3F4C

Crystal structure of organophosphorus hydrolase from Geobacillus stearothermophilus strain 10, with glycerol bound


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.07 Å
  • R-Value Free: 0.252 
  • R-Value Work: 0.191 
  • R-Value Observed: 0.191 

wwPDB Validation   3D Report Full Report


This is version 1.3 of the entry. See complete history


Literature

Structural basis for thermostability revealed through the identification and characterization of a highly thermostable phosphotriesterase-like lactonase from Geobacillus stearothermophilus.

Hawwa, R.Aikens, J.Turner, R.J.Santarsiero, B.D.Mesecar, A.D.

(2009) Arch Biochem Biophys 488: 109-120

  • DOI: https://doi.org/10.1016/j.abb.2009.06.005
  • Primary Citation of Related Structures:  
    3F4C, 3F4D

  • PubMed Abstract: 

    A new enzyme homologous to phosphotriesterase was identified from the bacterium Geobacillus stearothermophilus (GsP). This enzyme belongs to the amidohydrolase family and possesses the ability to hydrolyze both lactone and organophosphate (OP) compounds, making it a phosphotriesterase-like lactonase (PLL). GsP possesses higher OP-degrading activity than recently characterized PLLs, and it is extremely thermostable. GsP is active up to 100 degrees C with an energy of activation of 8.0 kcal/mol towards ethyl paraoxon, and it can withstand an incubation temperature of 60 degrees C for two days. In an attempt to understand the thermostability of PLLs, the X-ray structure of GsP was determined and compared to those of existing PLLs. Based upon a comparative analysis, a new thermal advantage score and plot was developed and reveals that a number of different factors contribute to the thermostability of PLLs.


  • Organizational Affiliation

    Department of Medicinal Chemistry and Pharmacognosy and the Center for Pharmaceutical Biotechnology, University of Illinois at Chicago, Chicago, IL 60607, USA.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Organophosphorus hydrolase
A, B
332Geobacillus stearothermophilus 10Mutation(s): 0 
UniProt
Find proteins for D0VX06 (Geobacillus stearothermophilus (strain DSM 13240 / CIP 106956 / 10))
Explore D0VX06 
Go to UniProtKB:  D0VX06
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupD0VX06
Sequence Annotations
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.07 Å
  • R-Value Free: 0.252 
  • R-Value Work: 0.191 
  • R-Value Observed: 0.191 
  • Space Group: P 1 21 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 47.212α = 90
b = 156.761β = 116.49
c = 49.99γ = 90
Software Package:
Software NamePurpose
MAR345dtbdata collection
PHASERphasing
CNSrefinement
HKL-2000data reduction
SCALEPACKdata scaling

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2009-09-15
    Type: Initial release
  • Version 1.1: 2011-07-13
    Changes: Source and taxonomy, Version format compliance
  • Version 1.2: 2023-09-06
    Changes: Data collection, Database references, Derived calculations, Refinement description
  • Version 1.3: 2023-11-15
    Changes: Data collection