An antifungal peptide from Phaseolus vulgaris cv. brown kidney bean
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摘要A 5.4-kDa antifungal peptide, with an N-terminal sequence highly homologous to defensins and inhibitory activity against Mycosphaerella arachidicola (IC50 3 M), Setospaeria turcica and Bipolaris maydis, was isolated from the seeds of Phaseolus vulgaris cv. brown kidney bean. The peptide was purified by employing a protocol that entailed adsorption on Affi-gel blue gel and Mono S and finally gel filtration on Superdex 75. The antifungal activity of the peptide against M. arachidicola was stable in the pH range 312 and in the temperature range 0C to 80C. There was a slight reduction of the antifungal activity at pH 2 and 13, and the activity was indiscernible at pH 0, 1, and 14. The activity at 90C and 100C was slightly diminished. Deposition of Congo red at the hyphal tips of M. arachidicola was induced by the peptide indicating inhibition of hyphal growth. The lack of antiproliferative activity of brown kidney bean antifungal peptide toward tumor cells, in contrast to the presence of such activity of other antifungal peptides, indicates that different domains are responsible for the antifungal and antiproliferative activities.
著者Chan YS, Wong JH, Fang EF, Pan WL, Ng TB
期刊名稱Acta Biochimica et Biophysica Sinica
詳細描述To ORKTS: doi: 10.1093/abbs/gms003
出版年份2012
月份4
日期1
卷號44
期次4
出版社Oxford University Press (OUP): Policy B - Oxford Open Option D / Wiley: No OnlineOpen
頁次307 - 315
國際標準期刊號1672-9145
電子國際標準期刊號1745-7270
語言英式英語
關鍵詞antifungal peptide; defensin-like; isolation; Phaseolus vulgaris
Web of Science 學科類別Biochemistry & Molecular Biology; BIOCHEMISTRY & MOLECULAR BIOLOGY; Biophysics; BIOPHYSICS

上次更新時間 2021-23-02 於 00:40