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Two novel antifungal peptides distinct with a five-disulfide motif from the bark of Eucommia ulmoides Oliv
Huang, RH; Xiang, Y; Liu, XZ; Zhang, Y; Hu, Z; Wang, DC
2002-06-19
Source PublicationFEBS LETTERS
ISSN0014-5793
Volume521Issue:1-3Pages:87-90
AbstractTwo antifungal peptides, named EAFP1 and EAFP2, have been purified from the bark of Eucommia ulmoides Oliv. Each of the sequences consists of 41 residues with a N-terminal blockage by pyroglutamic acid determined by automated Edman degradation in combination with the tandem mass spectroscopy and the C-terminal ladder sequencing analysis. The primary structurs all contain 10 cysteines, which are cross-linked to form five disulfide bridges with a pairing pattern (C1-C5, C2-C9, C3-C6, C4-C7, C8-C10). This is the first finding of a plant antifungal peptide with a five-disulfide motif. EAFP1 and EAFP2 show characteristics of hevein domain and exhibit chitin-binding properties similar to the previously identified hevein-like peptides. They exhibit relatively broad spectra of antifungal activities against eight pathogenic fungi from cotton, wheat, potato, tomato and tobacco. The inhibition activity of EAFP1 and EAFP2 can be effective on both chitin-containing and chitin-free fungi. The values of IC50 range from 35 to 155 mug/ml for EAFP1 and 18 to 109 mug/ml for EAFP2. Their antifungal effects are strongly antagonized by calcium ions. (C) 2002 Published by Elsevier Science B.V. on behalf of the Federation of European Biochemical Societies.
KeywordAntifungal Peptide Amino Acid Sequence Disulfide Motif Eucommia Ulmoides Oliv
Subject AreaBiochemistry & Molecular Biology ; Biophysics ; Cell Biology
Indexed BySCI
Language英语
WOS Research AreaBiochemistry & Molecular Biology ; Biophysics ; Cell Biology
WOS SubjectBiochemistry & Molecular Biology ; Biophysics ; Cell Biology
WOS IDWOS:000176443600019
Citation statistics
Cited Times:55[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.kib.ac.cn/handle/151853/14357
Collection离退休
Affiliation1.Chinese Acad Sci, Inst Biophys, Ctr Mol Biol, Beijing 100101, Peoples R China
2.Chinese Acad Sci, Kunming Inst Bot, Kunming 650204, Peoples R China
Recommended Citation
GB/T 7714
Huang, RH,Xiang, Y,Liu, XZ,et al. Two novel antifungal peptides distinct with a five-disulfide motif from the bark of Eucommia ulmoides Oliv[J]. FEBS LETTERS,2002,521(1-3):87-90.
APA Huang, RH,Xiang, Y,Liu, XZ,Zhang, Y,Hu, Z,&Wang, DC.(2002).Two novel antifungal peptides distinct with a five-disulfide motif from the bark of Eucommia ulmoides Oliv.FEBS LETTERS,521(1-3),87-90.
MLA Huang, RH,et al."Two novel antifungal peptides distinct with a five-disulfide motif from the bark of Eucommia ulmoides Oliv".FEBS LETTERS 521.1-3(2002):87-90.
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