3CV7

Crystal structure of porcine aldehyde reductase ternary complex


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.41 Å
  • R-Value Free: 0.247 
  • R-Value Work: 0.191 
  • R-Value Observed: 0.194 

Starting Model: experimental
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This is version 1.2 of the entry. See complete history


Literature

Structure of aldehyde reductase in ternary complex with coenzyme and the potent 20alpha-hydroxysteroid dehydrogenase inhibitor 3,5-dichlorosalicylic acid: Implications for inhibitor binding and selectivity

Carbone, V.Chung, R.Endo, S.Hara, A.El-Kabbani, O.

(2008) Arch Biochem Biophys 479: 82-87

  • DOI: https://doi.org/10.1016/j.abb.2008.08.014
  • Primary Citation of Related Structures:  
    3CV7

  • PubMed Abstract: 

    The structure of aldehyde reductase (ALR1) in ternary complex with the coenzyme NADPH and 3,5-dichlorosalicylic acid (DCL), a potent inhibitor of human 20alpha-hydroxysteroid dehydrogenase (AKR1C1), was determined at a resolution of 2.41A. The inhibitor formed a network of hydrogen bonds with the active site residues Trp22, Tyr50, His113, Trp114 and Arg312. Molecular modelling calculations together with inhibitory activity measurements indicated that DCL was a less potent inhibitor of ALR1 (256-fold) when compared to AKR1C1. In AKR1C1, the inhibitor formed a 10-fold stronger binding interaction with the catalytic residue (Tyr55), non-conserved hydrogen bonding interaction with His222, and additional van der Waals contacts with the non-conserved C-terminal residues Leu306, Leu308 and Phe311 that contribute to the inhibitor's selectivity advantage for AKR1C1 over ALR1.


  • Organizational Affiliation

    Medicinal Chemistry and Drug Action, Monash Institute of Pharmaceutical Sciences, Parkville, Victoria, Australia.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Alcohol dehydrogenase325Sus scrofaMutation(s): 0 
EC: 1.1.1.2
UniProt
Find proteins for P50578 (Sus scrofa)
Explore P50578 
Go to UniProtKB:  P50578
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP50578
Sequence Annotations
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.41 Å
  • R-Value Free: 0.247 
  • R-Value Work: 0.191 
  • R-Value Observed: 0.194 
  • Space Group: P 65 2 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 67.385α = 90
b = 67.385β = 90
c = 246.106γ = 120
Software Package:
Software NamePurpose
REFMACrefinement
MAR345dtbdata collection
AUTOMARdata reduction
MOLREPphasing

Structure Validation

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Ligand Structure Quality Assessment 


Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2008-10-28
    Type: Initial release
  • Version 1.1: 2011-07-13
    Changes: Version format compliance
  • Version 1.2: 2023-11-01
    Changes: Data collection, Database references, Derived calculations, Refinement description