Structure analysis

Torpedo californica acetylcholinesterase in complex with a non hydrolysable substrate analogue, 4-oxo-N,N,N-trimethylpentanaminium

X-ray diffraction
2.6Å resolution
Source organism: Tetronarce californica
Assembly composition:
homo dimer (preferred)
Entry contents: 1 distinct polypeptide molecule

Assemblies

Assembly 1 (preferred)
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Multimeric state: homo dimer
Accessible surface area: 20400 Å2
Buried surface area: 2000 Å2
Dissociation area: 200 Å2
Dissociation energy (ΔGdiss): -8 kcal/mol
Dissociation entropy (TΔSdiss): 2 kcal/mol
Interface energy (ΔGint): 30 kcal/mol
Symmetry number: 1

Macromolecules

Chain: A
Length: 537 amino acids
Theoretical weight: 60.74 KDa
Source organism: Tetronarce californica
UniProt:
  • Canonical: P04058 (Residues: 22-558; Coverage: 95%)
Gene name: ache
Pfam: Carboxylesterase family
InterPro:
CATH: alpha/beta hydrolase
SCOP: Acetylcholinesterase-like

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