Additional electrophoretic components of cholinesterase in plasma: a phenomenon of no importance to the total plasma cholinesterase activity.

Total plasma cholinesterase and cholinesterase isozyme components were studied in 193 healthy subjects without occupational exposure to known cholinesterase inhibitors. The study showed that the four additional isozyme components, C5, C1', C6, and C7 occurred in plasma independently of each other, and that the total plasma cholinesterase activity was completely uninfluenced by the presence of any of the four components.