1PSQ

Structure of a probable thiol peroxidase from Streptococcus pneumoniae

• PDB DOI: https://doi.org/10.2210/pdb1PSQ/pdb

• Classification: OXIDOREDUCTASE
• Organism(s): Streptococcus pneumoniae
• Expression System: Escherichia coli
• Mutation(s): Yes 


• Deposited: 2003-06-21 Released: 2003-07-08 
• Deposition Author(s): Kniewel, R., Buglino, J., Solorzano, V., Wu, J., Lima, C.D., Burley, S.K., New York SGX Research Center for Structural Genomics (NYSGXRC)

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.30 Å
• R-Value Free: 0.249 
• R-Value Work: 0.200 
• R-Value Observed: 0.200 

Literature

Structure of a probable thiol peroxidase from Streptococcus pneumoniae

Kniewel, R., Buglino, J., Solorzano, V., Wu, J., Lima, C.D.

To be published.

Biological Assembly 1  

Global Symmetry: Cyclic - C2  (Explore in 3D)
Global Stoichiometry: Homo 2-mer - A2 

Biological assembly 1 assigned by authors and generated by PISA (software)

Macromolecule Content

• Total Structure Weight: 36.35 kDa 
• Atom Count: 2,791 
• Modelled Residue Count: 326 
• Deposited Residue Count: 326 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
probable thiol peroxidase	A, B	163	Streptococcus pneumoniae	Mutation(s): 3  Gene Names: TPX EC: 1.11.1 (PDB Primary Data), 1.11.1.24 (UniProt)
UniProt
Find proteins for P0C2J8 (Streptococcus pneumoniae serotype 4 (strain ATCC BAA-334 / TIGR4)) Explore P0C2J8  Go to UniProtKB:  P0C2J8

Small Molecules

Modified Residues  1 Unique
ID	Chains	Type	Formula	2D Diagram	Parent
MSE	A, B	L-PEPTIDE LINKING	C5 H11 N O2 Se		MET

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.30 Å
• R-Value Free: 0.249 
• R-Value Work: 0.200 
• R-Value Observed: 0.200 
• Space Group: C 1 2 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 102.005	α = 90
b = 49.897	β = 116.85
c = 81.66	γ = 90

Software Package:

Software Name	Purpose
DENZO	data reduction
SCALEPACK	data scaling
SOLVE	phasing
RESOLVE	model building
CNS	refinement
RESOLVE	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 2003-07-08 
Deposition Author(s): Kniewel, R., Buglino, J., Solorzano, V., Wu, J., Lima, C.D., Burley, S.K., New York SGX Research Center for Structural Genomics (NYSGXRC)

Revision History  

• Version 1.0: 2003-07-08
  Type: Initial release
  
• Version 1.1: 2008-04-29
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Version format compliance
• Version 1.3: 2011-11-16
  Changes: Atomic model
• Version 1.4: 2021-02-03
  Changes: Database references, Derived calculations, Structure summary
• Version 1.5: 2024-10-16
  Changes: Data collection, Database references, Structure summary