Single channels and surface potential of linear gramicidins.
The single channel data for 4 different linear gramicidins containing either 4 Trp, 4 Phe, 4 Tyr or TyrBzl have been analyzed on the basis of 3 barriers-2 sites model. They form 2 families which differ by their single channel behavior and thus different energy profiles of the channel. A relationship between the surface potential and the entry barrier is proposed.
Heitz
F
F
Laboratoire de Physico-Chimie des Systèmes Polyphasés, CNRS UA330, Montpellier, France.
Van Mau
N
N
Bennes
R
R
Daumas
P
P
Trudelle
Y
Y
D003217:Conductometry; D004734:Energy Metabolism; D006096:Gramicidin; D007473:Ion Channels; D008432:Mathematical Computing; D008564:Membrane Potentials; D008567:Membranes, Artificial; D013329:Structure-Activity Relationship
D007473:Ion Channels; D008567:Membranes, Artificial; D006096:Gramicidin