Structural effects of a basic peptide on the organization of dipalmitoylphosphatidylcholine/dipalmitoylphosphatidylserine membranes: A fluorescent resonance energy transfer study

Article Abstract:

The effect of a model basic peptide, hexalysiltryptophan, on the organization of dipalmitoylphos-phatidylcholine/dipalmitoylphosphatidylserine unilamellar vesicles by means of fluorescent resonance energy transfer (FRET) between fluorescently labeled phospholipids is studied. Several FRET theoretical models assuming different bilayer geometries and probe distributions are fitted to the time-resolved data.

Peptides, Lipid membranes, Energy transformation

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Membrane probe distribution heterogeneity: a resonance energy transfer study

Article Abstract:

Probe distribution heterogeneity was studied in model membranes such as large vesicles of dioleoyphosphatidylcholine (DOCP) using resonance energy transfer (ET). The results indicate that the pair is well behaved, namely, the linearity of the c parameter versus acceptor density plot, used to obtain the average area per lipid.

Choline

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Resonance energy transfer in heterogeneous planar and bilayer systems: theory and simulation

Article Abstract:

The problem of resonance energy transfer in planar and bilayer geometries with heterogenous chromophore distributions is studied. It is shown that a significant number of heterogeneity cases can be adequately described by a sum of two Gaussians acceptor concentration distribution.

Chromophores

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