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Complex between the chemotaxis deamidase CheD and the chemotaxis phosphatase CheC from Thermotoga maritima

X-ray diffraction
2.4Å resolution
PDB entry 2f9z coloured by chain, front view.
PDB entry 2f9z coloured by chain, side view.
PDB entry 2f9z coloured by chain, top view.
Source organism: Thermotoga maritima MSB8
Assembly composition:
hetero dimer (preferred)
Entry contents: 2 distinct polypeptide molecules

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Assemblies

Assembly 1 (preferred)
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Assembly Name: CheY-P phosphatase CheC and Chemoreceptor glutamine deamidase CheD
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Multimeric state: hetero dimer
Accessible surface area: 15560.41 Å2
Buried surface area: 1638.12 Å2
Dissociation area: 819.06 Å2
Dissociation energy (ΔGdiss): 5.78 kcal/mol
Dissociation entropy (TΔSdiss): 11.66 kcal/mol
Symmetry number: 1
PDBe Complex ID: PDB-CPX-194663
Assembly 2
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Assembly Name: CheY-P phosphatase CheC and Chemoreceptor glutamine deamidase CheD
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Multimeric state: hetero dimer
Accessible surface area: 15915.0 Å2
Buried surface area: 1304.87 Å2
Dissociation area: 652.43 Å2
Dissociation energy (ΔGdiss): 2.69 kcal/mol
Dissociation entropy (TΔSdiss): 11.59 kcal/mol
Symmetry number: 1
PDBe Complex ID: PDB-CPX-194663

Macromolecules

CheY-P phosphatase CheC
Chains: A, B
Length: 205 amino acids
Theoretical weight: 22.57 KDa
Source organism: Thermotoga maritima MSB8
Expression system: Escherichia coli BL21(DE3)
UniProt:
  • Canonical: Q9X006 (Residues: 1-205; Coverage: 100%)
Gene names: TM_0904, cheC
Pfam: CheC-like family
InterPro:
CATH: CheC-like
SCOP: CheC-like
CheY-P phosphatase CheC in PDB entry 2f9z, assembly 1, front view.
CheY-P phosphatase CheC in PDB entry 2f9z, assembly 1, side view.
CheY-P phosphatase CheC in PDB entry 2f9z, assembly 1, top view.
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Chemoreceptor glutamine deamidase CheD
Chains: C, D
Length: 159 amino acids
Theoretical weight: 16.89 KDa
Source organism: Thermotoga maritima MSB8
Expression system: Escherichia coli BL21(DE3)
UniProt:
  • Canonical: Q9X005 (Residues: 1-157; Coverage: 100%)
Gene names: TM_0903, cheD
Pfam: CheD chemotactic sensory transduction
InterPro:
CATH: 60s Ribosomal Protein L30; Chain: A;
SCOP: CheD-like
Chemoreceptor glutamine deamidase CheD in PDB entry 2f9z, assembly 1, front view.
Chemoreceptor glutamine deamidase CheD in PDB entry 2f9z, assembly 1, side view.
Chemoreceptor glutamine deamidase CheD in PDB entry 2f9z, assembly 1, top view.
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