2IAR

Crystal structure of squid ganglion DFPase W244H mutant


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.90 Å
  • R-Value Free: 0.255 
  • R-Value Work: 0.196 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

Crystal structure of diisopropylfluorophosphatase from Loligo vulgaris

Scharff, E.I.Koepke, J.Fritzsch, G.Luecke, C.Rueterjans, H.

(2001) Structure 9: 493-502

  • DOI: 10.1016/s0969-2126(01)00610-4
  • Structures With Same Primary Citation

  • PubMed Abstract: 
  • Phosphotriesterases (PTE) are enzymes capable of detoxifying organophosphate-based chemical warfare agents by hydrolysis. One subclass of these enzymes comprises the family of diisopropylfluorophosphatases (DFPases). The DFPase reported here was orig ...

    Phosphotriesterases (PTE) are enzymes capable of detoxifying organophosphate-based chemical warfare agents by hydrolysis. One subclass of these enzymes comprises the family of diisopropylfluorophosphatases (DFPases). The DFPase reported here was originally isolated from squid head ganglion of Loligo vulgaris and can be characterized as squid-type DFPase. It is capable of hydrolyzing the organophosphates diisopropylfluorophosphate, soman, sarin, tabun, and cyclosarin.


    Related Citations: 
    • Crystallization and preliminary X-ray crystallographic analysis of DFPase from Loligo vulgaris
      Scharff, E.I., Luecke, C., Fritzsch, G., Koepke, J., Hartleib, J., Dierl, S., Rueterjans, H.
      (2001) Acta Crystallogr D Biol Crystallogr 57: 148
    • Statistical analysis of crystallographic data obtained from squid ganglion DFPase at 0.85 A resolution
      Koepke, J., Scharff, E.I., Luecke, C., Rueterjans, H., Fritzsch, G.
      (2003) Acta Crystallogr D Biol Crystallogr 59: 1744
    • Mutational and structural studies of the diisopropylfluorophosphatase from Loligo vulgaris shed new light on the catalytic mechanism of the enzyme
      Katsemi, V., Luecke, C., Koepke, J., Loehr, F., Maurer, S., Fritzsch, G., Rueterjans, H.
      (2005) Biochemistry 44: 9022

    Organizational Affiliation

    Institute of Biophysical Chemistry, Johann Wolfgang Goethe-University, Marie-Curie-Strasse 9, D-60439, Frankfurt/Main, Germany.



Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
DiisopropylfluorophosphataseA312Loligo vulgarisMutation(s): 1 
EC: 3.1.8.2
Find proteins for Q7SIG4 (Loligo vulgaris)
Explore Q7SIG4 
Go to UniProtKB:  Q7SIG4
Protein Feature View
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  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
CA
Query on CA

Download CCD File 
A
CALCIUM ION
Ca
BHPQYMZQTOCNFJ-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.90 Å
  • R-Value Free: 0.255 
  • R-Value Work: 0.196 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 42.901α = 90
b = 81.696β = 90
c = 86.246γ = 90
Software Package:
Software NamePurpose
CrystalCleardata collection
CNSrefinement
HKL-2000data reduction
SCALEPACKdata scaling
CNSphasing

Structure Validation

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Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2006-09-26
    Type: Initial release
  • Version 1.1: 2008-05-01
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance