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Crystal Structure of Mycobacterium tuberculosis PKS11 Reveals Intermediates in the Synthesis of Methyl-branched Alkylpyrones

X-ray diffraction
1.73Å resolution
PDB entry 4jaq coloured by chain, front view.
PDB entry 4jaq coloured by chain, side view.
PDB entry 4jaq coloured by chain, top view.
Source organism: Mycobacterium tuberculosis
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: Methyl-branched alkylpyrone synthesis polyketide synthase-like Pks11
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Multimeric state: homo dimer
Accessible surface area: 23896.32 Å2
Buried surface area: 6156.19 Å2
Dissociation area: 2,117.59 Å2
Dissociation energy (ΔGdiss): 15.88 kcal/mol
Dissociation entropy (TΔSdiss): 14.09 kcal/mol
Symmetry number: 2
PDBe Complex ID: PDB-CPX-161977
Assembly 2
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Assembly Name: Methyl-branched alkylpyrone synthesis polyketide synthase-like Pks11
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Multimeric state: homo dimer
Accessible surface area: 23980.33 Å2
Buried surface area: 6131.68 Å2
Dissociation area: 2,502.8 Å2
Dissociation energy (ΔGdiss): 16.16 kcal/mol
Dissociation entropy (TΔSdiss): 14.18 kcal/mol
Symmetry number: 2
PDBe Complex ID: PDB-CPX-161977

Macromolecules

Methyl-branched alkylpyrone synthesis polyketide synthase-like Pks11
Chains: A, B, C, D
Length: 353 amino acids
Theoretical weight: 37.68 KDa
Source organism: Mycobacterium tuberculosis
Expression system: Mycolicibacterium smegmatis
UniProt:
  • Canonical: P9WPF3 (Residues: 1-353; Coverage: 100%)
Gene names: Rv1665, pks11
Pfam:
InterPro:
CATH: Peroxisomal Thiolase; Chain A, domain 1
Methyl-branched alkylpyrone synthesis polyketide synthase-like Pks11 in PDB entry 4jaq, assembly 1, front view.
Methyl-branched alkylpyrone synthesis polyketide synthase-like Pks11 in PDB entry 4jaq, assembly 1, side view.
Methyl-branched alkylpyrone synthesis polyketide synthase-like Pks11 in PDB entry 4jaq, assembly 1, top view.
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