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X-ray structure of the HPr kinase/phosphatase from Staphylococcus xylosus at 1.95 A resolution

X-ray diffraction
1.95Å resolution
PDB 1ko7 coloured by chain and viewed from the front.
PDB 1ko7 coloured by chain and viewed from the side.
PDB 1ko7 coloured by chain and viewed from the top.
Source organism: Staphylococcus xylosus
Assembly composition:
homo trimer (preferred)
Entry contents: 1 distinct polypeptide molecule

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Assemblies

Assembly 1 (preferred)
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Multimeric state: homo trimer
Accessible surface area: 39800 Å2
Buried surface area: 8900 Å2
Dissociation area: 3,500 Å2
Dissociation energy (ΔGdiss): 28 kcal/mol
Dissociation entropy (TΔSdiss): 28 kcal/mol
Interface energy (ΔGint): -107 kcal/mol
Symmetry number: 3
Assembly 2
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Multimeric state: homo trimer
Accessible surface area: 39100 Å2
Buried surface area: 8600 Å2
Dissociation area: 3,300 Å2
Dissociation energy (ΔGdiss): 26 kcal/mol
Dissociation entropy (TΔSdiss): 28 kcal/mol
Interface energy (ΔGint): -107 kcal/mol
Symmetry number: 3

Macromolecules

HPr kinase/phosphorylase
Chains: A, B
Length: 314 amino acids
Theoretical weight: 35.37 KDa
Source organism: Staphylococcus xylosus
Expression system: Escherichia coli
UniProt:
  • Canonical: Q9S1H5 (Residues: 1-314; Coverage: 100%)
Gene name: hprK
Pfam:
InterPro:
CATH:
SCOP:
PDB 1ko7 contains 3 copies of HPr kinase/phosphorylase in assembly 1. This protein is highlighted and viewed from the front.
PDB 1ko7 contains 3 copies of HPr kinase/phosphorylase in assembly 1. This protein is highlighted and viewed from the side.
PDB 1ko7 contains 3 copies of HPr kinase/phosphorylase in assembly 1. This protein is highlighted and viewed from the top.
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