1AE4

ALDEHYDE REDUCTASE COMPLEXED WITH COFACTOR AND INHIBITOR, ALPHA CARBON ATOMS ONLY


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.4 Å
  • R-Value Work: 0.190 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Studies on the inhibitor-binding site of porcine aldehyde reductase: crystal structure of the holoenzyme-inhibitor ternary complex.

el-Kabbani, O.Carper, D.A.McGowan, M.H.Devedjiev, Y.Rees-Milton, K.J.Flynn, T.G.

(1997) Proteins 29: 186-192


  • PubMed Abstract: 
  • Aldehyde reductase is an enzyme capable of metabolizing a wide variety of aldehydes to their corresponding alcohols. The tertiary structures of aldehyde reductase and aldose reductase are similar and consist of an alpha/beta-barrel with the active si ...

    Aldehyde reductase is an enzyme capable of metabolizing a wide variety of aldehydes to their corresponding alcohols. The tertiary structures of aldehyde reductase and aldose reductase are similar and consist of an alpha/beta-barrel with the active site located at the carboxy terminus of the strands of the barrel. We have determined the X-ray crystal structure of porcine aldehyde reductase holoenzyme in complex with an aldose reductase inhibitor, tolrestat, at 2.4 A resolution to obtain a picture of the binding conformation of inhibitors to aldehyde reductase. Tolrestat binds in the active site pocket of aldehyde reductase and interacts through van der Waals contacts with Arg 312 and Asp 313. The carboxylate group of tolrestat is within hydrogen bonding distance with His 113 and Trp 114. Mutation of Arg 312 to alanine in porcine aldehyde reductase alters the potency of inhibition of the enzyme by aldose reductase inhibitors. Our results indicate that the structure of the inhibitor-binding site of aldehyde reductase differs from that of aldose reductase due to the participation of nonconserved residues in its formation. A major difference is the participation of Arg 312 and Asp 313 in lining the inhibitor-binding site in aldehyde reductase but not in aldose reductase.


    Related Citations: 
    • Structure of Porcine Aldehyde Reductase Holoenzyme
      El-Kabbani, O.,Judge, K.,Ginell, S.L.,Myles, D.A.,Delucas, L.J.,Flynn, T.G.
      (1995) Nat.Struct.Mol.Biol. 2: 687


    Organizational Affiliation

    Victorian College of Pharmacy, Department of Medicinal Chemistry, Monash University, Parkville, Australia. ossama@fritz.vcp.monash.edu.au




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
ALDEHYDE REDUCTASE
A
325Sus scrofaMutation(s): 0 
Gene Names: AKR1A1 (ALR, ALR1)
EC: 1.1.1.2
Find proteins for P50578 (Sus scrofa)
Go to Gene View: AKR1A1
Go to UniProtKB:  P50578
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
External Ligand Annotations 
IDBinding Affinity (Sequence Identity %)
TOLIC50: 540 - 2190 nM (100) BINDINGDB
TOLKi: 3000 nM BINDINGMOAD
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.4 Å
  • R-Value Work: 0.190 
  • Space Group: P 65 2 2
Unit Cell:
Length (Å)Angle (°)
a = 67.800α = 90.00
b = 67.800β = 90.00
c = 245.280γ = 120.00
Software Package:
Software NamePurpose
X-PLORmodel building
XENGENdata reduction
X-PLORphasing
X-PLORrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

  • Deposited Date: 1997-03-05 
  • Released Date: 1998-03-11 
  • Deposition Author(s): El-Kabbani, O.

Revision History 

  • Version 1.0: 1998-03-11
    Type: Initial release
  • Version 1.1: 2008-03-24
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance