1BML

COMPLEX OF THE CATALYTIC DOMAIN OF HUMAN PLASMIN AND STREPTOKINASE


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.90 Å
  • R-Value Free: 0.291 
  • R-Value Work: 0.201 
  • R-Value Observed: 0.201 

wwPDB Validation   3D Report Full Report


This is version 1.3 of the entry. See complete history


Literature

Crystal structure of the catalytic domain of human plasmin complexed with streptokinase.

Wang, X.Lin, X.Loy, J.A.Tang, J.Zhang, X.C.

(1998) Science 281: 1662-1665

  • DOI: 10.1126/science.281.5383.1662
  • Primary Citation of Related Structures:  
    1BML

  • PubMed Abstract: 
  • Streptokinase is a plasminogen activator widely used in treating blood-clotting disorders. Complexes of streptokinase with human plasminogen can hydrolytically activate other plasminogen molecules to plasmin, which then dissolves blood clots. A similar b ...

    Streptokinase is a plasminogen activator widely used in treating blood-clotting disorders. Complexes of streptokinase with human plasminogen can hydrolytically activate other plasminogen molecules to plasmin, which then dissolves blood clots. A similar binding activation mechanism also occurs in some key steps of blood coagulation. The crystal structure of streptokinase complexed with the catalytic unit of human plasmin was solved at 2.9 angstroms. The amino-terminal domain of streptokinase in the complex is hypothesized to enhance the substrate recognition. The carboxyl-terminal domain of streptokinase, which binds near the activation loop of plasminogen, is likely responsible for the contact activation of plasminogen in the complex.


    Organizational Affiliation

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



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
PLASMIN AB250Homo sapiensMutation(s): 1 
Gene Names: PLG
EC: 3.4.21.7
Find proteins for P00747 (Homo sapiens)
Explore P00747 
Go to UniProtKB:  P00747
NIH Common Fund Data Resources
PHAROS:  P00747
Protein Feature View
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  • Reference Sequence
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
STREPTOKINASE CD362Streptococcus dysgalactiae subsp. equisimilisMutation(s): 0 
Gene Names: skc
Find proteins for P00779 (Streptococcus dysgalactiae subsp. equisimilis)
Explore P00779 
Go to UniProtKB:  P00779
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.90 Å
  • R-Value Free: 0.291 
  • R-Value Work: 0.201 
  • R-Value Observed: 0.201 
  • Space Group: P 1 21 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 80.03α = 90
b = 125.05β = 105.41
c = 86.79γ = 90
Software Package:
Software NamePurpose
SAINTdata scaling
SAINTdata reduction
MLPHAREphasing
X-PLORrefinement

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

  • Deposited Date: 1999-05-25 
  • Released Date: 1999-08-02 
  • Deposition Author(s): Wang, X., Zhang, X.C.

Revision History 

  • Version 1.0: 1999-08-02
    Type: Initial release
  • Version 1.1: 2008-04-26
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Derived calculations, Version format compliance
  • Version 1.3: 2018-03-14
    Changes: Database references