@misc{gofman_interaction_of_2010, author={Gofman, Y.,Linser, S.,Rzeszutek, A.,Shental-Bechor, D.,Funari, S.S.,Ben-Tal, N.,Willumeit, R.}, title={Interaction of an Antimicrobial Peptide with Membranes: Experiments and Simulations with NKCS}, year={2010}, howpublished = {journal article}, doi = {https://doi.org/10.1021/jp909154y}, abstract = {We used Monte Carlo simulations and biophysical measurements to study the interaction of NKCS, a derivative of the antimicrobial peptide NK-2, with a 1-palmitoyl-2-oleoyl-sn-glycero-3-phosphoethanolamine (POPE) membrane. The simulations showed that NKCS adsorbed on the membrane surface and the dominant conformation featured two amphipathic helices connected by a hinge region. We designed two mutants in the hinge to investigate the interplay between helicity and membrane affinity. Simulations with a Leu-to-Pro substitution showed that the helicity and membrane affinity of the mutant (NKCS-[LP]) decreased. Two Ala residues were added to NKCS to produce a sequence that is compatible with a continuous amphipathic helix structure (NKCS-[AA]), and the simulations showed that the mutant adsorbed on the membrane surface with a particularly high affinity. The circular dichroism spectra of the three peptides also showed that NKCS-[LP] is the least helical and NKCS-[AA] is the most. However, the activity of the peptides, determined in terms of their antimicrobial potency and influence on the temperature of the transition of the lipid to hexagonal phase, displayed a complex behavior: NKCS-[LP] was the least potent and had the smallest influence on the transition temperature, and NKCS was the most potent and had the largest effect on the temperature.}, note = {Online available at: \url{https://doi.org/10.1021/jp909154y} (DOI). Gofman, Y.; Linser, S.; Rzeszutek, A.; Shental-Bechor, D.; Funari, S.; Ben-Tal, N.; Willumeit, R.: Interaction of an Antimicrobial Peptide with Membranes: Experiments and Simulations with NKCS. The Journal of Physical Chemistry B. 2010. vol. 114, no. 12, 4230-4237. DOI: 10.1021/jp909154y}}