Evaluation of Antifungal Activity of Defensin (Tfgd۲) Using Its Heterologous Expression in E. coli
Publish place: Journal of Genetic Resources، Vol: 7، Issue: 1
Publish Year: 1400
نوع سند: مقاله ژورنالی
زبان: English
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شناسه ملی سند علمی:
JR_SGR-7-1_010
تاریخ نمایه سازی: 6 اردیبهشت 1400
Abstract:
Defensins are a superfamily of antimicrobial peptides that can inhibit the growth of a broad spectrum of fungi. To evaluate the antifungal activity of Tfgd۲ gene of Trigonella foenum graecum, the coding region of this gene in the cDNA form was subcloned in the expression vector pET۲۶b (+) and the construct was designated as pETSH۱. The obtained construct expressing the recombinant protein with a hexahistidine tag at the C-terminal end transformed into the E. coli BL۲۱ (DE۳). Taguchi test applied for optimizing the protein expression and the expressed protein TFGD۲ confirmed by SDS-PAGE and western blotting. The recombinant TFGD۲ protein was purified using affinity chromatography with a Ni-NTA column. In vitro assay indicated a broad spectrum of antifungal activity of purified expressed recombinant TFGD۲ against different fungal phytopathogens, such as Fusarium oxysporum, Rhizoctonia solani, Sclerotinia sclerotiorum, Alternaria solani, and Verticillium dahliae.
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Authors
Shiva Shiehbeiki
Department of Plant Biotechnology, National Institute of Genetic Engineering and Biotechnology (NIGEB), Tehran, Iran.
Mostafa Motallebi
Department of Plant Biotechnology, National Institute of Genetic Engineering and Biotechnology (NIGEB), Tehran, Iran.
Mohammad Zamani
Department of Plant Biotechnology, National Institute of Genetic Engineering and Biotechnology (NIGEB), Tehran, Iran.
Esmat Jourabchi
Department of Plant Biotechnology, National Institute of Genetic Engineering and Biotechnology (NIGEB), Tehran, Iran.
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