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Crystal structure of Mycobacterium tuberculosis dethiobiotin synthetase in complex with cytidine triphosphate solved by precipitant-ligand exchange (crystals grown in citrate precipitant)

X-ray diffraction
2.5Å resolution
PDB entry 6e06 coloured by chain, front view.
PDB entry 6e06 coloured by chain, side view.
PDB entry 6e06 coloured by chain, top view.
Source organism: Mycobacterium tuberculosis H37Rv
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: Dethiobiotin synthetase BioD
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Multimeric state: homo dimer
Accessible surface area: 17463.84 Å2
Buried surface area: 3715.54 Å2
Dissociation area: 1,081.9 Å2
Dissociation energy (ΔGdiss): 8.54 kcal/mol
Dissociation entropy (TΔSdiss): 12.65 kcal/mol
Symmetry number: 2
PDBe Complex ID: PDB-CPX-162006
Assembly 2
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Assembly Name: Dethiobiotin synthetase BioD
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Multimeric state: homo dimer
Accessible surface area: 17706.61 Å2
Buried surface area: 3702.24 Å2
Dissociation area: 1,056.42 Å2
Dissociation energy (ΔGdiss): 6.17 kcal/mol
Dissociation entropy (TΔSdiss): 12.65 kcal/mol
Symmetry number: 2
PDBe Complex ID: PDB-CPX-162006

Macromolecules

Dethiobiotin synthetase BioD
Chains: A, B, C, D
Length: 235 amino acids
Theoretical weight: 23.47 KDa
Source organism: Mycobacterium tuberculosis H37Rv
Expression system: Escherichia coli BL21
UniProt:
  • Canonical: P9WPQ5 (Residues: 2-226; Coverage: 100%)
Gene names: MTCY336.33c, Rv1570, bioD
Pfam: AAA domain
InterPro:
CATH: P-loop containing nucleotide triphosphate hydrolases
Dethiobiotin synthetase BioD in PDB entry 6e06, assembly 1, front view.
Dethiobiotin synthetase BioD in PDB entry 6e06, assembly 1, side view.
Dethiobiotin synthetase BioD in PDB entry 6e06, assembly 1, top view.
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