Publication

The orientation of melittin in lipid membranes. A polarized infrared spectroscopy study

Horst Arthur Vogel
1983
Journal Articles

Abstract

Polarized IR spectra of melittin (I) incorporated into macroscopically oriented lipid membranes are reported. From the linear dichroism of the amide I and amide II vibrational bands, the spatial orientation of I helices was detd. as being preferentially parallel to the membrane normal under exptl. condition of low water content and an ordered lipid phase. The data are in accord with an orientation of membrane-incorporated I whereby the hydrophobic part of the polypeptide either spans the bilayer in the form of 2 bent helix segments or is folded back within 1 monolayer in the form of a wedge. [on SciFinder (R)]

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https://infoscience.epfl.ch/entities/publication/c8de895d-12ca-4933-807c-6dacdc453ebc

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Horst Arthur Vogel
1983
Journal Articles

Abstract

Official source

https://infoscience.epfl.ch/entities/publication/c8de895d-12ca-4933-807c-6dacdc453ebc

About this result

Related concepts (32)

Circular dichroism

Circular dichroism (CD) is dichroism involving circularly polarized light, i.e., the differential absorption of left- and right-handed light. Left-hand circular (LHC) and right-hand circular (RHC) polarized light represent two possible spin angular momentum states for a photon, and so circular dichroism is also referred to as dichroism for spin angular momentum. This phenomenon was discovered by Jean-Baptiste Biot, Augustin Fresnel, and Aimé Cotton in the first half of the 19th century.

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The orientation of melittin in lipid membranes. A polarized infrared spectroscopy study

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