using selective inhibitors ( iso-ompa , eserine , bnpp and bw-284c51 ) it was shown that the hydrolysis of acetylthiocholine and butyrylthiocholine in untreated native serum had properties of acetylcholinesterase ( ec 3.1.1.7 ) , butyrylcholinesterase ( ec 3.1.1.8 ) and also some properties of carboxylesterase ( ec 3.1.1.1 ) .
C0001044
acetylcholinesterase
C0008429
butyrylcholinesterase