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Crystal Structure of E.coli Dha kinase DhaK (H56N) complex with Dha

X-ray diffraction
2.2Å resolution
PDB entry 3pnq coloured by chain, front view.
PDB entry 3pnq coloured by chain, side view.
PDB entry 3pnq coloured by chain, top view.
Source organism: Escherichia coli K-12
Assembly composition:
homo dimer (preferred)
Entry contents: 1 distinct polypeptide molecule

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Assemblies

Assembly 1
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Assembly Name: PEP-dependent dihydroxyacetone kinase, dihydroxyacetone-binding subunit DhaK
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Multimeric state: homo dimer
Accessible surface area: 23839.03 Å2
Buried surface area: 2548.22 Å2
Dissociation area: 1,274.11 Å2
Dissociation energy (ΔGdiss): 4.01 kcal/mol
Dissociation entropy (TΔSdiss): 13.69 kcal/mol
Symmetry number: 2
PDBe Complex ID: PDB-CPX-160035
Assembly 2 (preferred)
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Assembly Name: PEP-dependent dihydroxyacetone kinase, dihydroxyacetone-binding subunit DhaK
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Multimeric state: homo dimer
Accessible surface area: 23816.76 Å2
Buried surface area: 2787.0 Å2
Dissociation area: 1,259.36 Å2
Dissociation energy (ΔGdiss): 3.22 kcal/mol
Dissociation entropy (TΔSdiss): 13.68 kcal/mol
Symmetry number: 2
PDBe Complex ID: PDB-CPX-160035

Macromolecules

PEP-dependent dihydroxyacetone kinase, dihydroxyacetone-binding subunit DhaK
Chains: A, B, C, D
Length: 357 amino acids
Theoretical weight: 38.24 KDa
Source organism: Escherichia coli K-12
Expression system: Escherichia coli BL21(DE3)
UniProt:
  • Canonical: P76015 (Residues: 2-356; Coverage: 100%)
Gene names: JW5187, b1200, dhaK, ycgT
Pfam: Dak1 domain
InterPro:
CATH:
PEP-dependent dihydroxyacetone kinase, dihydroxyacetone-binding subunit DhaK in PDB entry 3pnq, assembly 2, front view.
PEP-dependent dihydroxyacetone kinase, dihydroxyacetone-binding subunit DhaK in PDB entry 3pnq, assembly 2, side view.
PEP-dependent dihydroxyacetone kinase, dihydroxyacetone-binding subunit DhaK in PDB entry 3pnq, assembly 2, top view.
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