申请人:Mercian Corporation
公开号:US05322937A1
公开(公告)日:1994-06-21
A DNA fragment or a restriction enzyme-digested DNA fragment, the DNA fragment containing a gene, acyA, encoding a 3-acylation enzyme for macrolide antibiotics, characterized by being derived from a strain belonging to the genus Streptomyces, having a size of about 1.8 kb or about 3.2 kb, and having a DNA base sequence shown in a restriction enzyme map shown in FIG. 1(A) or FIG. 1(B), respectively, in the attached drawing. 3-Acylated macrolide antibiotics can be produced advantageously using macrolide antibiotics-producing bacteria transformed with vector plasmids having inserted therein the DNA fragment.
一段DNA片段或经过限制性酶切割的DNA片段,其中包含编码3-酰化酶的基因acyA,用于大环内酯类抗生素,其特征是源自属于链霉菌属的菌株,大小约为1.8 kb或3.2 kb,并且具有在附图中所示的限制性酶图谱中显示的DNA碱基序列,分别为图1(A)或图1(B)。使用插入有该DNA片段的载体质粒转化的大环内酯类抗生素生产菌株,可以优势地生产3-酰化大环内酯类抗生素。