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  • Title: Design and characterization of novel hybrid peptides from LFB15(W4,10), HP(2-20), and cecropin A based on structure parameters by computer-aided method.
    Author: Tian ZG, Dong TT, Teng D, Yang YL, Wang JH.
    Journal: Appl Microbiol Biotechnol; 2009 Apr; 82(6):1097-103. PubMed ID: 19148638.
    Abstract:
    The increasing problem of antibiotic resistance among pathogenic bacteria requires development of new antimicrobial agents. The pivotal assets of the antimicrobial peptide include potential for rapid bactericidal activity and low propensity for resistance. The four new antimicrobial hybrid peptides were designed based on peptides LFB15(W4,10), HP(2-20), and cecropin A according to the structure-activity relationship of the amphipathic and cationic antimicrobial peptides. Their structural parameters were accessed by bioinformatics tools, and then two hybrids with the most potential candidates were synthesized. The hybrid peptide LH28 caused an increase in antibiotic activity (MIC(50)=1.56-3.13 microM) against given bacterial strains and did not cause obvious hemolysis of rabbit erythrocytes at concentration of 3.13 microM with effective antimicrobial activity. The results demonstrate that evaluating the structural parameters could be useful for designing novel antimicrobial peptides.
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