Minoura N, Higuchi M, Ohmori T, Yamaguchi T
National Institute of Materials and Chemical Research, Ibaraki, Japan.
Biochem Biophys Res Commun. 1998 Aug 28;249(3):601-4. doi: 10.1006/bbrc.1998.9203.
Oscillation of membrane potential across a tri-block copolypeptide membrane composed of (Glu)x-(Leu)y-(Glu)x (x = 0.18 and y = 0.64) was observed under an electrical current, when the membrane was placed between equimolar aqueous salt solutions. The amplitude of the oscillation was influenced by the type of cation and anion in the external salt solution, and the amplitude was in the sequence: K+ > Na+ > Cs+ > Ca2+ and Cl- > Br-. The frequencies of the oscillations were in the range 0.1 to 5 Hz, and were also slightly influenced by the type of cation and anion.
当由（Glu）x -（Leu）y -（Glu）x（x = 0.18且y = 0.64）组成的三嵌段共多肽膜置于等摩尔盐水溶液之间时，在电流作用下观察到该膜上膜电位的振荡。振荡幅度受外部盐溶液中阳离子和阴离子类型的影响，幅度顺序为：K +＞Na +＞Cs +＞Ca2 +且Cl -＞Br -。振荡频率在0.1至5赫兹范围内，也受阳离子和阴离子类型的轻微影响。
