Lactococcus lactis NZ3900 with a deletion of lacF gene,combined with expression vector pNZ8149 that carrying lacF gene,use lactose as a selective marker,is a real eatable exogenous gene expression system.
乳酸乳球菌NZ3900缺失乳糖操纵基因(lacF基因),与含有lacF基因的乳酸乳球菌表达载体pNZ8149联合使用,以乳糖为选择标记,是一个食品级的外源基因表达系统。
参考来源 - 猪流行性腹泻病毒COE基因乳酸菌表达载体的构建与表达研究Bar gene also is one of widely used selective marker gene. The cloning of bar gene is important to plant transgenic engineering, gene expression and studying physiology.
而且bar基因也是迄今为止应用最为广泛的一个抗除草剂选择标记基因，克隆出bar基因对植物的遗传转化，基因表达和生理学研究都有重要的作用。
参考来源 - 抗除草剂bar基因表达载体的构建及农杆菌转化的研究·2,447,543篇论文数据，部分数据来源于NoteExpress
At present, inbred lines of transgenic insect resistant maize with selective marker gene removed are in separating and inbreeding program assisted by DNA marker detection.
目前，正结合进行田间分离纯合和DNA分子鉴定，培育去除选择标记基因的转基因抗虫玉米自交系。
The vector is in ring shape , comprising a procaryon replication origin, two eucaryon replication origins and selective marker genes, and two green fluorescent protein gene expression cassettes;
该载 体是一种环状载体，包含原核复制起点、真核复制起点、筛选标记基因和绿色荧光蛋 白基因表达盒；
CONCLUSION: CD117 can be regard as the related tumor antigen of MM, and may be a valuable marker in the use of tyrosine kinase selective inhibitors, which inhibit the signal conduct to the target.
结论CD 117可作为MM的肿瘤相关抗原，也可作为靶向信号转导抑制剂酪氨酸激酶选择性抑制剂应用的有价值的标志。
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