2AGT

Aldose Reductase Mutant Leu 300 Pro complexed with Fidarestat


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1 Å
  • R-Value Free: 0.129 
  • R-Value Work: 0.105 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Factorizing Selectivity Determinants of Inhibitor Binding toward Aldose and Aldehyde Reductases: Structural and Thermodynamic Properties of the Aldose Reductase Mutant Leu300Pro-Fidarestat Complex

Petrova, T.Steuber, H.Hazemann, I.Cousido-Siah, A.Mitschler, A.Chung, R.Oka, M.Klebe, G.El-Kabbani, O.Joachimiak, A.Podjarny, A.

(2005) J.Med.Chem. 48: 5659-5665

  • DOI: 10.1021/jm050424+

  • PubMed Abstract: 
  • Structure of the Leu300Pro mutant of human aldose reductase (ALR2) in complex with the inhibitor fidarestat is determined. Comparison with the hALR2-fidarestat complex and the porcine aldehyde reductase (ALR1)-fidarestat complex indicates that the hy ...

    Structure of the Leu300Pro mutant of human aldose reductase (ALR2) in complex with the inhibitor fidarestat is determined. Comparison with the hALR2-fidarestat complex and the porcine aldehyde reductase (ALR1)-fidarestat complex indicates that the hydrogen bond between the Leu300 amino group of the wild-type and the exocyclic amide group of the inhibitor is the key determinant for the specificity of fidarestat for ALR2 over ALR1. Thermodynamic data also suggest an enthalpic contribution as the predominant difference in the binding energy between the aldose reductase mutant and the wild-type. An additional selectivity-determining feature is the difference in the interaction between the inhibitor and the side chain of Trp219, ordered in the present structure but disordered (corresponding Trp220) in the ALR1-fidarestat complex. Thus, the hydrogen bond ( approximately 7 kJ/mol) corresponds to a 23-fold difference in inhibitor potency while the differences in the interactions between Trp219(ALR2) and fidarestat and between Trp220(ALR1) and fidarestat can account for an additional 10-fold difference in potency.


    Organizational Affiliation

    Laboratoire de Génomique et de Biologie Structurales, UMR 7104 du CNRS, IGBMC, 1 Rue Laurent Fries, B.P. 10142, 67404 Illkirch, France.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Aldose reductase
A
319Homo sapiensMutation(s): 1 
Gene Names: AKR1B1 (ALDR1)
EC: 1.1.1.21
Find proteins for P15121 (Homo sapiens)
Go to Gene View: AKR1B1
Go to UniProtKB:  P15121
Small Molecules
Ligands 4 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
CIT
Query on CIT

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Download CCD File 
A
CITRIC ACID
C6 H8 O7
KRKNYBCHXYNGOX-UHFFFAOYSA-N
 Ligand Interaction
CL
Query on CL

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A
CHLORIDE ION
Cl
VEXZGXHMUGYJMC-UHFFFAOYSA-M
 Ligand Interaction
NAP
Query on NAP

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Download CCD File 
A
NADP NICOTINAMIDE-ADENINE-DINUCLEOTIDE PHOSPHATE
2'-MONOPHOSPHOADENOSINE 5'-DIPHOSPHORIBOSE
C21 H28 N7 O17 P3
XJLXINKUBYWONI-NNYOXOHSSA-N
 Ligand Interaction
FID
Query on FID

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Download CCD File 
A
(2S,4S)-2-AMINOFORMYL-6-FLUORO-SPIRO[CHROMAN-4,4'-IMIDAZOLIDINE]-2',5'-DIONE
FIDARESTAT
C12 H10 F N3 O4
WAAPEIZFCHNLKK-UFBFGSQYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1 Å
  • R-Value Free: 0.129 
  • R-Value Work: 0.105 
  • Space Group: P 1 21 1
Unit Cell:
Length (Å)Angle (°)
a = 49.118α = 90.00
b = 66.724β = 92.79
c = 47.092γ = 90.00
Software Package:
Software NamePurpose
SCALEPACKdata scaling
AMoREphasing
DENZOdata reduction
SHELXL-97refinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2005-09-20
    Type: Initial release
  • Version 1.1: 2008-04-30
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance