TY - JOUR
T1 - Liposome destabilization induced by synthetic lipopeptides corresponding to envelope and non-structural domains of GBV-C/HGV virus Conformational requirements for leakage
AU - Fernández-Vidal, Mónica
AU - Rojo, Núria
AU - Herrera, Elena
AU - Gómara, María José
AU - Haro, Isabel
PY - 2008
Y1 - 2008
N2 - Liposomes have been used primarily as a model system for studying biological membranes. Numerous chemical, biochemical and biophysical methods have been used to elucidate the various aspects of the interaction between proteins or peptides and phospholipids. Having in mind the potential use of synthetic lipopeptides, as antiviral therapies and aiming for a better understanding of the molecular interaction of the GBV-C/HGV with liposomes as model membranes, epitopes of GBV-C/HGV located at the E2 (99-118) and NS3(440-460) regions were selected. Peptides were modified at the N-terminus with acyl chains of different length (C-14 and C-16) yielding the corresponding myristoil and palmytoil lipopeptides. The main aim of the present study was to get insight into the membrane-interacting properties of the above-described synthetic lipopeptides and to study their inhibition of the capacity of perturbing model membranes of fusion peptide of HIV- 1 using fluorescence spectroscopy. In an attempt to establish a relationship between peptide membrane activity and structure, we use Circular Dichroism (CD) and Fourier-Transform Infrared Spectroscopy (FTIR). (C) 2007 Elsevier B.V. All rights reserved
AB - Liposomes have been used primarily as a model system for studying biological membranes. Numerous chemical, biochemical and biophysical methods have been used to elucidate the various aspects of the interaction between proteins or peptides and phospholipids. Having in mind the potential use of synthetic lipopeptides, as antiviral therapies and aiming for a better understanding of the molecular interaction of the GBV-C/HGV with liposomes as model membranes, epitopes of GBV-C/HGV located at the E2 (99-118) and NS3(440-460) regions were selected. Peptides were modified at the N-terminus with acyl chains of different length (C-14 and C-16) yielding the corresponding myristoil and palmytoil lipopeptides. The main aim of the present study was to get insight into the membrane-interacting properties of the above-described synthetic lipopeptides and to study their inhibition of the capacity of perturbing model membranes of fusion peptide of HIV- 1 using fluorescence spectroscopy. In an attempt to establish a relationship between peptide membrane activity and structure, we use Circular Dichroism (CD) and Fourier-Transform Infrared Spectroscopy (FTIR). (C) 2007 Elsevier B.V. All rights reserved
U2 - https://doi.org/10.1016/j.bpc.2007.10.009
DO - https://doi.org/10.1016/j.bpc.2007.10.009
M3 - Article
C2 - 17988786
SN - 0301-4622
VL - 132
SP - 55
EP - 63
JO - Biophysical chemistry
JF - Biophysical chemistry
IS - 1
ER -