Abstract: Temporin-SHf is a kind of small molecular peptide with broad-spectrum antimicrobial activity, the expression of Temporin-SHf in Pichia pastoris could provide reference for its industrial production. The pPIC9K-Temporin-SHf expression vector was constructed and transformed into P. pastoris GS115 strain, which was then verified by PCR and RT-PCR, and the induction conditions were optimized and antibacterial activity was analyzed in vitro. The results showed that the antimicrobial peptide Temporin-SHf was expressed successfully in P. pastoris, which had antibacterial activity on Staphylococcus aureus and Escherichia coli strains. And the optimum expression conditions of Temporin-SHf were as follows: temperature 28 ℃, initial induction OD600=1.5, adding 0.5% (volume fraction) methanol, and induced for 72 h. In this study, a novel antimicrobial peptide Temporin-SHf was expressed in P. pastoris for the first time and the induction conditions were optimized, which provided theoretical base for the industrial production.
LUO X, LIU W, QIN Y, et al. Design, characterization and antimicrobial activity of novel antimicrobial peptides from Temporin-Pta[J]. Journal of Biomedical Nanotechnology, 2017, 13(9):1 124-1 133.
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