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生物素化DNA与链霉亲和素绑定初步研究
引用本文:杨秋萍,何珊珊,王志民.生物素化DNA与链霉亲和素绑定初步研究[J].上海交通大学学报(农业科学版),2016(6):9-13, 20.
作者姓名:杨秋萍  何珊珊  王志民
作者单位:上海交通大学 农业与生物学院,上海200240,上海交通大学 农业与生物学院,上海200240,上海交通大学 农业与生物学院,上海200240
基金项目:上海交通大学创新基金支持项目(X198775)
摘    要:将生物素标记的DNA与链霉亲和素(streptavidin,STV)按4∶1摩尔比连接,用原子力显微镜(atomic force microscope,AFM)对混合物表征,观察到所有可能的几种DNA-STV复合物。并按照不同摩尔浓度比和孵育时间配制DNA与STV混合液,探讨了影响结合效率的因素,初步得到用生物素-链霉亲和素系统批量制备1STV-1DNA单分子复合物的最佳制备条件,为未来单分子DNA的大规模快速制备奠定了基础。

关 键 词:生物素-链霉亲和素系统    DNA-STV复合物    AFM    1STV-1DNA单分子复合物
收稿时间:2016/3/17 0:00:00

Preliminary Studies on the Binding of Biotinylated DNA to Streptavidin
YANG Qiu-ping,HE Shan-shan and WANG Zhi-min.Preliminary Studies on the Binding of Biotinylated DNA to Streptavidin[J].Journal of Shanghai Jiaotong University (Agricultural Science),2016(6):9-13, 20.
Authors:YANG Qiu-ping  HE Shan-shan and WANG Zhi-min
Institution:School of Agriculture and Biology,Shanghai Jiaotong University,Shanghai 200240,China,School of Agriculture and Biology,Shanghai Jiaotong University,Shanghai 200240,China and School of Agriculture and Biology,Shanghai Jiaotong University,Shanghai 200240,China
Abstract:Mixture conjugation products between biotinylated DNA and streptavidin(STV)at a molar ratio of 4:1 were characterized using atomic force microscope(AFM),and a few but not all types of DNA-STV conjugates were observed.Meanwhile,conjugation efficiency was investigated under various DNA to STV ratios and incubation time.The optimum parameters to produce 1STV-1DNA conjugate were preliminary obtained,providing a foundation for facile and large-scale preparation of single molecule DNA conjugate.
Keywords:biotin-streptavidin system  DNA-STV conjugation  AFM  single 1STV-1DNA conjugate
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