3CV7

Crystal structure of porcine aldehyde reductase ternary complex


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.412 Å
  • R-Value Free: 0.247 
  • R-Value Work: 0.191 

wwPDB Validation 3D Report Full Report


This is version 1.1 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: 10.1016/j.abb.2008.08.014

  • 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 inhibi ...

    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: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Alcohol dehydrogenase
A
325Sus scrofaMutation(s): 0 
Gene Names: AKR1A1 (ALR, ALR1)
EC: 1.1.1.2, 1.1.1.33, 1.1.1.372, 1.1.1.54
Find proteins for P50578 (Sus scrofa)
Go to Gene View: AKR1A1
Go to UniProtKB:  P50578
Small Molecules
Ligands 3 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
C2U
Query on C2U

Download SDF File 
Download CCD File 
A
3,5-dichloro-2-hydroxybenzoic acid
C7 H4 Cl2 O3
CNJGWCQEGROXEE-UHFFFAOYSA-N
 Ligand Interaction
SO4
Query on SO4

Download SDF File 
Download CCD File 
A
SULFATE ION
O4 S
QAOWNCQODCNURD-UHFFFAOYSA-L
 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 %)
C2UIC50: 11300 nM (99) BINDINGDB
C2UKi: 5.9 nM BINDINGMOAD
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.412 Å
  • R-Value Free: 0.247 
  • R-Value Work: 0.191 
  • Space Group: P 65 2 2
Unit Cell:
Length (Å)Angle (°)
a = 67.385α = 90.00
b = 67.385β = 90.00
c = 246.106γ = 120.00
Software Package:
Software NamePurpose
MAR345dtbdata collection
AUTOMARdata reduction
MOLREPphasing
REFMACrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2008-10-28
    Type: Initial release
  • Version 1.1: 2011-07-13
    Type: Version format compliance