Artificial Membranes

Polarity Profiles



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Figure 1. Polarity profiles of DOPC (A) and POPG (B) bilayers. Distributions of lipid segments determined by the simultaneous analysis of X-ray and neutron scattering data (left panels). Changes of polarity parameters along the membrane normal, hydrogen bonding donor (α), acceptor (β) capacities and dipolarity/ polarizability parameter (π*), calculated as described [1] (right panels).


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Figure 2. Polarity profiles of DLPC (A), DMPC (B), DPPC (C), and DEPC (D) bilayers. Distributions of lipid segments determined from X-ray scattering data (left pannels). Changes of polarity parameters (α, β, and π*) along the membrane normal calculated as described [1] (right pannels).



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Figure 3. Polarity profiles of DHPC (A), DPhyPC (B) bilayers and of an eularyotic PM mimic, LM3 bilayer (C). Distributions of lipid segments determined from X-ray scattering data (left panels). Changes of polarity parameters (α, β, and π*) along the membrane normal calculated as described [1] (right pannels).



References


  1. Pogozheva ID, Tristram-Nagle S, Mosberg HI, Lomize AL: Structural adaptations of proteins to different biological membranes. Biochim Biophys Acta 2013, 1828(11):2592-2608.[PubMed]