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The 1.20 Angstrom Resolution Crystal Structure of the Aminopeptidase from Aeromonas proteolytica Complexed with Tris: A Tale of Buffer Inhibition

X-ray diffraction
1.2Å resolution
PDB entry 1lok coloured by chain, front view.
PDB entry 1lok coloured by chain, side view.
PDB entry 1lok coloured by chain, top view.
Source organism: Vibrio proteolyticus
Assembly composition:
monomeric (preferred)
Entry contents: 1 distinct polypeptide molecule

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Assemblies

Assembly 1 (preferred)
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Assembly Name: Bacterial leucyl aminopeptidase
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Multimeric state: monomeric
Accessible surface area: 10394.85 Å2
Buried surface area: 861.36 Å2
Dissociation area: 91.02 Å2
Dissociation energy (ΔGdiss): 5.73 kcal/mol
Dissociation entropy (TΔSdiss): -2.65 kcal/mol
Symmetry number: 1
PDBe Complex ID: PDB-CPX-169609

Macromolecules

Bacterial leucyl aminopeptidase
Chain: A
Length: 291 amino acids
Theoretical weight: 31.43 KDa
Source organism: Vibrio proteolyticus
UniProt:
  • Canonical: Q01693 (Residues: 107-397; Coverage: 60%)
Pfam: Peptidase family M28
InterPro:
CATH: Zn peptidases
SCOP: Bacterial dinuclear zinc exopeptidases
Bacterial leucyl aminopeptidase in PDB entry 1lok, assembly 1, front view.
Bacterial leucyl aminopeptidase in PDB entry 1lok, assembly 1, side view.
Bacterial leucyl aminopeptidase in PDB entry 1lok, assembly 1, top view.
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