2AGT

Aldose Reductase Mutant Leu 300 Pro complexed with Fidarestat


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.00 Å
  • R-Value Free: 0.129 
  • R-Value Work: 0.105 
  • R-Value Observed: 0.106 

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+
  • Structures With Same Primary Citation

  • 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 reductaseA319Homo sapiensMutation(s): 1 
Gene Names: AKR1B1ALDR1ALR2
EC: 1.1.1.21 (PDB Primary Data), 1.1.1.300 (UniProt), 1.1.1.372 (UniProt), 1.1.1.54 (UniProt)
Find proteins for P15121 (Homo sapiens)
Explore P15121 
Go to UniProtKB:  P15121
NIH Common Fund Data Resources
PHAROS  P15121
Protein Feature View
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  • Reference Sequence
Small Molecules
Ligands 4 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
NAP
Query on NAP

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

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A
(2S,4S)-2-AMINOFORMYL-6-FLUORO-SPIRO[CHROMAN-4,4'-IMIDAZOLIDINE]-2',5'-DIONE
C12 H10 F N3 O4
WAAPEIZFCHNLKK-UFBFGSQYSA-N
 Ligand Interaction
CIT
Query on CIT

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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
External Ligand Annotations 
IDBinding Affinity (Sequence Identity %)
FIDΔH:  35.400001525878906   kJ/mol  BindingDB
FIDIC50:  30   nM  BindingDB
FIDΔG:  46.70000076293945   kJ/mol  BindingDB
FIDIC50:  9   nM  Binding MOAD
FIDΔG:  42.70000076293945   kJ/mol  BindingDB
FIDIC50:  9   nM  BindingDB
FIDIC50:  35   nM  BindingDB
FIDΔG:  35.400001525878906   kJ/mol  BindingDB
FIDΔH:  29.899999618530273   kJ/mol  BindingDB
FIDΔG:  37.900001525878906   kJ/mol  BindingDB
FIDΔG:  29.600000381469727   kJ/mol  BindingDB
FIDΔG:  38   kJ/mol  BindingDB
FID-TΔS:  29.709999084472656   kJ/mol  BindingDB
FID-TΔS:  9.800000190734863   kJ/mol  BindingDB
FIDIC50:  35   nM  BindingDB
FIDKd:  16   nM  BindingDB
FID-TΔS:  28.790000915527344   kJ/mol  BindingDB
FID-TΔS:  19.399999618530273   kJ/mol  BindingDB
FIDΔG:  38.900001525878906   kJ/mol  BindingDB
FID-TΔS:  5.659999847412109   kJ/mol  BindingDB
FID-TΔS:  0.6000000238418579   kJ/mol  BindingDB
FIDΔG:  29.299999237060547   kJ/mol  BindingDB
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.00 Å
  • R-Value Free: 0.129 
  • R-Value Work: 0.105 
  • R-Value Observed: 0.106 
  • Space Group: P 1 21 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 49.118α = 90
b = 66.724β = 92.79
c = 47.092γ = 90
Software Package:
Software NamePurpose
DENZOdata reduction
SCALEPACKdata scaling
AMoREphasing
SHELXL-97refinement

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History 

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