4GSO

structure of Jararacussin-I


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.60 Å
  • R-Value Free: 0.269 
  • R-Value Work: 0.216 
  • R-Value Observed: 0.218 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history


Literature

Crystal structure of Jararacussin-I: The highly negatively charged catalytic interface contributes to macromolecular selectivity in snake venom thrombin-like enzymes.

Ullah, A.Souza, T.A.Zanphorlin, L.M.Mariutti, R.B.Santana, V.S.Murakami, M.T.Arni, R.K.

(2013) Protein Sci 22: 128-132

  • DOI: 10.1002/pro.2189
  • Primary Citation of Related Structures:  
    4GSO

  • PubMed Abstract: 
  • Snake venom serine proteinases (SVSPs) are hemostatically active toxins that perturb the maintenance and regulation of both the blood coagulation cascade and fibrinolytic feedback system at specific points, and hence, are widely used as tools in phar ...

    Snake venom serine proteinases (SVSPs) are hemostatically active toxins that perturb the maintenance and regulation of both the blood coagulation cascade and fibrinolytic feedback system at specific points, and hence, are widely used as tools in pharmacological and clinical diagnosis. The crystal structure of a thrombin-like enzyme (TLE) from Bothrops jararacussu venom (Jararacussin-I) was determined at 2.48 Å resolution. This is the first crystal structure of a TLE and allows structural comparisons with both the Agkistrodon contortrix contortrix Protein C Activator and the Trimeresurus stejnegeri plasminogen activator. Despite the highly conserved overall fold, significant differences in the amino acid compositions and three-dimensional conformations of the loops surrounding the active site significantly alter the molecular topography and charge distribution profile of the catalytic interface. In contrast to other SVSPs, the catalytic interface of Jararacussin-I is highly negatively charged, which contributes to its unique macromolecular selectivity.


    Organizational Affiliation

    Multi User Center for Biomolecular Innovation, Department of Physics, IBILCE/UNESP, São Jose do Rio Preto, SP, Brazil.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Thrombin-like enzyme BjussuSP-1A232Bothrops jararacussuMutation(s): 0 
EC: 3.4.21
Find proteins for Q2PQJ3 (Bothrops jararacussu)
Explore Q2PQJ3 
Go to UniProtKB:  Q2PQJ3
Protein Feature View
Expand
 ( Mouse scroll to zoom / Hold left click to move )
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.60 Å
  • R-Value Free: 0.269 
  • R-Value Work: 0.216 
  • R-Value Observed: 0.218 
  • Space Group: I 4
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 84.533α = 90
b = 84.533β = 90
c = 80.243γ = 90
Software Package:
Software NamePurpose
MOLREPphasing
REFMACrefinement
HKL-2000data reduction
HKL-2000data scaling

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2012-12-12
    Type: Initial release
  • Version 1.1: 2013-01-02
    Changes: Database references