Heat-induced association of Gramicidin A with lyso-lecithin micelles results in the formation of lipid bilayer structures. The capacity of the Gramicidin A peptide to transform the lysolecithin lipid structure from micelle to bilayer is considered in terms of molecular packing mechanisms and relevance to membrane processes in general. The resulting lipid-bilayer-packaged channel system has particular usefulness in characterizing channel structure and mechanism.

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