Structural analyses of a channel-forming fragment of colicin E1 incorporated into lipid vesicles. Fourier-transform infrared and tryptophan fluorescence studies.

Abstract

Structural changes upon binding to the membrane of a COOH-terminal channel-forming thermolytic fragment of colicin E1 have been studied by means of a variety of spectroscopic techniques. Circular dichroism measurements show that the thermolytic fragment predominantly takes a helical structure in aqueous and detergent solutions. Fourier transform infrared… (More)

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