Lipid domain separation, bilayer thickening and pearling induced by the cell penetrating peptide penetratin

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TitleLipid domain separation, bilayer thickening and pearling induced by the cell penetrating peptide penetratin
Publication TypeJournal Article
Year of Publication2010
AuthorsLamaziere A, Maniti O, Wolf C, Lambert O, Chassaing G, Trugnan G, Ayala-Sanmartin J
JournalBiochimica Et Biophysica Acta-Biomembranes
Volume1798
Issue12
Pagination2223-2230
Date PublishedDec
ISBN Number0005-2736
Accession NumberISI:000284392900007
Abstract

Protein membrane transduction domains are able to translocate through cell membranes. This capacity resulted in new concepts on cell communication and in the design of vectors for internalization of active molecules into cells. Penetratin crosses the plasma membrane by a receptor and metabolic energy-independent mechanism which is at present unknown. A better knowledge of its interaction with phospholipids will help to understand the molecular mechanisms of cell penetration. Here, we investigated the role of lipid composition on penetratin induced membrane perturbations by X-ray diffraction, microscopy and P-31-NMR. Penetratin showed the ability to induce phospholipid domain separation, membrane bilayer thickening, formation of vesicles, membrane undulations and tubular pearling. These data demonstrate its capacity to increase membrane curvature and suggest that dynamic phospholipid-penetratin complexes can be organized in different structural arrangements. These properties and their implications in peptide membrane translocation capacity are discussed. (C) 2009 Elsevier B.V. All rights reserved.

URL<Go to ISI>://000284392900007
DOI10.1016/j.bbamem.2009.12.024
Short TitleLipid domain separation, bilayer thickening and pearling induced by the cell penetrating peptide penetratin
Unit: 
UMR 8640