Structure analysis

Crystal Structure of Biotin Carboxyl Carrier Protein-Biotin Carboxylase Complex from E.coli

X-ray diffraction
2.495Å resolution
Source organism: Escherichia coli K-12
Assembly composition:
hetero octamer (preferred)
Entry contents: 2 distinct polypeptide molecules

Assemblies

Assembly 1 (preferred)
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Multimeric state: hetero octamer
Accessible surface area: 78318.62 Å2
Buried surface area: 15929.8 Å2
Dissociation area: 677.39 Å2
Dissociation energy (ΔGdiss): 4.06 kcal/mol
Dissociation entropy (TΔSdiss): 12.28 kcal/mol
Symmetry number: 4
PDBe Complex ID: PDB-CPX-142043

Macromolecules

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Chains: B, D, G, I
Length: 176 amino acids
Theoretical weight: 18.87 KDa
Source organism: Escherichia coli K-12
Expression system: Escherichia coli BL21(DE3)
UniProt:
  • Canonical: P0ABD8 (Residues: 1-156; Coverage: 100%)
Gene names: JW3223, accB, b3255, fabE
Pfam: Biotin-requiring enzyme
InterPro:
CATH: OB fold (Dihydrolipoamide Acetyltransferase, E2P)

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