详细信息
Streptomyces lincolnensis新遗传操作方法的建立以及lmbQ基因功能研究
Construction of the New Genetic Manipulation Method of Streptomyces lincolnensis and lmbQ Gene Function Verification
文献类型:期刊文献
中文题名:Streptomyces lincolnensis新遗传操作方法的建立以及lmbQ基因功能研究
英文题名:Construction of the New Genetic Manipulation Method of Streptomyces lincolnensis and lmbQ Gene Function Verification
作者:王增亮[1];赵群飞[2];高淑红[1];陈长华[1];刘文[2]
机构:[1]华东理工大学生物工程学院,上海200237;[2]中国科学院上海有机化学研究所,上海200032
年份:2010
卷号:26
期号:11
起止页码:186
中文期刊名:生物技术通报
外文期刊名:Biotechnology Bulletin
收录:CSTPCD;;北大核心:【北大核心2008】;CSCD:【CSCD_E2011_2012】;
语种:中文
中文关键词:林可链霉菌;林可霉素;属间接合转移;lmbQ基因;同框敲除
外文关键词:Streptomyces lincolnensis Lincomycin Inter-species conjugation lmbQ gene In-frame deletion
摘要:以载体pSET152和pKC1139为出发质粒,通过供体菌大肠杆菌ET12567和S17-1转入林可链霉菌(Streptomyces lincolnensis),建立和优化了接合转移体系。林可霉素生物合成基因簇中,lmbQ基因可能编码一个调控蛋白,构建了S.lin-colnensislmbQ基因中断载体,通过接合转移导入S.lincolnensis野生型菌株,筛选得到基因双交换突变株,通过PCR以及测序验证基因型正确,该突变株即为lmbQ同框敲除突变株。摇瓶发酵结果表明,lmbQ基因是一个正调控基因。
Intergeneric transfer of plasmid vectors pSET152 and pKC1139 from donor strain Escherichia coli ET12567 or S17-1 to Streptomyces lincolnensis was constructed and optimized.The lmbQ gene in the lincomycin gene cluster encode a putative regulatory protein.We constructed the gene disruption vector and then transformed into S.lincolnensis through inter-species conjugation.After PCR amplification and sequencing,we confirmed the resulting double cross-over strains are the lmbQ "In-frame deletion" mutants.The fermentation at the flask level proved that the lmbQ is a positive regulation gene.
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