The Journal of General Physiology, Vol 68, 397-403, Copyright © 1976 by The Rockefeller University Press
Potassium current kinetics in Myxicola axons. Effects of conditioning prepulses
CL Schauf, TL Pencek and FA Davis
In Myxicola giant axons the time constants for activation of the potassium
conductance (GK) after prepulses less depolarized than a test pulse are
comparable to the time constants for turn off of GK after prepulses more
depolarized than the same test pulse. The absolute magnitude of the
steady-state level of GK is also independent of prepulse amplitude in
Myxicola. The results are contrasted with recent observations on
voltage-clamped frog nodes.