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Crystal structure of the mercury-bound form of MerB, the Organomercurial Lyase involved in a bacterial mercury resistance system

X-ray diffraction
1.64Å resolution
PDB entry 3f0p coloured by chain, front view.
PDB entry 3f0p coloured by chain, side view.
PDB entry 3f0p coloured by chain, top view.
Source organism: Escherichia coli
Assembly composition:
monomeric (preferred)
Entry contents: 1 distinct polypeptide molecule

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Assemblies

Assembly 1
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Assembly Name: Alkylmercury lyase
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Multimeric state: monomeric
Accessible surface area: 9771.96 Å2
Buried surface area: 145.07 Å2
Dissociation area: 72.53 Å2
Dissociation energy (ΔGdiss): 24.65 kcal/mol
Dissociation entropy (TΔSdiss): 1.8 kcal/mol
Symmetry number: 1
PDBe Complex ID: PDB-CPX-160120
Assembly 2 (preferred)
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Assembly Name: Alkylmercury lyase
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Multimeric state: monomeric
Accessible surface area: 9607.35 Å2
Buried surface area: 267.73 Å2
Dissociation area: 61.81 Å2
Dissociation energy (ΔGdiss): 0.15 kcal/mol
Dissociation entropy (TΔSdiss): 0.58 kcal/mol
Symmetry number: 1
PDBe Complex ID: PDB-CPX-160120

Macromolecules

Alkylmercury lyase
Chains: A, B
Length: 212 amino acids
Theoretical weight: 23.06 KDa
Source organism: Escherichia coli
Expression system: Escherichia coli
UniProt:
  • Canonical: P77072 (Residues: 1-212; Coverage: 100%)
Gene name: merB
Pfam:
InterPro:
CATH: Beta-Lactamase
Alkylmercury lyase in PDB entry 3f0p, assembly 2, front view.
Alkylmercury lyase in PDB entry 3f0p, assembly 2, side view.
Alkylmercury lyase in PDB entry 3f0p, assembly 2, top view.
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