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Characterization of multiple forms of acetylcholinesterase in electric organ of Torpedo marmorata

MPG-Autoren
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Witzemann,  Veit
Department of Molecular Neurobiology, Max Planck Institute for Medical Research, Max Planck Society;
Working Group Witzemann / Koenen, Max Planck Institute for Medical Research, Max Planck Society;
Molecular anatomy of the neuromuscular junction, Max Planck Institute for Medical Research, Max Planck Society;
Department of Cell Physiology, Max Planck Institute for Medical Research, Max Planck Society;

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Zitation

Witzemann, V. (1980). Characterization of multiple forms of acetylcholinesterase in electric organ of Torpedo marmorata. Neuroscience Letters, 20(3), 277-282. doi:10.1016/0304-3940(80)90160-3.


Zitierlink: https://hdl.handle.net/21.11116/0000-0001-198F-3
Zusammenfassung
Three molecular forms of acetylcholinesterase can be isolated by velocity sedimentation from extracts of electric organ from Torpedo marmorata. Their apparent sedimentation coefficients are 6 S, 13 S and 17 S. Characteristic differences are found with regard to their solubilization properties. The 13 S and 17 S forms are extracted only in the presence of high salt concentrations. At low ionic conditions only a fraction of the 6 S form is solubilized. Quantitative recovery of this form can be achieved in the presence of Triton X−100 at concentrations of 0.5−1%. The relative ratio of the various forms changes during the development of the fish