1887

Abstract

N28b synthesized and secreted a bacteriocin, with a molecular mass of 45 kDa, which was capable of inhibiting the growth of . The expression of this bacteriocin was negligible unless induced with mitomycin C. The genes encoding the bacteriocin were cloned in plasmid pBR328. harbouring recombinant plasmid pBA189 or pBA289 expressed the N28b bacteriocin. The nucleotide sequence of the gene ( N28b bacteriocin structural gene) was determined. The predicted amino acid sequence of the carboxy-terminal part of the bacteriocin 28b had a high degree of similarity to the pore-forming domains of colicins A, E1, B, N, Ia and Ib.

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1992-08-01
2021-04-20
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