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Crystal structure of CaiB, a type III CoA transferase in carnitine metabolism

X-ray diffraction
1.85Å resolution
PDB entry 1xa3 coloured by chain, front view.
PDB entry 1xa3 coloured by chain, side view.
PDB entry 1xa3 coloured by chain, top view.
Source organism: Escherichia coli
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: L-carnitine CoA-transferase
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Multimeric state: homo dimer
Accessible surface area: 28094.72 Å2
Buried surface area: 13833.05 Å2
Dissociation area: 6,394.24 Å2
Dissociation energy (ΔGdiss): 102.43 kcal/mol
Dissociation entropy (TΔSdiss): 15.92 kcal/mol
Symmetry number: 2
PDBe Complex ID: PDB-CPX-152036

Macromolecules

L-carnitine CoA-transferase
Chains: A, B
Length: 437 amino acids
Theoretical weight: 49.7 KDa
Source organism: Escherichia coli
Expression system: Escherichia coli BL21(DE3)
UniProt:
  • Canonical: P31572 (Residues: 2-405; Coverage: 100%)
Gene names: JW0037, b0038, caiB, yaaN
Pfam: CoA-transferase family III
InterPro:
CATH:
SCOP: CoA-transferase family III (CaiB/BaiF)
L-carnitine CoA-transferase in PDB entry 1xa3, assembly 1, front view.
L-carnitine CoA-transferase in PDB entry 1xa3, assembly 1, side view.
L-carnitine CoA-transferase in PDB entry 1xa3, assembly 1, top view.
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