1AH3

ALDOSE REDUCTASE COMPLEXED WITH TOLRESTAT INHIBITOR


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.3 Å
  • R-Value Free: 0.290 
  • R-Value Work: 0.207 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

A 'specificity' pocket inferred from the crystal structures of the complexes of aldose reductase with the pharmaceutically important inhibitors tolrestat and sorbinil.

Urzhumtsev, A.Tete-Favier, F.Mitschler, A.Barbanton, J.Barth, P.Urzhumtseva, L.Biellmann, J.F.Podjarny, A.Moras, D.

(1997) Structure 5: 601-612

  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • Aldose reductase (AR) is an NADPH-dependent enzyme implicated in long-term diabetic complications. Buried at the bottom of a deep hydrophobic cleft, the NADPH coenzyme is surrounded by the conserved hydrophilic residues of the AR active site. The exi ...

    Aldose reductase (AR) is an NADPH-dependent enzyme implicated in long-term diabetic complications. Buried at the bottom of a deep hydrophobic cleft, the NADPH coenzyme is surrounded by the conserved hydrophilic residues of the AR active site. The existence of an anionic binding site near the NADP+ has been determined from the structures of the complexes of AR with citrate, cacodylate and glucose-6-phosphate. The inhibitor zopolrestat binds to this anionic site, and in the hydrophobic cleft, after a change of conformation which opens a 'specificity' pocket.


    Organizational Affiliation

    UPR-de Biologie Structurale 9004 IGMBC CNRS/INSERM/ULP 1 rue Laurent Fries, B.P. 163, 67404, Illkirch, France.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
ALDOSE REDUCTASE
A
315Sus scrofaMutation(s): 0 
Gene Names: AKR1B1 (ALR2)
EC: 1.1.1.21
Find proteins for P80276 (Sus scrofa)
Go to Gene View: AKR1B1
Go to UniProtKB:  P80276
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
TOL
Query on TOL

Download SDF File 
Download CCD File 
A
TOLRESTAT
C16 H14 F3 N O3 S
LUBHDINQXIHVLS-UHFFFAOYSA-N
 Ligand Interaction
NAP
Query on NAP

Download SDF File 
Download CCD File 
A
NADP NICOTINAMIDE-ADENINE-DINUCLEOTIDE PHOSPHATE
2'-MONOPHOSPHOADENOSINE 5'-DIPHOSPHORIBOSE
C21 H28 N7 O17 P3
XJLXINKUBYWONI-NNYOXOHSSA-N
 Ligand Interaction
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
AYA
Query on AYA
A
L-PEPTIDE LINKINGC5 H9 N O3ALA
External Ligand Annotations 
IDBinding Affinity (Sequence Identity %)
TOLIC50: 1 - 1000 nM (86) BINDINGDB
TOLΔG: -29.3 - -46.7 kJ/mol (86) BINDINGDB
TOLΔH: -29.9 kJ/mol (86) BINDINGDB
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.3 Å
  • R-Value Free: 0.290 
  • R-Value Work: 0.207 
  • Space Group: P 43 21 2
Unit Cell:
Length (Å)Angle (°)
a = 68.420α = 90.00
b = 68.420β = 90.00
c = 153.560γ = 90.00
Software Package:
Software NamePurpose
MARSCALEdata scaling
XDSdata reduction
X-PLORphasing
X-PLORmodel building
X-PLORrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 1998-04-15
    Type: Initial release
  • Version 1.1: 2008-03-24
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance