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THREE-DIMENSIONAL STRUCTURE OF PHOSPHOTRIESTERASE: AN ENZYME CAPABLE OF DETOXIFYING ORGANOPHOSPHATE NERVE AGENTS

X-ray diffraction
2.1Å resolution
PDB entry 1pta coloured by chain, front view.
PDB entry 1pta coloured by chain, side view.
PDB entry 1pta coloured by chain, top view.
Source organism: Brevundimonas diminuta
Assembly composition:
homo dimer (preferred)
Entry contents: 1 distinct polypeptide molecule

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Assemblies

Assembly 1 (preferred)
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Assembly Name: Parathion hydrolase
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Multimeric state: homo dimer
Accessible surface area: 25610.16 Å2
Buried surface area: 3118.2 Å2
Dissociation area: 1,559.1 Å2
Dissociation energy (ΔGdiss): 15.94 kcal/mol
Dissociation entropy (TΔSdiss): 13.58 kcal/mol
Symmetry number: 2
PDBe Complex ID: PDB-CPX-141251

Macromolecules

Parathion hydrolase
Chain: A
Length: 327 amino acids
Theoretical weight: 35.49 KDa
Source organism: Brevundimonas diminuta
UniProt:
  • Canonical: P0A434 (Residues: 36-362; Coverage: 97%)
Gene name: opd
Pfam: Phosphotriesterase family
InterPro:
CATH: Metal-dependent hydrolases
SCOP: Phosphotriesterase-like
Parathion hydrolase in PDB entry 1pta, assembly 1, front view.
Parathion hydrolase in PDB entry 1pta, assembly 1, side view.
Parathion hydrolase in PDB entry 1pta, assembly 1, top view.
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