These results revealed that halocin c8 is cytocidal and its primary target might be located in the cell wall of the sensitive cells . two degenerate oligoxynucleotide primers ( c8 - 2 , c8 - 4 ) were designed according to the n - terminal amino acid sequence of halocin c8 根据嗜盐菌素cs的n端氨基酸序列设计了一对简并引物( cs一2 , cs礴) ,利用这对引物从as7002的总dna中扩增出halcs的部分序列。