1QQR | pdb_00001qqr

CRYSTAL STRUCTURE OF STREPTOKINASE DOMAIN B

• PDB DOI: https://doi.org/10.2210/pdb1QQR/pdb

• Classification: HYDROLASE ACTIVATOR
• Organism(s): Streptococcus dysgalactiae subsp. equisimilis
• Mutation(s): No 


• Deposited: 1999-06-07 Released: 1999-06-17 
• Deposition Author(s): Spraggon, G., Zhang, X.X., Ponting, C.P., Fox, V.F., Phillips, C., Smith, R.A.G., Jones, E.Y., Dobson, C., Stuart, D.I.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.30 Å
• R-Value Free: 
  0.242 (Depositor), 0.244 (DCC) 
• R-Value Work: 
  0.197 (Depositor), 0.199 (DCC) 
• R-Value Observed: 
  0.197 (Depositor) 

Starting Model: experimental

Literature

Crystal Structure of Streptokinse Domain B

Spraggon, G., Zhang, X.X., Ponting, C.P., Fox, V.F., Phillips, C., Smith, R.A.G., Jones, E.Y., Dobson, C., Stuart, D.I.

To be published.

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A1 

Biological assembly 1 assigned by authors.

Biological Assembly 2  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A1 

Biological assembly 2 assigned by authors.

Biological Assembly 3  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A1 

Biological assembly 3 assigned by authors.

Biological Assembly 4  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A1 

Biological assembly 4 assigned by authors.

Macromolecule Content 

• Total Structure Weight: 64.09 kDa 
• Atom Count: 4,794 
• Modeled Residue Count: 547 
• Deposited Residue Count: 552 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
STREPTOKINASE DOMAIN B	A, B, C, D	138	Streptococcus dysgalactiae subsp. equisimilis	Mutation(s): 0
UniProt
Find proteins for P00779 (Streptococcus dysgalactiae subsp. equisimilis) Explore P00779  Go to UniProtKB:  P00779

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.30 Å
• R-Value Free:  0.242 (Depositor), 0.244 (DCC) 
• R-Value Work:  0.197 (Depositor), 0.199 (DCC) 
• R-Value Observed: 0.197 (Depositor) 

Space Group: P 2₁ 2₁ 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 50.87	α = 90
b = 93.78	β = 90
c = 156.05	γ = 90

Software Package:

Software Name	Purpose
AMoRE	phasing
CNS	refinement
DENZO	data reduction
SCALEPACK	data scaling

Structure Validation

Entry History 

Deposition Data

• Released Date: 1999-06-17 
Deposition Author(s): Spraggon, G., Zhang, X.X., Ponting, C.P., Fox, V.F., Phillips, C., Smith, R.A.G., Jones, E.Y., Dobson, C., Stuart, D.I.

Revision History  

• Version 1.0: 1999-06-17
  Type: Initial release
  
• Version 1.1: 2008-04-27
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Version format compliance
• Version 1.3: 2023-08-16
  Changes: Data collection, Database references, Refinement description