2IAT

Crystal structure of squid ganglion DFPase W244L mutant


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.9 Å
  • R-Value Free: 0.310 
  • R-Value Work: 0.233 

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

  • Primary Citation of Related Structures:  
  • Also Cited By: 3U0S, 2IAX, 2IAW, 2IAV

  • 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.,Sect.D 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.,Sect.D 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
Diisopropylfluorophosphatase
A
312Loligo vulgarisMutation(s): 1 
EC: 3.1.8.2
Find proteins for Q7SIG4 (Loligo vulgaris)
Go to UniProtKB:  Q7SIG4
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
CA
Query on CA

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

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.9 Å
  • R-Value Free: 0.310 
  • R-Value Work: 0.233 
  • Space Group: P 21 21 21
Unit Cell:
Length (Å)Angle (°)
a = 42.901α = 90.00
b = 81.696β = 90.00
c = 86.246γ = 90.00
Software Package:
Software NamePurpose
CrystalCleardata collection
CNSrefinement
CNSphasing
HKL-2000data reduction
SCALEPACKdata scaling

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

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