gao, L.Myers, M.

(2016) Bioorg Med Chem Lett 26: 5092-5097

  • DOI: https://doi.org/10.1016/j.bmcl.2016.08.071
  • Primary Citation of Related Structures:  
    5HZ5, 5HZ6, 5HZ8, 5HZ9

  • PubMed Abstract: 

    Dual inhibition of fatty acid binding proteins 4 and 5 (FABP4 and FABP5) is expected to provide beneficial effects on a number of metabolic parameters such as insulin sensitivity and blood glucose levels and should protect against atherosclerosis. Starting from a FABP4 selective focused screening hit, biostructure information was used to modulate the selectivity profile in the desired way and to design potent dual FABP4/5 inhibitors with good selectivity against FABP3. With very good pharmacokinetic properties and no major safety alerts, compound 12 was identified as a suitable tool compound for further in vivo investigations.

  • Organizational Affiliation

    Roche Pharmaceutical Research and Early Development, Roche Innovation Center Basel, F. Hoffmann-La Roche Ltd, 4070 Basel, Switzerland. Electronic address: holger.kuehne@roche.com.

Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Fatty acid-binding protein, adipocyte131Homo sapiensMutation(s): 0 
Gene Names: FABP4
UniProt & NIH Common Fund Data Resources
Find proteins for P15090 (Homo sapiens)
Explore P15090 
Go to UniProtKB:  P15090
GTEx:  ENSG00000170323 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP15090
Sequence Annotations
  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChains Name / Formula / InChI Key2D Diagram3D Interactions
Query on 65Y

Download Ideal Coordinates CCD File 
B [auth A]6-Chloro-2-isopropyl-4-(3-isopropyl-phenyl)-quinoline-3-carboxylic acid
C22 H22 Cl N O2
Experimental Data & Validation

Experimental Data

  • Resolution: 1.14 Å
  • R-Value Free: 0.173 
  • R-Value Work: 0.136 
  • R-Value Observed: 0.138 
  • Space Group: P 2 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 31.753α = 90
b = 53.256β = 90
c = 72.193γ = 90
Software Package:
Software NamePurpose
XSCALEdata scaling
PDB_EXTRACTdata extraction
XDSdata reduction

Structure Validation

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Ligand Structure Quality Assessment 

Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2016-12-14
    Type: Initial release
  • Version 1.1: 2024-05-01
    Changes: Data collection, Database references, Refinement description