摘要
链霉菌基因组中常见连续两个基因重叠的现象(如ATGA),这为基因的同框敲除或取代研究带来很大困扰。对常用的报告基因——阿泊拉霉素抗性基因的5′端进行定点突变,使之可应用于这种链霉菌重叠基因的同框取代,功能验证表明,点突变没有影响到这个报告基因的生物学活性。
The gene overlapping (ATGA) is widespread in streptomycetes, making it difficult to perform in-frame deletion or replacement for functional analysis of target genes. Here site-specific mutations were incorporated into the 5' terminal of apramycin-resistant gene, allowing it suitable for in-frame replacement of genes overlapped with upstream genes by ATGA. The result proved that apramycin-resistant gene with site mutagenesis was still functional to be used for gene replacement of overlapping genes in streptomycetes.
出处
《湖北农业科学》
北大核心
2008年第10期1104-1107,共4页
Hubei Agricultural Sciences
基金
国家自然科学基金项目(30770036)
教育部高等学校博士学科点专项科研基金项目(20070511004)
教育部留学回国人员科研启动基金资助项目