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Campesin, a thermostable antifungal peptide with highly potent antipathogenic activities

Paper ID Volume ID Publish Year Pages File Format Full-Text
21996 43247 2009 7 PDF Available
Title
Campesin, a thermostable antifungal peptide with highly potent antipathogenic activities
Abstract

An 9.4-kDa antifungal peptide designated as campesin was isolated from seeds of the cabbage Brassica campestris. The isolation procedure involved affinity chromatography on Affi-gel blue gel, ion exchange chromatography on Q-Sepharose and Mono S, and gel filtration on Superdex 75 and Superdex Peptide. The peptide was adsorbed on the first three chromatographic media. It exerted an inhibitory action on mycelial growth including Fusarium oxysporum and Mycosphaerella arachidicola, with an IC50 of 5.1 μM and 4.4 μM, respectively. The peptide was characterized by remarkable thermostability and pH stability. It inhibited proliferation of HepG2 and MCF cancer cells with an IC50 of 6.4 μM and 1.8 μM, and the activity of HIV-1 reverse transcriptase with an IC50 of 3.2 μM. It demonstrated lysolecithin binding activity.

Keywords
Antifungal peptide; Isolation; Chinese cabbage; Brassica campestris; Brassicaceae
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Campesin, a thermostable antifungal peptide with highly potent antipathogenic activities
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Publisher
Database: Elsevier - ScienceDirect
Journal: Journal of Bioscience and Bioengineering - Volume 108, Issue 3, September 2009, Pages 259–265
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
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Price was $35.95
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