X-ray diffraction
2.5Å resolution

X-ray Crystal structure of complex between Torpedo californica AChE and a reversible inhibitor, 4-Amino-5-fluoro-2-methyl-3-(3-trifluoroacetylbenzylthiomethyl)quinoline


Function and Biology Details

Reaction catalysed:
Acetylcholine + H(2)O = choline + acetate

Structure analysis Details

Assembly composition:
homo dimer (preferred)
Entry contents:
1 distinct polypeptide molecule
Macromolecules (2 distinct):
Acetylcholinesterase Chain: A
Molecule details ›
Chain: A
Length: 543 amino acids
Theoretical weight: 61.33 KDa
Source organism: Tetronarce californica
  • Canonical: P04058 (Residues: 22-564; Coverage: 96%)
Gene name: ache
Sequence domains: Carboxylesterase family
Structure domains: alpha/beta hydrolase

Ligands and Environments

Carbohydrate polymer : NEW Components: NAG
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: RIGAKU FR300
Spacegroup: P3121
Unit cell:
a: 112.332Å b: 112.332Å c: 137.073Å
α: 90° β: 90° γ: 120°
R R work R free
0.183 0.183 0.214