1JKM

BREFELDIN A ESTERASE, A BACTERIAL HOMOLOGUE OF HUMAN HORMONE SENSITIVE LIPASE


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.85 Å
  • R-Value Free: 0.206 
  • R-Value Work: 0.169 
  • R-Value Observed: 0.170 

wwPDB Validation   3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

Crystal structure of brefeldin A esterase, a bacterial homolog of the mammalian hormone-sensitive lipase.

Wei, Y.Contreras, J.A.Sheffield, P.Osterlund, T.Derewenda, U.Kneusel, R.E.Matern, U.Holm, C.Derewenda, Z.S.

(1999) Nat Struct Biol 6: 340-345

  • DOI: 10.1038/7576
  • Primary Citation of Related Structures:  
    1JKM

  • PubMed Abstract: 
  • Brefeldin A esterase (BFAE), a detoxifying enzyme isolated from Bacillus subtilis, hydrolyzes and inactivates BFA, a potent fungal inhibitor of intracellular vesicle-dependent secretory transport and poliovirus RNA replication. We have solved the crystal structure of BFAE and we discovered that the previously reported amino acid sequence was in serious error due to frame shifts in the cDNA sequence ...

    Brefeldin A esterase (BFAE), a detoxifying enzyme isolated from Bacillus subtilis, hydrolyzes and inactivates BFA, a potent fungal inhibitor of intracellular vesicle-dependent secretory transport and poliovirus RNA replication. We have solved the crystal structure of BFAE and we discovered that the previously reported amino acid sequence was in serious error due to frame shifts in the cDNA sequence. The correct sequence, inferred from the experimentally phased electron density map, revealed that BFAE is a homolog of the mammalian hormone sensitive lipase (HSL). It is a canonical alpha/beta hydrolase with two insertions forming the substrate binding pocket. The enzyme contains a lipase-like catalytic triad, Ser 202, Asp 308 and His 338, consistent with mutational studies that implicate the homologous Ser 424, Asp 693 and His 723 in the catalytic triad in human HSL.


    Organizational Affiliation

    Department of Molecular Physiology and Biological Physics, University of Virginia, Charlottesville 22906-0011, USA.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
BREFELDIN A ESTERASEA, B361Bacillus subtilisMutation(s): 0 
UniProt
Find proteins for O68884 (Bacillus subtilis)
Explore O68884 
Go to UniProtKB:  O68884
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupO68884
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.85 Å
  • R-Value Free: 0.206 
  • R-Value Work: 0.169 
  • R-Value Observed: 0.170 
  • Space Group: C 1 2 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 140.7α = 90
b = 82.6β = 112.5
c = 81.5γ = 90
Software Package:
Software NamePurpose
SHELX-90model building
SHELX-90refinement
XENGENdata reduction
DENZOdata reduction
SCALEPACKdata scaling
CCP4data scaling
SHELX-90phasing

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 1999-02-16
    Type: Initial release
  • Version 1.1: 2008-03-24
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance