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CRYSTAL STRUCTURE OF PHYTATE COMPLEX ESCHERICHIA COLI PHYTASE AT PH 5.0. PHYTATE IS BOUND WITH ITS 3-PHOSPHATE IN THE ACTIVE SITE. HG2+ CATION ACTS AS AN INTERMOLECULAR BRIDGE

X-ray diffraction
2.05Å resolution
PDB entry 1dkq coloured by chain, front view.
PDB entry 1dkq coloured by chain, side view.
PDB entry 1dkq coloured by chain, top view.
Source organism: Escherichia coli
Assembly composition:
monomeric (preferred)
Entry contents: 1 distinct polypeptide molecule

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Assemblies

Assembly 1 (preferred)
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Assembly Name: Phytase AppA
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Multimeric state: monomeric
Accessible surface area: 17002.02 Å2
Buried surface area: 1352.95 Å2
Dissociation area: 64.16 Å2
Dissociation energy (ΔGdiss): 15.98 kcal/mol
Dissociation entropy (TΔSdiss): 1.8 kcal/mol
Symmetry number: 1
PDBe Complex ID: PDB-CPX-139374

Macromolecules

Phytase AppA
Chain: A
Length: 410 amino acids
Theoretical weight: 44.7 KDa
Source organism: Escherichia coli
Expression system: Escherichia coli
UniProt:
  • Canonical: P07102 (Residues: 23-432; Coverage: 100%)
Gene names: JW0963, appA, b0980
Pfam: Histidine phosphatase superfamily (branch 2)
InterPro:
CATH: Phosphoglycerate mutase-like
SCOP: Histidine acid phosphatase
Phytase AppA in PDB entry 1dkq, assembly 1, front view.
Phytase AppA in PDB entry 1dkq, assembly 1, side view.
Phytase AppA in PDB entry 1dkq, assembly 1, top view.
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