› 1psq

X-ray diffraction
2.3Å resolution

Structure of a probable thiol peroxidase from Streptococcus pneumoniae

Released:
DOI: 10.2210/pdb1psq/pdb
PDB entry 1psq coloured by chain, front view.
PDB entry 1psq coloured by chain, side view.
PDB entry 1psq coloured by chain, top view.
Source organism: Streptococcus pneumoniae
Entry authors: Kniewel R, Buglino J, Solorzano V, Wu J, Lima CD, Burley SK, New York SGX Research Center for Structural Genomics (NYSGXRC)

Function and Biology Details

Reaction catalysed: 
Thioredoxin + ROOH = thioredoxin disulfide + H(2)O + ROH
Biochemical function:
Biological process:
Cellular component:
  • not assigned
Sequence domains:
Structure domain:

Structure analysis Details

Assembly composition:
homo dimer (preferred)
Assembly name:
PDBe Complex ID:
PDB-CPX-142999 (preferred)
Entry contents:
1 distinct polypeptide molecule
Macromolecule:
Thiol peroxidase Chains: A, B
Molecule details ›
Chains: A, B
Length: 163 amino acids
Theoretical weight: 18.18 KDa
Source organism: Streptococcus pneumoniae
Expression system: Escherichia coli
UniProt:
  • Canonical: P0C2J8 (Residues: 1-163; Coverage: 100%)
Gene names: SP_1651, psaD, tpx
Sequence domains: Redoxin
Structure domains: Glutaredoxin

Ligands and Environments

No bound ligands
1 modified residue:
Ligand MSE 6 x MSE

Experiments and Validation Details

Entry percentile scores
X-ray source: NSLS BEAMLINE X9A
Spacegroup: C2
Unit cell:
a: 102.005Å b: 49.897Å c: 81.66Å
α: 90° β: 116.85° γ: 90°
R-values:
R R work R free
0.2 0.2 0.249
Expression system: Escherichia coli

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