1C4P

BETA DOMAIN OF STREPTOKINASE


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.4 Å
  • R-Value Free: 0.304 
  • R-Value Work: 0.237 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Crystal structure of streptokinase beta-domain.

Wang, X.Tang, J.Hunter, B.Zhang, X.C.

(1999) FEBS Lett. 459: 85-89


  • PubMed Abstract: 
  • Streptokinase, a 47 kDa secreted protein of hemolytic strains of streptococci, is a human plasminogen activator and contains three structural domains linked by flexible loops. We describe here the crystal structure of the isolated streptokinase middl ...

    Streptokinase, a 47 kDa secreted protein of hemolytic strains of streptococci, is a human plasminogen activator and contains three structural domains linked by flexible loops. We describe here the crystal structure of the isolated streptokinase middle (SKbeta) domain determined at 2.4 A resolution. Among the functionally important structural features is a putative binding site for a kringle domain of plasminogen located at the tip of a fully exposed hairpin loop. The distribution of genetically conserved residues of SKbeta is strongly correlated with their functions. The extensive interface of the SKbeta dimer suggests that such dimers may also exist in solution for free SKbeta.


    Organizational Affiliation

    Crystallography Program, Oklahoma Medical Research Foundation, 825 N. E. 13th Street, Oklahoma City, OK 73104, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
PROTEIN (STREPTOKINASE)
A, B, C, D
137Streptococcus dysgalactiae subsp. equisimilisN/A
Find proteins for Q53284 (Streptococcus dysgalactiae subsp. equisimilis)
Go to UniProtKB:  Q53284
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.4 Å
  • R-Value Free: 0.304 
  • R-Value Work: 0.237 
  • Space Group: P 21 21 21
Unit Cell:
Length (Å)Angle (°)
a = 73.970α = 90.00
b = 83.990β = 90.00
c = 97.220γ = 90.00
Software Package:
Software NamePurpose
SCALEPACKdata scaling
CNSrefinement
DENZOdata reduction
AMoREphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

  • Deposited Date: 1999-09-15 
  • Released Date: 1999-10-13 
  • Deposition Author(s): Wang, X., Zhang, X.C.

Revision History 

  • Version 1.0: 1999-10-13
    Type: Initial release
  • Version 1.1: 2008-04-26
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance