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The Specific Genes for Lantibiotic Mutacin II Biosynthesis in Streptococcus mutans T8 Are Clustered and Can Be Transferred En Bloc

机译:变形链球菌T8中羊毛硫抗生素突变蛋白II生物合成的特定基因是聚集的,可以整批转移。

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Mutacin II is a ribosomally synthesized peptide lantibiotic produced by group II Streptococcus mutans. DNA sequencing has revealed that the mutacin II biosynthetic gene cluster consists of seven specific open reading frames: a regulator (mutR), the prepromutacin structural gene (mutA), a modifying protein (mutM), an ABC transporter (mutT), and an immunity cluster (mutFEG). Transformations of a non-mutacin-producing strain, S. mutans UA159, and a mutacin I-producing strain, S. mutans UA140, with chromosomal DNA from S. mutans T8 with anaphIII marker inserted upstream of the mutacin II structural gene yielded transformants producing mutacin II and mutacins I and II, respectively.
机译:Mutacin II是由II组变形链球菌产生的核糖体合成肽羊毛硫抗生素。 DNA测序表明,诱变蛋白II生物合成基因簇由七个特定的开放阅读框组成:调节剂(mutR),前promutacin结构基因(mutA),修饰蛋白(mutM),ABC转运蛋白(mutT)和免疫力集群(mutFEG)。用来自诱变链球菌T8的染色体DNA插入带有诱变蛋白II结构基因上游的anaphIII标记,转化不产生诱变酶的菌株S. mutans UA159和产生诱变蛋白I的菌株S. mutans UA140。突变蛋白II和突变蛋白I和II。

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