Acetylcholinesterase also acts on a variety of acetic esters and catalyses transacetylations. It is the most intensively studied of the cholinesterase enzymes due to its key physiological role in the turnover of the neurotransmitter acylcholine. This enzyme is found in, or attached to, cellular or basement membranes of presynaptic cholinergic neurons and postsynaptic cholinoceptive cells within the neuromuscular junction. Best regards
page 240 in: Lawrence I. Gilbert, Sarjeet S. Gill. 2010. Insect Pharmacology: Channels, Receptors, Toxins and Enzymes Academic Press,Pp.392. ISBN 0123814480, 9780123814487