Effect of phospholipid surface charge on the conductance and gating of a Ca2+-activated K+ channel in planar lipid bilayers

1985 ◽  
Vol 83 (3) ◽  
pp. 273-282 ◽  
Author(s):  
Edward Moczydlowski ◽  
Osvaldo Alvarez ◽  
Cecilia Vergara ◽  
Ramon Latorre
1983 ◽  
Vol 245 (1) ◽  
pp. C151-C156 ◽  
Author(s):  
M. T. Nelson ◽  
M. Roudna ◽  
E. Bamberg

Ion channels from a rat brain preparation enriched in presynaptic nerve terminals (synaptosomes) were incorporated into planar lipid bilayers. Experiments examined macroscopic (channel-ensemble) currents as well as single-channel currents. Four single-channel conductances (ranging from 10 to 40 pS) were usually observed, each with distinct kinetic properties. All the observed channels selected for K+ over Cl-. These K+ channels may contribute to the resting K+ conductance of brain nerve terminals. Furthermore, this report demonstrates that the properties of ion channels from mammalian brain can be studied in planar lipid bilayers and suggests that this system can be readily extended to many additional investigations on the electrical properties of brain membranes.


2008 ◽  
Vol 10 (10) ◽  
pp. 1509-1512 ◽  
Author(s):  
Shunsuke Ozaki ◽  
Shiho Aoki ◽  
Takao Hibi ◽  
Kenji Kano ◽  
Osamu Shirai

1984 ◽  
Vol 45 (1) ◽  
pp. 73-76 ◽  
Author(s):  
Cecilia Vergara ◽  
Edward Moczydlowski ◽  
Ramon Latorre

1984 ◽  
Vol 46 (6) ◽  
pp. 831-835 ◽  
Author(s):  
L. Olans ◽  
S. Sariban-Sohraby ◽  
D.J. Benos

2015 ◽  
Vol 30 (3) ◽  
pp. 1306-1316 ◽  
Author(s):  
Kunitoshi Uchida ◽  
Lusine Demirkhanyan ◽  
Swapna Asuthkar ◽  
Alejandro Cohen ◽  
Makoto Tominaga ◽  
...  

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