RT Journal Article SR Electronic T1 The Turnover Numbers of Acetylcholinesterase Forms JF Molecular Pharmacology JO Mol Pharmacol FD American Society for Pharmacology and Experimental Therapeutics SP 266 OP 270 VO 14 IS 2 A1 MICHAEL A. GORDON A1 DONALD E. CARPENTER A1 IRWIN B. WILSON YR 1978 UL http://molpharm.aspetjournals.org/content/14/2/266.abstract AB The turnover numbers of different acetylcholinesterase forms from electric eel, including the 18 S, 14 S, and 8 S asymmetrical forms and the 11 S lytic form, were measured using an extraordinarily active phosphorylating inhibitor, 7-(diethoxyphosphinyloxy)-N-methylquinolinium ion, as a titrating agent for the concentration of active sites. The 18 S and 14 S forms were about equally active. The 8 S and 11 S forms were about 35% more active than the 18 S and 14 S forms.