High resolution structure of mouse aldehyde reductase (AKR1a4) in its apo-form

Experimental Data Snapshot

  • Resolution: 1.64 Å
  • R-Value Free: 0.178 
  • R-Value Work: 0.148 
  • R-Value Observed: 0.149 

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This is version 1.3 of the entry. See complete history


High-resolution structure of AKR1a4 in the apo form and its interaction with ligands.

Faucher, F.Jia, Z.

(2012) Acta Crystallogr Sect F Struct Biol Cryst Commun 68: 1271-1274

  • DOI: https://doi.org/10.1107/S1744309112037128
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 

    Aldo-keto reductase 1a4 (AKR1a4; EC is the mouse orthologue of human aldehyde reductase (AKR1a1), the founding member of the AKR family. As an NADPH-dependent enzyme, AKR1a4 catalyses the conversion of D-glucuronate to L-gulonate. AKR1a4 is involved in ascorbate biosynthesis in mice, but has also recently been found to interact with SMAR1, providing a novel mechanism of ROS regulation by ATM. Here, the crystal structure of AKR1a4 in its apo form at 1.64 Å resolution as well as the characterization of the binding of AKR1a4 to NADPH and P44, a peptide derived from SMAR1, is presented.

  • Organizational Affiliation

    Department of Biomedical and Molecular Sciences, Queen's University, Kingston, Ontario K7L 3N6, Canada.

Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Alcohol dehydrogenase [NADP(+)]
A, B
324Mus musculusMutation(s): 0 
Gene Names: Akr1a1Akr1a4
Find proteins for Q9JII6 (Mus musculus)
Explore Q9JII6 
Go to UniProtKB:  Q9JII6
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ9JII6
Sequence Annotations
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Resolution: 1.64 Å
  • R-Value Free: 0.178 
  • R-Value Work: 0.148 
  • R-Value Observed: 0.149 
  • Space Group: P 1 21 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 56.94α = 90
b = 92.62β = 106.16
c = 70.1γ = 90
Software Package:
Software NamePurpose
XSCALEdata scaling
PDB_EXTRACTdata extraction
Blu-Icedata collection
XDSdata reduction

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2012-11-07
    Type: Initial release
  • Version 1.1: 2013-01-23
    Changes: Database references
  • Version 1.2: 2017-11-15
    Changes: Advisory, Refinement description
  • Version 1.3: 2023-09-13
    Changes: Advisory, Data collection, Database references, Derived calculations, Refinement description