Abstract
The epithelial cells of the human intestine exhibit a cholinesterase activity which is restricted to the apex of the villi. This activity displays a maximum in the colon and a minimum in the jejunum. Contrary to most of the studied vertebrates, the human cells present both acetylcholinesterase and butyrylcholinesterase activities, acetylcholinesterase being predominant in all the intestinal segments: duodenum, jejunum, ileum and colon. Like in the other vertebrates, only globular forms are identified by sucrose gradient centrifugation. However, the simultaneous presence, on the one hand of three globular forms (G1, G2 and G4) and, on the other hand of soluble as well as detergent-soluble molecular species seems to be a particular feature of the human cells.
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Abbreviations
- ChE:
-
Cholinesterases
- AChE:
-
Acetylcholinesterase
- BuChE:
-
Butyrylcholinesterase
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Sine, JP., Ferrand, R., Cloarec, D. et al. Human intestine epithelial cell acetyl- and butyrylcholinesterase. Mol Cell Biochem 108, 145–149 (1991). https://doi.org/10.1007/BF00233119
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DOI: https://doi.org/10.1007/BF00233119