(57) Abstract This invention regards the DNA construction body and its production manner which can produce the antimicrobial material efficiently from the microbe. This invention furthermore regards the useful vector because of this DNA construction body. The DNA construction body which relates to this invention becomes gene the whole purF, including the second gene which the first gene, and the antimicrobial peptide which the part or that derivative of that the code are done the code is done. When you follow this invention, as for antimicrobial peptide: Gene the whole purF, including the second gene which the first gene, and the antimicrobial peptide which the part or that derivative of that the code are done the code is done, it prepares the manifestation vector which includes the DNA construction body which becomes; The bacterial host cell character is converted with the vector which catches; Culturing this transformation cell, it makes the above-mentioned DNA construction body reveal; And the above-mentioned antimicrobial peptide is recovered; It can produce in large quantities with process.
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