[Effect of reversible inhibitors on the reaction capacity of functional portions of the active center of acetylcholinesterase]

Biull Eksp Biol Med. 1978 Oct;86(10):441-4.
[Article in Russian]

Abstract

The effect of galanthamine, tacrine, and oxazyl (ambenomum) on human red cells acetylcholinesterase phosphorylation by armine and Gd-42 (o-ethyl-s-beta-ethylthioethyl ester of methylthiophosphinic acid) was studied. In the presence of galanthamine phosphororganic inhibitors interacted only with the active center of the enzyme, the anionic site of which was not occupied by the reversible inhibitor. Tacrine and oxazyl decreased the reactivity of the free enzyme and the rate of its phosphorylation.

Publication types

  • Comparative Study

MeSH terms

  • Acetylcholinesterase*
  • Ambenonium Chloride
  • Armin
  • Binding Sites
  • Chemical Phenomena
  • Chemistry
  • Cholinesterase Inhibitors*
  • Galantamine
  • Humans
  • Organothiophosphorus Compounds*
  • Phosphorylation
  • Tacrine

Substances

  • Cholinesterase Inhibitors
  • Organothiophosphorus Compounds
  • Galantamine
  • methylsulfomethylate
  • Tacrine
  • Ambenonium Chloride
  • Acetylcholinesterase
  • Armin