1U73

Crystal structure of a Dimeric Acidic Platelet Aggregation Inhibitor and Hypotensive Phospholipase A2 from Bothrops jararacussu


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.90 Å
  • R-Value Free: 0.247 
  • R-Value Work: 0.190 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

Crystal structure of an acidic platelet aggregation inhibitor and hypotensive phospholipase A(2) in the monomeric and dimeric states: insights into its oligomeric state

Magro, A.J.Murakami, M.T.Marcussi, S.Soares, A.M.Arni, R.K.Fontes, M.R.

(2004) Biochem Biophys Res Commun 323: 24-31

  • DOI: 10.1016/j.bbrc.2004.08.046
  • Primary Citation of Related Structures:  
    1U73, 1UMV

  • PubMed Abstract: 
  • Phospholipases A2 belong to the superfamily of proteins which hydrolyzes the sn-2 acyl groups of membrane phospholipids to release arachidonic acid and lysophospholipids. An acidic phospholipase A2 isolated from Bothrops jararacussu snake venom prese ...

    Phospholipases A2 belong to the superfamily of proteins which hydrolyzes the sn-2 acyl groups of membrane phospholipids to release arachidonic acid and lysophospholipids. An acidic phospholipase A2 isolated from Bothrops jararacussu snake venom presents a high catalytic, platelet aggregation inhibition and hypotensive activities. This protein was crystallized in two oligomeric states: monomeric and dimeric. The crystal structures were solved at 1.79 and 1.90 angstroms resolution, respectively, for the two states. It was identified a Na+ ion at the center of Ca2+-binding site of the monomeric form. A novel dimeric conformation with the active sites exposed to the solvent was observed. Conformational states of the molecule may be due to the physicochemical conditions used in the crystallization experiments. We suggest dimeric state is one found in vivo.


    Related Citations: 
    • Structural and Functional Characterization of an Acidic Platelet Aggregation Inhibitor and Hypotensive Phospholipase A2 from Bothrops jararacussu Venom
      Andriao-Escarso, S.H., Soares, A.M., Fontes, M.R., Fuly, A.L., Correa, F.M., Rosa, J.C., Greene, L.J., Giglio, J.R.
      (2002) Biochem Pharmacol 64: 723

    Organizational Affiliation

    Departamento de Física e Biofísica, Instituto de Biociências, UNESP, Botucatu-SP, Brazil.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
hypotensive phospholipase A2AB122Bothrops jararacussuMutation(s): 0 
EC: 3.1.1.4
Find proteins for Q8AXY1 (Bothrops jararacussu)
Explore Q8AXY1 
Go to UniProtKB:  Q8AXY1
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.90 Å
  • R-Value Free: 0.247 
  • R-Value Work: 0.190 
  • Space Group: P 1 21 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 33.193α = 90
b = 63.136β = 102.3
c = 47.407γ = 90
Software Package:
Software NamePurpose
DENZOdata reduction
SCALEPACKdata scaling
AMoREphasing
CNSrefinement

Structure Validation

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Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2004-10-12
    Type: Initial release
  • Version 1.1: 2008-04-30
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance