Fumarylacetoacetate hydrolase (EaFAH) from psychrophilic Exiguobacterium antarcticum

Experimental Data Snapshot

  • Resolution: 2.10 Å
  • R-Value Free: 0.269 
  • R-Value Work: 0.202 
  • R-Value Observed: 0.206 

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Structural and functional analysis of a dimeric fumarylacetoacetate hydrolase (EaFAH) from psychrophilic Exiguobacterium antarcticum.

Yoo, W.Lee, C.W.Kim, B.Y.Huong Luu Le, L.T.Park, S.H.Kim, H.W.Shin, S.C.Kim, K.K.Lee, J.H.Kim, T.D.

(2019) Biochem Biophys Res Commun 509: 773-778

  • DOI: https://doi.org/10.1016/j.bbrc.2018.12.183
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 

    Fumarylacetoacetate hydrolase (FAH) is essential for the degradation of aromatic amino acids as well as for the cleavage of carbon-carbon bonds in metabolites or small organic compounds. Here, the X-ray crystal structure of EaFAH, a dimeric fumarylacetoacetate hydrolase from Exiguobacterium antarcticum, was determined, and its functional properties were investigated using biochemical methods. EaFAH adopts a mixed β-sandwich roll fold with a highly flexible lid region (Val 73 -Leu 94 ), and an Mg 2+ ion is bound at the active site by coordinating to the three carboxylate oxygen atoms of Glu 124 , Glu 126 , and Asp 155 . The hydrolytic activity of EaFAH toward various substrates, including linalyl acetate was investigated using native polyacrylamide gel electrophoresis, activity staining, gel filtration, circular dichroism spectroscopy, fluorescence, and enzyme assays.

  • Organizational Affiliation

    Department of Chemistry, College of Natural Science, Sookmyung Women's University, Seoul, 04310, South Korea; Department of Molecular Cell Biology, Samsung Biomedical Research Institute, Sungkyunkwan University School of Medicine, Suwon, 440-746, South Korea.

Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
5-oxopent-3-ene-1,2,5-tricarboxylate decarboxylase
A, B
285Exiguobacterium antarcticum B7Mutation(s): 0 
Gene Names: Eab7_1027
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
Sequence Annotations
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Resolution: 2.10 Å
  • R-Value Free: 0.269 
  • R-Value Work: 0.202 
  • R-Value Observed: 0.206 
  • Space Group: C 1 2 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 120.437α = 90
b = 72.656β = 101.68
c = 63.374γ = 90
Software Package:
Software NamePurpose
HKL-2000data reduction
HKL-2000data scaling

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2019-04-03
    Type: Initial release
  • Version 1.1: 2024-03-27
    Changes: Data collection, Database references