期刊
PEPTIDES
卷 36, 期 2, 页码 266-271出版社
ELSEVIER SCIENCE INC
DOI: 10.1016/j.peptides.2012.05.009
关键词
Plant antimicrobial peptides; Taraxacum officinale Wigg.; Plant immunity
资金
- Russian Foundation [12-04-00190-a, 12-04-00117-a]
- Russian Federal Programs of the Ministry of Education and Science [16.512.11.2156, 16.740.11.0424]
Three novel antimicrobial peptides designated ToAMP1, ToAMP2 and ToAMP3 were purified from Taraxacurn officinale flowers. Their amino acid sequences were determined. The peptides are cationic and cysteine-rich and consist of 38, 44 and 42 amino acid residues for ToAMP1, ToAMP2 and ToAMP3, respectively. Importantly, according to cysteine motifs, the peptides are representatives of two novel previously unknown families of plant antimicrobial peptides. ToAMP1 and ToAMP2 share high sequence identity and belong to 6-Cys-containing antimicrobial peptides, while ToAMP3 is a member of a distinct 8-Cys family. The peptides were shown to display high antimicrobial activity both against fungal and bacterial pathogens, and therefore represent new promising molecules for biotechnological and medicinal applications. Crown Copyright (C) 2012 Published by Elsevier Inc. All rights reserved.
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