Deprecated: Implicit conversion from float 217.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 217.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 217.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 217.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 217.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 217.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 217.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Warning: imagejpeg(C:\Inetpub\vhosts\kidney.de\httpdocs\phplern\27832293
.jpg): Failed to open stream: No such file or directory in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 117 Eur+Biophys+J
2017 ; 46
(4
): 375-382
Nephropedia Template TP
gab.com Text
Twit Text FOAVip
Twit Text #
English Wikipedia
Modulating charge-dependent and folding-mediated antimicrobial interactions at
peptide-lipid interfaces
#MMPMID27832293
Iavicoli P
; Rossi F
; Lamarre B
; Bella A
; Ryadnov MG
; Calzolai L
Eur Biophys J
2017[May]; 46
(4
): 375-382
PMID27832293
show ga
Peptide-lipid interactions support a variety of biological functions. Of
particular interest are those that underpin fundamental mechanisms of innate
immunity that are programmed in host defense or antimicrobial peptide sequences
found virtually in all multicellular organisms. Here we synthetically modulate
antimicrobial peptide-lipid interactions using an archetypal helical
antimicrobial peptide and synthetic membranes mimicking bacterial and mammalian
membranes in solution. We probe these interactions as a function of
membrane-induced folding, membrane stability and peptide-lipid ratios using a
correlative approach encompassing light scattering and spectroscopy measurements
such as circular dichroism spectroscopy, fluorescence and nuclear magnetic
resonance spectroscopy. The peptide behavior is assessed against that of its
anionic counterpart having similar propensities for ?-helical folding. The
results indicate strong correlations between peptide folding and membrane type,
supporting folding-responsive binding of antimicrobial peptides to bacterial
membranes. The study provides a straightforward approach for modulating
structure-activity relationships in the context of membrane-induced antimicrobial
action, thus holding promise for the rational design of potent antimicrobial
agents.