POTASSIUM CURRENTS FROM ISOLATED FROG LENS EPITHELIAL-CELLS

被引:4
作者
COOPER, K
WATSKY, M
RAE, J
机构
[1] MAYO CLIN & MAYO FDN,DEPT PHYSIOL & BIOPHYS,ROCHESTER,MN 55905
[2] MAYO CLIN & MAYO FDN,DEPT OPHTHALMOL,ROCHESTER,MN 55905
关键词
FROG LENS EPITHELIUM; K-CURRENT; RESTING VOLTAGE; ION TRANSPORT; VOLTAGE CLAMP; PATCH CLAMP;
D O I
10.1016/0014-4835(92)90012-H
中图分类号
R77 [眼科学];
学科分类号
100212 ;
摘要
Using the perforated patch version of whole-cell recording, we have measurd currents from isolated frog lens epithelial cells. Three types of currents were seen. A time-independent outwardly rectifying potassium current was identified that sets the resting voltage. This potassium current differs significantly from any of the potassium currents recorded with the whole-cell technique in mammalian lens epithelial cells. In addition to the potassium current, the two other currents present were both outwardly rectifying: one was time-independent while the other showed distinct activation. © 1992.
引用
收藏
页码:861 / 868
页数:8
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