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Biotin protein ligase R40G mutant from Aquifex aeolicus in complex with biotin

X-ray diffraction
2.55Å resolution
PDB entry 3efr coloured by chain, front view.
PDB entry 3efr coloured by chain, side view.
PDB entry 3efr coloured by chain, top view.
Source organism: Aquifex aeolicus
Assembly composition:
monomeric (preferred)
Entry contents: 1 distinct polypeptide molecule

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Assemblies

Assembly 1
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Assembly Name: biotin--[biotin carboxyl-carrier protein] ligase
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Multimeric state: monomeric
Accessible surface area: 10817.21 Å2
Buried surface area: 1064.44 Å2
Dissociation area: 273.64 Å2
Dissociation energy (ΔGdiss): -5.72 kcal/mol
Dissociation entropy (TΔSdiss): 3.56 kcal/mol
Symmetry number: 1
PDBe Complex ID: PDB-CPX-130387
Assembly 2 (preferred)
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Assembly Name: biotin--[biotin carboxyl-carrier protein] ligase
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Multimeric state: monomeric
Accessible surface area: 10758.77 Å2
Buried surface area: 716.79 Å2
Dissociation area: 275.6 Å2
Dissociation energy (ΔGdiss): -6.84 kcal/mol
Dissociation entropy (TΔSdiss): 3.57 kcal/mol
Symmetry number: 1
PDBe Complex ID: PDB-CPX-130387

Macromolecules

biotin--[biotin carboxyl-carrier protein] ligase
Chains: A, B
Length: 233 amino acids
Theoretical weight: 26.65 KDa
Source organism: Aquifex aeolicus
Expression system: Escherichia coli BL21(DE3)
UniProt:
  • Canonical: O66837 (Residues: 1-233; Coverage: 100%)
Gene names: aq_566, birA
Pfam:
InterPro:
CATH:
biotin--[biotin carboxyl-carrier protein] ligase in PDB entry 3efr, assembly 2, front view.
biotin--[biotin carboxyl-carrier protein] ligase in PDB entry 3efr, assembly 2, side view.
biotin--[biotin carboxyl-carrier protein] ligase in PDB entry 3efr, assembly 2, top view.
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