1GP7

Acidic Phospholipase A2 from venom of Ophiophagus Hannah


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.6 Å
  • R-Value Free: 0.233 
  • R-Value Work: 0.205 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Structure of a Cardiotoxic Phospholipase A(2) from Ophiophagus Hannah with the "Pancreatic Loop"

Zhang, H.Xu, S.Wang, Q.Song, S.Shu, Y.Lin, Z.

(2002) J.Struct.Biol. 138: 207


  • PubMed Abstract: 
  • The crystal structure of an acidic phospholipase A(2) from Ophiophagus hannah (king cobra) has been determined by molecular replacement at 2.6-A resolution to a crystallographic R factor of 20.5% (R(free)=23.3%) with reasonable stereochemistry. The v ...

    The crystal structure of an acidic phospholipase A(2) from Ophiophagus hannah (king cobra) has been determined by molecular replacement at 2.6-A resolution to a crystallographic R factor of 20.5% (R(free)=23.3%) with reasonable stereochemistry. The venom enzyme contains an unusual "pancreatic loop." The conformation of the loop is well defined and different from those in pancreas PLA(2), showing its structural variability. This analysis provides the first structure of a PLA(2)-type cardiotoxin. The sites related to the cardiotoxic and myotoxic activities are explored and the oligomer observed in the crystalline state is described.


    Related Citations: 
    • Crystallization and Preliminary X-Ray Analysis of Cardiotoxic Phospholipase A2 from Ophiophagus Hannah (King Cobra)
      Wang, Z.,Zhuang, M.,Shu, Y.,Zhang, H.,Song, S.,Lin, Z.
      (2001) Acta Crystallogr.,Sect.D D57: 709


    Organizational Affiliation

    National Laboratory of Biomacromolecules, Institute of Biophysics, 100101, Beijing, China.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
PHOSPHOLIPASE A2
A, B, C
151Ophiophagus hannahEC: 3.1.1.4
Find proteins for P80966 (Ophiophagus hannah)
Go to UniProtKB:  P80966
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
CA
Query on CA

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

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.6 Å
  • R-Value Free: 0.233 
  • R-Value Work: 0.205 
  • Space Group: C 1 2 1
Unit Cell:
Length (Å)Angle (°)
a = 117.920α = 90.00
b = 62.940β = 100.93
c = 57.160γ = 90.00
Software Package:
Software NamePurpose
DENZOdata reduction
AMoREphasing
CNSrefinement
SCALEPACKdata scaling

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

  • Deposited Date: 2001-10-30 
  • Released Date: 2002-10-31 
  • Deposition Author(s): Zhang, H., Lin, Z.

Revision History 

  • Version 1.0: 2002-10-31
    Type: Initial release
  • Version 1.1: 2011-05-08
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance