Gliozzi A, Robello M, Fittabile L, Relini A, Gambacorta A. Valinomycin acts as a channel in ultrathin lipid membranes.
BIOCHIMICA ET BIOPHYSICA ACTA 1996;
1283:1-3. [PMID:
8765086 DOI:
10.1016/0005-2736(96)00101-0]
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Abstract
When the thickness of monolayer membranes formed by bolaform archaeal lipids is reduced to the approximate length of two valinomycin molecules, the zero-current conductance does not show any more a linear dependence on valinomycin concentration; instead, a quadratic behaviour is observed. This suggests that a dimer permeation pore is formed and therefore the conduction mechanism changes from carrier to channel.
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