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CTX-M-14 Class A Beta-Lactamase Apo Crystal Structure at 0.79 Angstrom Resolution

X-ray diffraction
0.79Å resolution
PDB entry 4ua6 coloured by chain, front view.
PDB entry 4ua6 coloured by chain, side view.
PDB entry 4ua6 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 (preferred)
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Assembly Name: Beta-lactamase
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Multimeric state: monomeric
Accessible surface area: 10750.59 Å2
Buried surface area: 652.58 Å2
Dissociation area: 162.83 Å2
Dissociation energy (ΔGdiss): 2.25 kcal/mol
Dissociation entropy (TΔSdiss): 0.09 kcal/mol
Symmetry number: 1
PDBe Complex ID: PDB-CPX-124843
Assembly 2
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Assembly Name: Beta-lactamase
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Multimeric state: monomeric
Accessible surface area: 10582.03 Å2
Buried surface area: 724.32 Å2
Dissociation area: 42.54 Å2
Dissociation energy (ΔGdiss): 1.5 kcal/mol
Dissociation entropy (TΔSdiss): 0.64 kcal/mol
Symmetry number: 1
PDBe Complex ID: PDB-CPX-124843

Macromolecules

Beta-lactamase
Chains: A, B
Length: 263 amino acids
Theoretical weight: 27.98 KDa
Source organism: Escherichia coli
Expression system: Escherichia coli BL21(DE3)
UniProt:
  • Canonical: H6UQI0 (Residues: 23-284; Coverage: 100%)
Gene name: CTX-M-14
Pfam:
InterPro:
CATH: DD-peptidase/beta-lactamase superfamily
Beta-lactamase in PDB entry 4ua6, assembly 1, front view.
Beta-lactamase in PDB entry 4ua6, assembly 1, side view.
Beta-lactamase in PDB entry 4ua6, assembly 1, top view.
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