2014
DOI: 10.1007/s00726-014-1833-9
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Melittin peptides exhibit different activity on different cells and model membranes

Abstract: was increased. The native peptide and the MLT-P14C monomer were mainly unstructured in buffer while the dimer adopted a helical conformation. In the presence of neutral and negatively charged vesicles, the helical content of the three peptides was significantly increased. The lytic activity, therefore, is not correlated to the secondary structure of the peptides and, more particularly, on the propensity to adopt helical conformation.

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Cited by 65 publications
(58 citation statements)
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References 51 publications
(44 reference statements)
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“…Such preference was suggested to correlate with higher amount of negatively charged lipids in Gram-positive when compared with Gram-negative bacteria (24). Mac1 is less efficient in inhibiting the growth of bacteria than the bee venom peptide melittin, also known for its antimicrobial activity (25), with the latter inhibiting bacterial growth at 2 and 0.5 M against E. coli and S. aureus, respectively (Table 1). Notably, a 4-fold greater potency against Gram-positive was also observed.…”
Section: Mac1 Has Antimicrobial Activity Against S Aureus and E Colmentioning
confidence: 99%
See 1 more Smart Citation
“…Such preference was suggested to correlate with higher amount of negatively charged lipids in Gram-positive when compared with Gram-negative bacteria (24). Mac1 is less efficient in inhibiting the growth of bacteria than the bee venom peptide melittin, also known for its antimicrobial activity (25), with the latter inhibiting bacterial growth at 2 and 0.5 M against E. coli and S. aureus, respectively (Table 1). Notably, a 4-fold greater potency against Gram-positive was also observed.…”
Section: Mac1 Has Antimicrobial Activity Against S Aureus and E Colmentioning
confidence: 99%
“…Mac1 and melittin have been used in many experiments without showing any solubility or secondary structure perturbations in buffer with up to 150 mM NaCl (14,15,25). Therefore, it may be that bacteria are able to withstand harsh membrane damage in high salt (LB) compared with low salt growth medium (MHB).…”
Section: Mac1 Has Antimicrobial Activity Against S Aureus and E Colmentioning
confidence: 99%
“…Topical cosmetic products containing bee venom are gaining popularity for the treatment of acne and skin diseases. However, the cytotoxicity of melittin limits the amount of melittin that can be used in cosmetic formulations (Han et al, 2013;Jamasbi et al, 2014). Commercial cosmetic products compromise cytotoxicity simply by reducing the amount of melittin which also leads to an input cost reduction.…”
Section: Discussionmentioning
confidence: 99%
“…The anti-microbial and anti-inflammatory activities of melittin have raised a commercial interest in treating bacteria-caused skin problems and diseases. However, great care needs to be taken over the amount incorporated into commercial products due to the cytotoxicity of melittin (Jamasbi et al, 2014). Reliable quantification assays are needed for melittin which specify the endogenous levels in bee venom, and which specify the supplemental levels of melittin used in cosmetic formulations.…”
Section: Melittin Quantification By Elisamentioning
confidence: 99%
“…Melittin, a 26 residue cationic amphipathic peptide with the sequence GIGAVLKVLTTGLPALISWIKRKRQQ, is the principal toxic component of bee venom [16] with antimicrobial, antiviral, antifungal, anticancer [319], and anti-inflammatory properties [74,320]. The melittin monomer can be divided into three regions: 1.…”
Section: Melittinmentioning
confidence: 99%