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Jian-Jiang Hao, Chuan-dong Geng, Wei-jun Xie, Zhen-zhen Gong, Wang-Yi Liu, En-duo Wang

Isolation and Characterization of Viridin, a New 65 kDa Antifungal Protein from the Mould Trichoderma viride

A new extracellular antifungal protein with a yield of 10 mg per liter was isolated from the culture medium of the mould Trichoderma viride. The protein, which we named viridin, was purified by carboxymethyl-cellulose cation-exchange chromatography and Superose 12 HR 10/30 high-performance liquid chromatography. Viridin, a basic protein of approximately 65 kDa as determined by SDS-PAGE, inhibits the growth of the cotton pathogen Verticillum dahliae, the IC₅₀ being 6 ?M.

Biological Chemistry, Walter de Gruyter

Print ISSN: 1431-6730
Volume: 380, 10/1999
Pages: 1243 - 1245

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