Esterases in histochemistry and ultrahistochemistry

Synopsis The histochemical identification of individual esterases is a problem that has not yet been overcome. Inhibitors and different substrates reveal different patterns of distribution. 8-hydroxyquinoline acetate is a useful substrate in ultrahistochemistry. There is evidence of a relationship between esterase distribution and function.ACTH adrenocorticotropic hormone - 5Bri–O-2 5-bromoindoxyl acetate - 5Br–4ClI–O-2 5-bromo-4-chloro indoxyl acetate - cAMP cyclic adenosine monophosphate - DFP di-isopropyl-fluorophosphate - hCG human chorion gonadotropin - HS-2/4 thiol acetate/butyrate - I-O-2/4 indoxyl acetate/butyrate - N-O-2/3/4 -naphthyl acetate/propionate/butyrate - N-O-2 -naphthyl acetate - N-S-2/9 -naphthyl thiolacetate/nonanoate - NAS-O-2 naphthol AS acetate - NASD-O-2 naphthol AS-D acetate - 4NP-O-2/3 p-nitrophenyl acetate/propionate - 4NP-S-2 p-nitrophenyl thiol acetate - P-O-2 phenyl acetate - Q-O-2/4 8-hydroxyquinoline acetate/butyrate - Q-S-2/4 8-mercaptoquinoline acetate/butyrate - TBA-S-2/9 -thiolbenzanilide acetate/nonanoate - TSH thyroid-stimulating hormone