Arabidopsis thaliana multifuctional protein, MFP2

Experimental Data Snapshot

  • Resolution: 2.50 Å
  • R-Value Free: 0.269 
  • R-Value Work: 0.216 
  • R-Value Observed: 0.218 

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This is version 1.4 of the entry. See complete history


The Multi-Functional Protein in Peroxisomal Beta-Oxidation. Structure and Substrate Specificity of the Arabidopsis Thaliana Protein, Mfp2

Arent, S.Pye, V.E.Christen, C.E.Norgaard, A.Henriksen, A.

(2010) J Biol Chem 285: 24066

  • DOI: https://doi.org/10.1074/jbc.M110.106005
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 

    Plant fatty acids can be completely degraded within the peroxisomes. Fatty acid degradation plays a role in several plant processes including plant hormone synthesis and seed germination. Two multifunctional peroxisomal isozymes, MFP2 and AIM1, both with 2-trans-enoyl-CoA hydratase and l-3-hydroxyacyl-CoA dehydrogenase activities, function in mouse ear cress (Arabidopsis thaliana) peroxisomal beta-oxidation, where fatty acids are degraded by the sequential removal of two carbon units. A deficiency in either of the two isozymes gives rise to a different phenotype; the biochemical and molecular background for these differences is not known. Structure determination of Arabidopsis MFP2 revealed that plant peroxisomal MFPs can be grouped into two families, as defined by a specific pattern of amino acid residues in the flexible loop of the acyl-binding pocket of the 2-trans-enoyl-CoA hydratase domain. This could explain the differences in substrate preferences and specific biological functions of the two isozymes. The in vitro substrate preference profiles illustrate that the Arabidopsis AIM1 hydratase has a preference for short chain acyl-CoAs compared with the Arabidopsis MFP2 hydratase. Remarkably, neither of the two was able to catabolize enoyl-CoA substrates longer than 14 carbon atoms efficiently, suggesting the existence of an uncharacterized long chain enoyl-CoA hydratase in Arabidopsis peroxisomes.

  • Organizational Affiliation

    Protein Chemistry Group, Carlsberg Laboratory, Gamle Carlsberg Vej 10, DK-2500 Valby, Denmark.

Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
FATTY ACID MULTIFUNCTIONAL PROTEIN (ATMFP2)725Arabidopsis thalianaMutation(s): 0 
Find proteins for Q9ZPI5 (Arabidopsis thaliana)
Explore Q9ZPI5 
Go to UniProtKB:  Q9ZPI5
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ9ZPI5
Sequence Annotations
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Resolution: 2.50 Å
  • R-Value Free: 0.269 
  • R-Value Work: 0.216 
  • R-Value Observed: 0.218 
  • Space Group: P 32 2 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 110.48α = 90
b = 110.48β = 90
c = 125.47γ = 120
Software Package:
Software NamePurpose
MOSFLMdata reduction
SCALAdata scaling

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2010-05-12
    Type: Initial release
  • Version 1.1: 2011-05-08
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance
  • Version 1.3: 2019-10-09
    Changes: Data collection, Experimental preparation, Other
  • Version 1.4: 2023-12-20
    Changes: Data collection, Database references, Refinement description