Vibrational circular dichroism of gramicidin D in vesicles and micelles |
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| Authors: | Zhao C Polavarapu P L |
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| Affiliation: | Department of Chemistry, Vanderbilt University, Nashville, Tennessee 37235, USA. |
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| Abstract: | The vibrational circular dichroism (VCD) and absorption spectra of gramicidin D in three model membranes (dioctadecyldimethylammonium chloride vesicles, dimyristoyl-phosphatidylcholine vesicles, and sodium dodecyl sulfate micelles) are presented. The absorption and VCD spectra suggest that the stable gramicidin D conformation in the model membranes is different from those in organic solvents. The presence of cations does not change the membrane-bound conformation of gramicidin D. |
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| Keywords: | vibrational circular dichroism absorption spectra gramicidin D vesicles micelles |
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