Crystal structure of porcine pancreatic phospholipase A2 in complex with 1,2-dihydroxybenzene

Experimental Data Snapshot

  • Resolution: 2.50 Å
  • R-Value Free: 0.223 
  • R-Value Work: 0.182 
  • R-Value Observed: 0.184 

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Binding to PLA(2) may contribute to the anti-inflammatory activity of catechol

Dileep, K.V.Tintu, I.Mandal, P.K.Karthe, P.Haridas, M.Sadasivan, C.

(2011) Chem Biol Drug Des 

  • DOI: https://doi.org/10.1111/j.1747-0285.2011.01258.x
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 

    Inhibiting PLA(2) activity should, in theory, be an effective approach to control the inflammation. Several naturally occurring polyphenolic compounds have been reported as inhibitors of PLA(2) . Among the naturally occurring polyphenols, catechol (1,2-dihydroxybenzene) possesses anti-inflammatory activity. Catechol can inhibit cyclooxygenase and lipo-oxygenase. By means of enzyme kinetic study, it was revealed that catechol can inhibit PLA(2) also. Crystal structure showed that catechol binds to PLA(2) at the opening of the active site cleft. This might stop the entry of substrate into the active site. Hence, catechol can be used as a lead compound for the development of novel anti-inflammatory drugs with PLA(2) as the target.

  • Organizational Affiliation

    Department of Biotechnology and Microbiology, Kannur University, Thalassery Campus, Palayad, Kerala, India.

Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Phospholipase A2, major isoenzyme124Sus scrofaMutation(s): 0 
Find proteins for P00592 (Sus scrofa)
Explore P00592 
Go to UniProtKB:  P00592
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP00592
Sequence Annotations
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Resolution: 2.50 Å
  • R-Value Free: 0.223 
  • R-Value Work: 0.182 
  • R-Value Observed: 0.184 
  • Space Group: P 31 2 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 69.24α = 90
b = 69.24β = 90
c = 69.67γ = 120
Software Package:
Software NamePurpose
MAR345dtbdata collection
Automodel building
MOSFLMdata reduction
SCALAdata scaling

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2010-08-25
    Type: Initial release
  • Version 1.1: 2011-07-13
    Changes: Version format compliance
  • Version 1.2: 2011-11-23
    Changes: Database references, Structure summary